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Patent #US4035023A

Apparatus and process for hydraulic mining

AI Summary

Apparatus for and process of mining a subterranean

Inventors

COCKRELL, CLIFFORD MCDONALD

1977-07-12

Patent #US8197885B2

Methods for producing sodium/molybdenum powder compacts

AI Summary

A method for producing a metal article according to one embodiment may include: Providing a supply of a sodium/ molybdenum composite metal powder; compacting the sodium/molybdenum composite metal powder under suffi- cient pressure to form a preformed article; placing the pre- formed article in a sealed container; raising the temperature of the sealed container to a temperature that is lower than a sintering temperature of molybdenum; and subjecting the sealed container to an isostatic pressure for a time sufficient to increase the density of the article to at least about 90% of theoretical density.

Inventors

COLE, JAMES, COX, CARL, HONECKER, DAVE, MICHALUK, CHRISTOPHER

2012-06-12

Patent #US4165264A

Ammonia leaching

AI Summary

An improved process for obtaining copper from a cop- per sulfide, in which: the copper sulfide is treated with oxygen and an aqueous leaching solution of ammonium carbonate, to form a leach liquor which contains ammo- nia complexes of copper sulfate and copper carbonate; the leach liquor is heated to form gaseous ammonia and carbon dioxide; the leach liquor is treated with a strongly alkaline material to precipitate sulfates and form additional gaseous ammonia; and the copper is then recovered by electrowinning. In this process, the ammonium carbonate leaching solution is formed from carbon dioxide that is generated by: adding a metal carbonate to the leach liquor during the heating thereof, and recovering the gaseous carbon dioxide, as well as the gaseous ammonia, formed during the heating of the leach liquor.

Inventors

SATCHELL, JR., DONALD P.

1979-08-21

Patent #US5985236A

Ammonium octamolybdate composition and method for producing the same

AI Summary

Anovel isomer of ammonium octamolybdate (*“AOM7”) and method for producing the same. A new AOM isomer (“X- AOM”) is described which is characterized by a distinctive Raman spectral profile compared with other AOM isomers including a and B-AOM. To produce the novel isomer, ammonium dimolybdate (“ADM”) is combined with molyb- denum trioxide (MoO,) and water to yield a mixture. When mixing these materials, optimum results are achieved if at least one of the foregoing molybdenum-containing reagents is added in a gradual, non-instantaneous manner so that the selected reagent is not added to the mixture in a single large mass. This gradual delivery procedure, along with a care- fully controlled prolonged heating stage (e.g. in excess of 3 hours) contributes to a maximum yield of high purity X-AOM.

Inventors

BRUHL, TIMOTHY G., COLE, JAMES A., ELDER, WENDELL S., GLASGOW, GARY A., KHAN, MOHAMED H., WAGH, VIJAYKUMAR M.

1999-11-16

Patent #US7186653B2

Polishing slurries and methods for chemical mechanical polishing

AI Summary

Aqueous polishing slurries for chemical-mechanical polish- ing are effective for polishing copper at high polish rates. The aqueous slurries according to the present invention may include soluble salts of molybdenum dissolved in an oxi- dizing agent and molybdic acid dissolved in an oxidizing agent. Methods for polishing copper by chemical-mechani- cal planarization include polishing copper with low pres- sures using a polishing pad and a aqueous slurries including soluble salts of molybdenum dissolved in an oxidizing agent and molybdic acid dissolved in an oxidizing agent, particles of MoO, dissolved in an oxidizing agent, and particles of MoO, dissolved in an oxidizing agent.

Inventors

BABU, SURYADEVERA V., HEGDE, SHARATH, HONG, YOUNGKI, JHA, SUNIL CHANDRA, NIMMALA, SREEHARI, PATRI, UDAYA B.

2007-03-06

Patent #US3969169A

Method of making paper-insulated electrical conductor

AI Summary

Interposed between the conductor and the helical or longitudinal wrapping of paper insulation is a layer of selfsetting, heat sealable emulsion having adhesive properties and which is inert, water soluble and free of metal. The emulsion is absorbed by the innermost lay of the paper and causes it to adhere to the next outer paper lay, while the outer portion of the paper which is not exposed to the saturated portion remains loosely formed around the conductor. Upon drying of the paper insulation, the solid portion of the emulsion re- mains as a film on the periphery of the conductor and the innermost surface of the paper.

Inventors

FEDER, CHARLES, SANTOS, JR., ADRIAN Y.

1976-07-13

Patent #US7413724B2

Method for producing nano-particles from a precursor material

AI Summary

Method for producing nano-particles from a precursor mate- rial. One embodiment of the method comprises vaporizing the precursor material to produce a vapor, directing the vapor into an isolation chamber, contacting the vapor contained in the isolation chamber with a quench fluid stream, the quench fluid stream cooling the vapor to produce the nano-particles, and removing the nano-particles from the isolation chamber.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2008-08-19

Patent #US4124253A

Sulfur well sealing method

AI Summary

A method is disclosed for sealing a sulfur well wherein the weil is made to discharge only sulfur and air instead of mixtures of sulfur, water and air. The method is used in conjunction with the Frasch mining technique when starting a new well for the first time and when an active well: has “blown”. The method consists of shutting off the sulfur line and air line, “boosting” the well by send- ing down hot “superheated water” through the water line to raise the level of the sulfur pool by melting addi- tional sulfur, slowly applying a pressurized gas to the top of the sulfur line and holding at an elevated pressure for a period of time and then slowly releasing the pres- surized gas. The air line is then opened and pressurized, and a mixture of sulfur and air, devoid of water, exits through the sulfur line.

Inventors

HRANITZKY, WALTER W., LATIOLAIS, RENE L.

1978-11-07

Patent #US4207302A

Method of treating phosphoric acid to prevent crud formation during solvent extraction

AI Summary

A method for pretreating phosphoric acid to prevent the formation of a mass of suspended solids (i.e., “crud”’) during solvent extraction of the acid is described. Prior to solvent extraction, the acid is contacted with a liquid hydrocarbon such as kerosene which collects the crud- forming agents. The mixture of liquid hydrocarbon and collected crud-forming agents is separated from the acid and the liquid hydrocarbon is regenerated for reuse in the first step of the method.

Inventors

SMITH, JAY C.

1980-06-10

Patent #US4384889A

Simultaneous leaching and cementation of precious metals

AI Summary

A method for the recovery of precious metals such as gold and silver from various ore types is disclosed which involves subjecting a slurry of the ore to a simul- taneous leaching and cementation process with a rea- gent such as an alkaline cyanide solution providing for the leaching requirement and a reducing metal afford- ing cementation. The reducing metal is selected from the group consisting of cadmium, copper, iron, lead, molybdenum, tin, zinc and alloys and mixtures compris- ing at least two of these metals. The simultaneous leach- ing and cementation occur under conditions controlled to afford at least partial dissolution of the precious metal values from the ore, whereby continuous transfer of these values from the ore onto the surface. of the reduc- ing metal is promoted. The resultant cementation prod- uct, i.e., the reducing metal with precious metal values cemented thereon, is separated from the ore slurry and subjected to a subsequent precious metal recovery step by conventional methods.

Inventors

MOLLERE, PHILLIP D., WIEWIOROWSKI, TADEUSZ K.

1983-05-24

Patent #US3981968A

Solvent extraction of nickel from ammoniacal solutions

AI Summary

An ammoniacal solution containing nickel and cobalt is contacted with an extractant comprising an oxime or oxine compound dissolved in an organic diluent to selectively extract the nickel into the organic phase while leaving most of the cobalt in the aqueous ammo- niacal phase from which it is subsequently recovered. The nickel-loaded organic extract is washed with water and aqueous carbon dioxide to remove and re- cover ammonia which undesirably transfers to the or- ganic phase during the extraction. The ammonia-free, nickel-loaded extract is then stripped with aqucous sulfuric acid at low temperature to remove the nickel. The ammonia-free nickel sulfate solution produced in the stripping operation is particularly suitable for re- covering the nickel by electrolytic deposition. The stripped organic extract is further stripped with aque- ous sulfuric acid at high temperature to remove and recover the small amount of cobalt which transfers to the organic phase during extraction and hampers reuse of the organic extractant in the process. Re- moval of the cobalt permits recycle of the extractant to the process.

Inventors

MILLER, DAVID J., WIEWIOROWSKI, TADEUSZ K.

1976-09-21

Patent #US4190633A

Crud handling circuit

AI Summary

A method for handling the problem of crud formation in the solvent extraction of wet-process phosphoric acid is described. Crud is the name ordinarily given to the thick interfacial layer of serii-floatable material which tends to form and accumulate, and which interferes with many of the extraction processes and, in particular, with the solvent extraction of wet-process phosphoric acid. The method described provides for the operation of the solvent extraction stages in a manner that allows the formation and temporary accumulation of crud in those stages whereupon the solvent and the crud are then removed from the extraction stages and treated in a series of operations which include a clarification step, an acid removal step, a water wash step and a caustic treatment step, which steps effectively separate the solvent from the crud, and remove the crud compo- nents from the system and regenerate otherwise unus- able solvent.

Inventors

MANUEL, RONALD J., MCALLISTER, JAMES E., SMITH, JAY C.

1980-02-26

Patent #US5733500A

Molten metal degassing and filtering apparatus

AI Summary

Molten metal (e.g., on its way to a continuous casting machine for forming a bar that will be rolled into a rod to be irawn down to wire) is filtered to remove particulate impu- ‘ities by passing it through at least one and preferably several ceramic filters. In addition, the molten metal is iegassed by injecting a flushing gas into the metal through yne or more porous plugs in the bottom of the chamber through which the molten metal flows. A partial vacuum column above each porous plug is used to help pull gas up through and out of the metal.

Inventors

MESEHA, GEORGE M., TAVARES, FAUSTO

1998-03-31

Patent #US6740453B2

Electrochemical cell with carbonaceous material and molybdenum carbide as anode

AI Summary

A rechargeable lithium ion electrochemical cell and/or bat- tery configured to provide improved reversible energy stor- age capacity is disclosed. The electrochemical cell and/or battery comprising a body of aprotic, non-aqueous electrolyte, first and second electrodes in effective electro- chemical contact with the electrolyte, the first electrode comprising a cathode formed by active materials such as a lithiated intercalation compound and the second electrode comprising an anode formed by a carbonaceous material combined with molybdenum carbide. An electrochemical lithium ion cell and/or battery according to the invention is designed to provide improved reversible energy storage capacity characteristics as compared with similar lithium- ion cells having carbon anodes that are not combined with molybdenum carbide.

Inventors

HOSSAIN, SOHRAB, KHAN, MOHAMED H.

2004-05-25

Patent #US7829060B2

Nano-particles of molybdenum oxide

AI Summary

Nano-particle of MoO,. The nano-particle of the present invention has a surface area in the range of 33 to about 68 m?/g as determined by BET. The nano-particle may also have a rod-like non-hollow configuration.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2010-11-09

Patent #US5125965A

Method for maintaining fluidization in a fluidized bed reactor

AI Summary

A process for enhancing fluidization in a fluidized bed reactor chamber. In a preferred embodiment, molybde- num oxide is reduced to molybdenum metal in the fluid- ized bed. An oxidant is introduced into the fluidized bed during the reducing process in order to substantiaily prevent or reverse the agglomeration of the particles.

Inventors

SEBENIK, ROGER F.

1992-06-30

Patent #US3918223A

Sectional stud for modular wall section

AI Summary

A sectional stud for use in a modular building system to interconnect adjacent’ wall sections having inner and outer skin panels comprising a pair of spaced metal drive cleats fastened to an intermediate plastic member of tubular cross-section and adapted for in- terlocking connection with the skin panels of adjacent wall sections disposed in edgewise butting relation so as to rigidly interconnect the inner and outer skin pan- els of respective wall sections and to securely join the wall sections together. The drive cleats preferably are connected to the tubular member by flanges slidably interlockingly engaged in T-slots formed in circumfer- entially spaced, longitudinally extending, ribs on and disposed about the outer periphery of the tubular member. The tubular member may also be utilized for other purposes such as a conduit or chase for housing electrical conductors, and the slotted ribs also can be utilized for other purposes such as supporting an elec- trical receptacle box in a modular wall section.

Inventors

CARLSSON, SVEN A.

1975-11-11

Patent #US5654095A

Pulsed voltage surge resistant magnet wire

AI Summary

A pulsed voltage surge resistant magnet wire comprising a conductor, a continuous and concentric and flexible uniform coat of base insulation material superimposed on the con- ductor and an essentially continuous and concentric and uniform pulsed voltage surge shield overlaying the coat of base insulation material.

Inventors

BARTA, DONALD J., YIN, WEIJUN

1997-08-05

Patent #US4422624A

Concentrate burner

AI Summary

A burner for smelting metal-bearing sulfide ores or concentrates by means of an oxygen-rich gas is dis- closed. The oxygen-rich gas is introduced into a cham- ber so as to aspirate or eject the metal-bearing sulfide ore or concentrate. The oxygen-rich gas and sulfide concentrate are intimately admixed in a cylindrical mixing chamber and then jetted into the heated atmo- sphere of a smelting furnace.

Inventors

ARANA, DAVID, DUNHAM, H. E., JACKSON, TERRELL D., MCEUEN, BRENT E., SCHNEIDER, JOHN A.

1983-12-27

Patent #US9364788B2

Methods and systems for recovering ammonia

AI Summary

A method of removing ammonia from a gas stream may involve the steps of: Providing a primary slurry composition of a molybdic acid at a first pH; providing a secondary slurry composition of a molybdic acid at a second pH, the second pH being numerically lower than the first pH; atomizing the primary slurry composition in the presence of the gas stream to produce a partially processed gas stream, quantities of ammonia in the gas stream combining with the molybdic acid in the primary slurry composition to form a further concen- trated primary ammoniated slurry composition; and atomiz- ing the secondary slurry composition in the presence of the partially processed gas stream to produce a processed gas stream, additional quantities of ammonia in the partially pro- cessed gas stream combining with the molybdic acid in the secondary slurry composition to form a further concentrated secondary ammoniated slurry composition.

Inventors

TAUBE, JOEL A.

2016-06-14

Patent #US8124556B2

Electrochemically active composition, methods of making, and uses thereof

AI Summary

Accordingly, in various embodiments, the present invention provides methods for making electrochemically active mate- rials. Methods include making an electrochemically active material by reacting a platinum group metal salt in a organic solvent to yield a mixture, then heating the mixture to create a metal-organic solvent complex and an acid, followed by removing at least a portion of the acid, and yielding an elec- trochemically active material comprising the metal-organic solvent complex. In an exemplary embodiment, the resulting electrochemically active material may be used for coating an electrode.

Inventors

CLAYTON, CASEY J, SANDOVAL, SCOT P, WAITE, MICHAEL D

2012-02-28

Patent #US3884880A

Modified amide-imide resins and method of making the same

AI Summary

A modified completely imidized aromatic polyamide- imide resin which can be applied from conventional phenolic solvents such as cresylic acid, phenols, cre- sols and the like. The method of the invention in- cludes reacting an aromatic diisocyanate and an aro- matic tricarboxylic acid anhydride in an aprotic sol- vent, modifying the reaction product with an aliphatic dicarboxylic acid, and diluting the same to an appro- priate degree with a solvent. Solutions of the resin having relatively low viscosity and a relatively high resin content can also be made by the method of the invention. The modified polyamide-imide resin of the invention has thermal stability and toughness ap- proaching non-modified aromatic polyamide-imide - resins and are fully useful as such resins as insulation materials in the electrical industry.

Inventors

DISQUE, DONNY R., KOERNER, ERNEST C.

1975-05-20

Patent #US7572430B2

Method for producing nano-particles

AI Summary

Apparatus for producing nano-particles according to the present invention may comprise a furnace defining a vapor region therein. A precipitation conduit having an inlet end and an outlet end is positioned with respect to the furnace so that the inlet end is open to the vapor region. A quench fluid supply apparatus supplies quench fluid in a gas state and quench fluid in a liquid state. A quench fluid port positioned within the precipitation conduit is fluidically connected to the quench fluid supply apparatus so that an inlet to the quench fluid port receives quench fluid in the gas state and quench fluid in the liquid state. The quench fluid port provides a quench fluid stream to the precipitation conduit to precipitate nano-par- ticles within the precipitation conduit. A product collection apparatus connected to the outlet end of the precipitation conduit collects the nano-particles produced within the pre- cipitation conduit.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2009-08-11

Patent #US4655790A

Phosphoric acid crystallization process

AI Summary

The present invention relates to the processing of phos- phoric acid by crystallization. Wet-process phosphoric acid is purified by cooling it to supersaturated condi- tions and adding relatively large amounts of fine, rela- tively pure seed crystal. Crystallization thereafter pro- ceeds under conditions which substantially favor crys- tal growth on the seeds which are added and disfavor secondary nucleation. To prevent the crystallizing magma from reaching a viscosity which would render further processing difficult, the present invention pro- vides for recycling raffinate in an amount sufficient to maintain the solids content of the crystallizing magma below about 40%.

Inventors

ASTLEY, VIVIAN C., WIEWIOROWSKI, TADEUSZ K.

1987-04-07

Patent #US4313430A

Solar energy absorbing-heat exchanger device

AI Summary

A solar energy absorbing-heat exchanger device in- _cludes a copper tube and first and second identical cop- _ per sheets, the two sheets having semi-cylindrical curved surfaces which together fully enclose the tube and the sheets otherwise being essentially flat. Each sheet is joined to the other directly adjacent to and on opposite: sides of the tube by two roll-formed seams. The roll-formed seams hold the sheets about the tube in tension to maintain contact between the tube surface and curved surfaces of the sheets. The semi-cylindrical curved surfaces may be roll-formed, as may be narrow channels and angular turns in each sheet which, when interengaged, are roll-formed toward the enclosed tube to form the two seams. The seams may include the use of. solder, stiffener grooves may be added to the flat parts of the copper sheets, and channels may be added at the ends of the sheets remote from the enclosed tube to connect a number of such devices together. The roll-forming of the sheets may be carried out by a con- tinuous, high-speed process.

Inventors

BRITNER, GEORGE F., ZIVIC, JOHN A.

1982-02-02

Patent #US7438888B2

Molybdenum oxide nano-particles

AI Summary

Molybdenum oxide nano-particles. The nano-particles may be made by vaporizing the precursor material to produce a vapor; directing the vapor into an isolation chamber; contact- ing the vapor contained in the isolation chamber with a quench fluid stream to precipitate nano-particles; and remov- ing the nano-particles from the isolation chamber.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2008-10-21

Patent #US4487750A

Stabilization of wet process phosphoric acid

AI Summary

An improved method for producing wet process phos- phoric acid with low post-precipitation characteristics from an unclarified dilute wet process phosphoric feed acid is described. The feed acid is processed through crystallization, centrifugation and concentration steps under controlled conditions to produce the desired products. The method also allows for the simultaneous production of merchant grade phosphoric acid and clarified merchant phosphoric acid.

Inventors

ASTLEY, VIVIAN C., TARAVELLA, JODY J.

1984-12-11

Patent #US5147618A

Process for recovery of gold from refractory gold ores using sulfurous acid as the leaching agent

AI Summary

A process for recovering gold from refractory gold- bearing ores uses sulfurous acid as the leaching agent to form a gold-sulfite complex. The ore is ground, slurried blended with a chelating agent and then subjected to a simultaneous dissolved SQ2 leaching and anion ex- change resin adsorption step in the presence of dis- solved oxygen. The gold transfers to the resin which is later separated from the resin by chemical stripping.

Inventors

TOURO, FREDDIE J., WIEWIOROWSKI, TADEUSZ K.

1992-09-15

Patent #US5391824A

Stabilized lithium reagents

AI Summary

An ether free organolithium reagent composition com- prising a solution of a lithium alkylamide having 4 to 20 carbon atoms, and lithium alkoxide present in a amount to increase the solubility of the lithium alkylamide com- pound and/or to prevent post precipitation thereof.

Inventors

SMITH, W. NOVIS

1995-02-21

Patent #US9878332B2

Methods of producing molybdenum disulfide powders

AI Summary

A method of producing powder product includes the steps of: Feeding a precursor powder material into a jet mill; feeding a gas into the jet mill to initiate a jet milling operation to produce size-reduced particles; and coating size-reduced particles with oil so that newly exposed sur- faces of size-reduced particles are coated with oil, wherein the coating step includes one or more of a post-milling oil injection process and a pre-milling oil injection process.

Inventors

COLE, JAMES A., COTTRELL, DAVID L., DE GALA, GARY G., GIANNOTTI, LARRY, LOGUE, GREGORY RUE

2018-01-30

Patent #US9597631B2

Systems for recovering ammonia

AI Summary

Apparatus for removing ammonia from a gas stream includes primary and secondary scrubbers each of which includes a gas inlet, a gas outlet, and a slurry atomizer. The gas inlet of the primary scrubber is operatively connected to a gas stream having ammonia contained therein. A primary slurry feed system operatively connected to the slurry atom- izer of the primary scrubber feeds to the slurry atomizer a primary slurry composition of a molybdic acid at a pH level. The gas inlet of the secondary scrubber is operatively connected to the gas outlet of the primary scrubber. A secondary slurry feed system operatively connected to a slurry atomizer of the secondary scrubber feeds to the slurry atomizer a secondary slurry composition of a molybdic acid at pH level. The pH level of the secondary slurry compo- sition is lower than the pH level of the primary slurry composition.

Inventors

TAUBE, JOEL A.

2017-03-21

Patent #US4780157A

Method and apparatus for manufacturing transposed ribbon cable and electromagnetic device

AI Summary

Improved method and apparatus for manufacturing transposed ribbon cable, an improved ribbon cable in which a plurality of insulated wires are juxtaposed in fixed relationship to each other, and an improved trans- posed ribbon cable in which each conductor of the cable of the invention is in the form of a continuous helix. The transposed ribbon cable is manufactured by the method and apparatus of the invention by folding a ribbon cable angularly with respect to the longitudinal axis repeatedly while advancing the ribbon cable incre- mentally.

Inventors

COON, JESSIE H.

1988-10-25

Patent #US8956724B2

Spherical molybdenum disulfide powders, molybdenum disulfide coatings, and methods for producing same

AI Summary

Molybdenum disulfide powders include substantially spheri- cally-shaped particles of molybdenum disulfide that are formed from agglomerations of generally flake-shaped sub- particles. The molybdenum disulfide powders are flowable and exhibit uniform densities. Methods for producing a molybdenum disulfide powder may include the steps of: Pro- viding a supply of molybdenum disulfide precursor material; providing a supply ofa liquid; providing a supply of a binder; combining the molybdenum disulfide precursor material with the liquid and the binder to form a slurry; feeding the slurry into a stream of hot gas; and recovering the molybdenum disulfide powder, the molybdenum disulfide powder includ- ing substantially spherically-shaped particles of molybde- num disulfide formed from agglomerations of generally flake-shaped sub-particles.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2015-02-17

Patent #US5106603A

Method for removing sulfur dioxide from gas streams

AI Summary

A process and apparatus for removing SO2 from low- volume gas streams containing high concentrations of SO includes a tank scrubber containing an aqueous SO absorbent and an impeller. The impeller includes a vertical rotating shaft having an upper and lower impel- ler. The lower impeller serves to agitate the SO2 absor- bent. The upper impeller includes a shroud thereby directing the absorbent and gas outwardly toward the wall of the scrubber. The gas is injected into the absor- bent at a point below the shrouded impeller. The shroud prevents gas bypass and thereby promotes gas-liquid mixing and, consequently, markedly improves SQ) re- moval efficiency.

Inventors

MCCORD, THOMAS H., SMITH, JAY C., STRICKLAND, ROBIN W.

1992-04-21

Patent #US7097691B2

Method for producing pigment nano-particles

AI Summary

Method for producing pigment nano-particles may include vaporizing a pigment precursor material; drawing the vapor- ized pigment precursor material into a precipitation conduit; contacting the vapor in the precipitation conduit with a collection fluid at a first location within the precipitation conduit, the contacting cooling the vapor and precipitating pigment nano-particles, the contacting occurring in the absence of a temperature change in the vapor at locations within the precipitation conduit that are upstream of the first location; and collecting the pigment nano-particles in a collection fluid.

Inventors

JOHNSON, JR., LOYAL M., PUTMAN, LARRY G., TAUBE, JOEL A.

2006-08-29

Patent #US3917519A

Process for the manufacture of electrolytic copper

AI Summary

A process is described for making electrolytic copper of high quality from chalcopyrite flotation concen- trates, and the like. The concentrates are first slurried and then subjected to a high temperature-high pres- sure oxidation-leaching operation in an autoclave sys- tem under controlled conditions. The resulting slurry from the oxidation-leaching operation is flashed to at- mospheric pressure in order to remove heat and then subjected to a solids-liquid separation. The separated liquor from the solids-liquid separation system, con- taining the recovered copper values, is cooled and then fed to an electrolytic deposition operation where metallic copper cathodes of high purity are produced. The spent electrolyte is further subjected to a sulfide treatment to precipitate and recover, as copper sul- fide, the residual amounts of copper not deposited in the electrolytic cells. The copper sulfide is then recy- cled in the form of a slurry to the initial stages of the process.

Inventors

FISHER, BERNARD M., HILLS, ROBERT C., TOURO, FREDDIE J.

1975-11-04

Patent #US3937673A

Modified amide-imide resins and method of making the same

AI Summary

A modified completely imidized aromatic polyamide- imide resin which can be applied from conventional phenolic solvents such as cresylic acid, phenols, cre- sols and the like. The method of the invention in- cludes reacting an aromatic diisocyanate and an aro- matic tricarboxylic acid anhydride in an aprotic sol- vent, modifying the reaction product with an aliphatic dicarboxylic acid, and diluting the same to an appro- priate degree with a solvent. Solutions of the resin having relatively low viscosity and a relatively high resin content can also be made by the method of the invention. The modified polyamide-imide resin of the invention has thermal stability and toughness ap- proaching non-modified aromatic polyamide-imide resins and are fully useful as such resins as insulation materials in the electrical industry.

Inventors

DISQUE, DONNY R., KOERNER, ERNEST C.

1976-02-10

Patent #US3828304A

Slide-on RF connector

AI Summary

A slide-on connector including a plug and jack for - electrically connecting the ends of two radio fre- quency coaxial cables to minimize radio frequency (RF) current leakage when fully butted and slightly unbutted.

Inventors

WINN, DONALD J.

1974-08-06

Patent #US3714326A

Recovery of nickel and cobalt from reduced nickeliferous ores

AI Summary

In an ammoniacal leaching process for the recovery of nickel and cobalt from reduced nickeliferous ores, copper contamination of the product liquor may be minimized or substantially avoided by controlling ox- idation of ore constituents during aeration of a slurry of reduced ore and leach liquor.

Inventors

MATSON, RAPHEAL F.

1973-01-30

Patent #US7772520B2

Hand-held laser cutting apparatus and method using same

AI Summary

A hand-held apparatus is disclosed, where that hand-held apparatus comprises a hand piece having an output end, a switch disposed on that hand piece, wherein that switch includes “on” position and an “off” position, and wherein a laser beam is directed outwardly from the output end of the hand piece when the switch is disposed in the “on” position. In certain embodiments, a lasing device is disposed within the hand piece. In other embodiments, a lasing device is disposed external to the hand piece, wherein that lasing device is inter- connected with the hand piece by a fiber optic cable.

Inventors

BUSHROE, FREDERICK N., KHAN, MOHAMED H., WALTERS, CRAIG T.

2010-08-10

Patent #US4384890A

Cupric chloride leaching of copper sulfides

AI Summary

3,490,899 3,630,722 3,637,372 3,642,435 3,669,650 3,673,061 3,674,424 3,692,647 3,764,490 3,767,543 3,776,826 3,785,944 3,798,026 3,879,272 3,880,732 3,880,748 3,901,776 3,922,167 3,923,616 3,957,602 3,972,711 4,011,146 4,013,457 4,023,964 4,026,772 4,039,324 4,053,305 4,070,182

Inventors

CLEVENGER, GALEN W., PEPPLE, GEORGE W.

1983-05-24

Patent #US4726939A

Process for the removal of mercury from precious metal-cyanide liquors

AI Summary

This invention is a process for removing mercury from the desorption or cyanide liquor of a precious metal recovery, cyanide leach system. A sulfide ion-produc- ing compound and a flocculating agent are added to the desorption liquor to form and flocculate mercuric sul- fide. The desorption liquor typically has a cyanide con- centration of between about 0.5 percent and about 2.0 percent by weight. The flocculated mercuric sulfide is separated from a substantially mercury-free precious metal-containing, cyanide solution.

Inventors

TOURO, FREDDIE J.

1988-02-23

Patent #US7625421B2

Molybdenum metal powders

AI Summary

Novel forms of molybdenum metal. Novel forms of molyb- denum metal are characterized by a surface area of substan- tially about 2.1 m7/g to substantially about 4.1 m?/g. Novel forms of molybdenum metal are also characterized by a rela- tively uniform size.

Inventors

JOHNSON, JR., LOYAL M., KAHN, MOHAMED H., TAUBE, JOEL

2009-12-01

Patent #US3739272A

Filter circuit for corona detection

AI Summary

A filter network for providing essentially optimum res- olution of pulse response in the detection of high fre- quency corona discharge, including a high pass filter for removing the low frequency power line signal and its harmonics, and a low pass lossy transformer which introduces a low frequency bucking voltage in a subse- quent stage of detection to balance out any residual low frequency signals still present, thereby providing im- proved resolution and sensitivity in the detection of co- rona discharge.

Inventors

MCKEAN, ALEXANDER L.

1973-06-12

Patent #US5942473A

Solid magnet wire winding lubricants

AI Summary

A magnet wire insulation material having combined there- with a magnet wire winding lubricant having the formula of

Inventors

KNERR, ALLAN R., LINDVAY, MICHAEL W.

1999-08-24

Patent #US5904157A

Copper surface pickling system

AI Summary

A copper surface pickling process is improved by providing most of the oxidizing agent (such as hydrogen peroxide) used in the process in a separate bath following a primarily acid bath. The temperature of the separate hydrogen perox- ide bath can be kept lower, which reduces hydrogen perox- ide loss and therefore consumption. After the hydrogen peroxide bath, the copper surface is subjected to high pressure rinsing, including a final stage in which purified (e.g., distilled) water is used.

Inventors

APPADWEDULA, RAMANA V., BROWN, EMORY C., MESEHA, GEORGE M., TRAVARES, FAUSTO V.

1999-05-18

Patent #US9290664B2

Treated ammonium octamolybdate composition and methods of producing the same

AI Summary

A treatment method includes the steps of: Providing an initial supply of an ammonium octamolybdate precursor powder having a bi-modal particle size distribution; applying a quan- tity of solvent to the initial supply of ammonium octamolyb- date precursor powder to form a moistened intermediate pow- der; and allowing the moistened intermediate powder to adsorb the applied solvent over a time period, the quantity of solvent applied and the time period being sufficient to form a treated ammonium octamolybdate powder composition hav- ing a substantially uni-modal particle size distribution.

Inventors

COTTRELL, DAVID L., MOREY, EVAN K.

2016-03-22

Patent #US7192467B2

Method for producing molybdenum metal and molybdenum metal

AI Summary

Novel forms of molybdenum metal, and apparatus and methods for production thereof. Novel forms of molybde- num metal are preferably characterized by a surface area of substantially about 2.1 m?/g to substantially about 4.1 m7/g. Novel forms of molybdenum metal are also preferably characterized by a relatively uniform size.

Inventors

JOHNSON, JR., LOYAL M., KHAN, MOHAMED, TAUBE, JOEL

2007-03-20

Patent #US4569491A

Spool package

AI Summary

An improved spool for packaging and handling ribbon material or cable. The spool has a cylindrical hub with a central spindle opening extending therethrough, two opposite flange portions, and one or more central flange portions. Each of the flange portions is disk shaped and radially extends outwardly from the hub.

Inventors

KAUFFMAN, JOHN C.

1986-02-11

Patent #US4510027A

Simultaneous leaching and electrodeposition of precious metals

AI Summary

A method for the recovery of precious metals such as gold and silver from various ore types is described which involves subjecting a slurry of the ore to a simul- taneous leaching and electrodeposition process by mix- ing the slurry with a reagent such as an alkaline cyanide solution which provides for the leaching requirement and contacting said slurry with a metallic cathode with a negative electric potential applied thereto providing for the electrodeposition requirement. The cathode is made of a metal selected from the group consisting of cadmium, copper, iron, lead, molybdenum, tin, zinc, cobalt, nickel, silver, titanium, tungsten, vanadium and alloys and mixtures containing at least one of these © metals. The simultaneous leaching and electrodeposi- ‘tion occur under conditions controlled to afford at least partial dissolution of the precious metal values from the ore, whereby continuous transfer of the precious metal from the ore onto the surface of the cathode is pro- moted. The resultant electrodeposition product, i.e., the cathode with precious metal values electrodeposited thereon, is then separated from the ore slurry and sub- jected to a subsequent precious metal recovery step by conventional methods.

Inventors

MOLLERE, PHILLIP D., WIEWIOROWSKI, TADEUSZ

1985-04-09

Patent #US3961030A

Production of alumina from ores

AI Summary

An aluminum-containing ore such as a kaolin or mont- morillonite clay is treated with a fluorine acid such as HF or H.SiF, to produce aluminum fluoride (AIF3) which is recovered from the liquid phase of the reac- tion mixture by crystallization as AIF, . 3H,O crystals which are then dried and dehydrated to yield AIF;. The crystallization mother liquor is recycled to the process to recover its AIF, values. The AIF, . 3H,O crystals and separated solid phase of the reaction mix- ture are washed to recover AIF; values and the wash streams are recycled to the process. To produce alu- mina, the AIF; is pyrohydrolyzed to Al,O,; and HF. The HF is absorbed in the crystallization mother li- quor and recycled with the mother liquor to the ore treatment step. All or a part of fluorine acid require- ments can also be supplied from any suitable source such as, for example, a wet process phosphoric acid facility which is a plentiful source of inexpensive fluo- rine. The fluorine acid requirements can be supplied in a recycle stream of the process such as the crystalli- zation mother liquor and/or a fresh make-up stream. The process converts the aluminum values in alumi- num-containing ore deposits to a form (Al,Q3) useful in the production of aluminum metal.

Inventors

MILLER, DAVID J., WIEWIOROWSKI, TADEUSZ K.

1976-06-01

Patent #US4594132A

Chloride hydrometallurgical process for production of copper

AI Summary

A process for extractive metallurgy of metal sulfides, in particular copper sulfide ores, in which a metal sulfide mineral feed material is cocurrently oxidized in an aque- ous cupric chloride solution in the presence of an oxi- dant to form a slurry containing a metal hydroxide precipitate; the slurry is leached with an acid; the leach solution is extracted with an organic extractant; the organic extractant is stripped with an aqueous stripping medium; and the copper is electrowon from the aqueous stripping medium. The large amount of acid required for the oxidation reaction is provided by the formation of the metal hydroxide precipitate.

Inventors

GERLACH, JOHN N., SATCHELL, JR., DONALD P.

1986-06-10

Patent #US6398939B1

Method and apparatus for controlling flow in an electrodeposition process

AI Summary

An electrowinning cell, having a tank with an opened upper end defined by a tank edge, electrolyte within the tank and a plurality of flat, metallic electrode plates disposed within the tank in side-by-side, spaced-apart, parallel relationship. Adjacent electrode plates define an electrode gap therebe- tween. An injector manifold is disposed at the bottom of the tank for feeding electrolyte into the tank at locations below the electrode plates. A collector grid, comprised of a plu- rality of collectors having ports, define an upper level of electrolyte by collecting the electrolyte from the tank. The ports are disposed in spaced-apart relationship within the open upper end defined by the tank edge. The collector grid and the injector creating a flow of electrolyte upward between the plates as the electrolyte flows from the manifold locations below the plates to the ports.

Inventors

HUENS, JEAN-LOUIS, PECKHAM, PETER

2002-06-04

Patent #US4762700A

Ammonium octamolybdate-alpha

AI Summary

Ammonium octamolybdate-alpha is formed by reacting powdered molybdenum trioxide with a solution of am- monium dimolybdate in water at the boiling tempera- ture until thickening of the slurry occurs, after which the slurry is digested, filtered hot and the separated precipitate is dried.

Inventors

HUGGINS, DALE K.

1988-08-09

Patent #US6497745B2

Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

AI Summary

The present invention relates generally to a process for the production of sulfuric acid and liberation of precious metal values from materials containing sulfur through pressure leaching operations. In accordance with various aspects of the present invention, the sulfur-bearing materials may com- prise residues from pressure leaching operations, such as those carried out at medium temperatures. The process of the present invention can be advantageously used to convert such sulfur-bearing materials to sulfuric acid by means of pressure leaching. The sulfuric acid so produced can be used beneficially in other mineral processing operations, for example those at the site where it is produced. Metals, such as precious metals, that are contained within the sulfur- bearing materials advantageously may be recovered from processing products by established precious metals recovery technology.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2002-12-24

Patent #US4171783A

Filament dereeling apparatus

AI Summary

An apparatus for dereeling a filament wound on the barrel of a spool between opposite flanges. The dereel- ing apparatus comprises a rim adapted to be positioned on the upper flange of a spool resting on its other flange. Both the spool and the rim are stationary. The rim having an outwardly facing filament-contacting surface for training the dereeling filament out of contact with the upper spool flange and radially extending filament control members for resisting the movement of the dereeling filament around the upper spool flange.

Inventors

WALTEMATH, JOHN W.

1979-10-23

Patent #US7431810B2

Apparatus for controlling flow in an electrodeposition process

AI Summary

An electrowinning cell, having a tank with an opened upper end defined by a tank edge, electrolyte within the tank and a plurality of flat, metallic electrode plates disposed within the tank in side-by-side, spaced-apart, parallel relationship. Adjacent electrode plates define an electrode gap therebe- tween. An injector manifold is disposed at the bottom of the tank for feeding electrolyte into the tank at locations below the electrode plates. A collector grid, comprised of a plurality of collectors having ports, define an upper level of electrolyte by collecting the electrolyte from the tank. The ports are disposed in spaced-apart relationship within the open upper end defined by the tank edge. The collector grid and the injector creating a flow of electrolyte upward between the plates as the electrolyte flows from the manifold locations below the plates to the ports.

Inventors

HUENS, JEAN-LOUIS, PECKHAM, PETER

2008-10-07

Patent #US3738419A

Molten metal level control for continuous casting

AI Summary

\ moiten metal level control includes a breakable tube or automatically feeding molten metal from a source o the mold, the tube having a first portion attached to he source and a second portion depending from the irst portion. The control also includes float means me- hanically coupled to said second tube portion for au- omatically controlling the rate at which the molten netal enters the mold from the breakable feed tube, ind metering rod means positioned for coaction with aid first portion of the breakable feed tube to provide ininterrupted regulation of the rate of flow of molten netal therethrough from the source and into the mold luring emergencies when the second portion of the eed tube is broken from its first portion to eliminate utomatic level control.

Inventors

HARTMANN, GEORGE J., NESSLAGE, DONALD J.

1973-06-12

Patent #US7276102B2

Molybdenum metal powder and production thereof

AI Summary

Molybdenum metal powder, and method for production thereof. Molybdenum metal powder has surface-area-to- mass-ratios in a range of between about 1.0 meters?/gram (m?/g) and about 3.0 m?/g, as determined by BET analysis, in combination with a particle size wherein at least 30% of the particles have a particle size larger than a size +100 standard Tyler mesh sieve. In addition, molybdenum metal powder 10 may be further distinguished by flowability in a range of between about 29 seconds/50 grams (s/50 g) and about 64 s/50 g, as determined by a Hall Flowmeter. A method of producing molybdenum powder may comprise providing a supply of ammonium molybdate, heating the ammonium molybdate at an initial temperature in the pres- ence of a reducing gas to produce an intermediate product, and heating the intermediate product at a final temperature in the presence of the reducing gas, producing molybdenum metal powder.

Inventors

COX, CARL, JHA, SUNIL CHANDRA, JOHNSON, JR., LOYAL M., THOMPSON, PATRICK ANSEL

2007-10-02

Patent #US7553430B2

Polishing slurries and methods for chemical mechanical polishing

AI Summary

Aqueous polishing slurries for chemical-mechanical polish- ing are effective for polishing copper at high polish rates. The aqueous slurries according to the present invention may include soluble salts of molybdenum dissolved in an oxidiz- ing agent and molybdic acid dissolved in an oxidizing agent. Methods for polishing copper by chemical-mechanical pla- narization include polishing copper with low pressures using a polishing pad and a aqueous slurries including soluble salts of molybdenum dissolved in an oxidizing agent and molybdic acid dissolved in an oxidizing agent, particles of MoO, dis- solved in an oxidizing agent, and particles of MoO, dissolved in an oxidizing agent.

Inventors

BABU, SURYADEVARA VIJAYAKUMAR, CHANDRA, SUNIL, HEDGE, SHARATH, HONG, YOUNGKI, NIMMALA, SREEHARI, PATRI, UDAYA B.

2009-06-30

Patent #US5820844A

Method for the production of a purified MoO3 composition

AI Summary

A method for producing purified MoO, from MoS,. MoS, is initially oxidized to generate an impure MoO, product containing metallic contaminants and molybdenum sub- oxides. This product is then slurried with a primary water supply to yield a first slurry in which part of the contami- nants are dissolved. Preferred slurry temperatures are 25°-97° C. The resulting solid intermediate MoO, product is removed from the slurry leaving the dissolved contami- nants. Next, the intermediate MoO, product is slurried with a secondary water supply to yield a second slurry in which the remaining contaminants are dissolved. Second slurry temperatures of 150°-250° C. are employed in the presence of an oxygen-containing gas. These conditions oxidize molybdenum sub-oxides to yield MoO. The resulting puri- fied solid MoO, product is then removed from the second slurry. This process is highly efficient and avoids using liquid reagents other than water (including acids).

Inventors

COLE, JAMES A., KHAN, MOHAMED H., VOGEL, DANIEL V., WAGH, VIJAYKUMAR M.

1998-10-13

Patent #US4141886A

Essentially linear polymer having a plurality of amide, imide, and ester groups therein and a method of making the same

AI Summary

An essentially linear polymer having a plurality of am- ide, imide and ester groups therein, which is the con-

Inventors

BULTEMEIER, KEITH D., REMAKS, RICHARD D., SOLLNER, GEORGE H.

1979-02-27

Patent #US5820066A

Methods and apparatus for laying fluid distribution lines

AI Summary

Methods and apparatus for laying fluid distribution lines along a surface are disclosed. An overhead support cable is secured between a plurality of anchoring devices spaced along the surface. A rotatable installation reel is then coupled to the overhead support cable and a coil of fluid distribution line is loaded on the installation reel. Fluid distribution line is laid along the surface by moving the installation reel along the overhead support cable so as to rotate the installation reel to pay out the fluid distribution line along the surface. Subsequent fluid distribution lines may be laid at substan- tially equal lateral spacings by moving each anchoring device or a portion of each anchoring device prior to laying each subsequent fluid distribution line.

Inventors

ARAGON, FRANK, CASTANON, DAVID M., COLLINS, GREGORY E., CRUZ, JOSE G., GORDON, WILLIAM J., JARAMILLO, RAMON G.

1998-10-13

Patent #US4241953A

Sulfur mine bleedwater reuse system

AI Summary

A novel system is disclosed for utilizing, in the mining of subterranean sulfur by the Frasch process, the heat of water that has accumulated underground above at least a portion of the subterranean sulfur deposit from previ- ous mining operations wherein the underground water is brought to the surface, mixed with fresh heated wa- ter, and returned underground to melt the subterranean sulfur via a return pipeline which is separate and distinct from the pipeline through which the molten sulfur is brought to the surface. In one embodiment the return pipeline is in the same well casing as the sulfur pipeline, but displaced laterally from it. In a second embodiment, the return pipeline extends through a separate well casing.

Inventors

BRADFORD, RANDOL W., CARMICHAEL, MICHAEL H.

1980-12-30

Patent #US4655789A

Phosphoric acid crystallization process

AI Summary

The present invention discloses a new method for ob- taining a crystallized phosphoric acid of relatively high purity starting with conventional phosphoric acid. The new method is based on crystallization of orthophos- phoric acid hemihydrate from the phosphoric acid. Massive nucleation which would lead to the formation of unprocessable masses is avoided in the new method by providing unusually large amounts of fine relatively pure seed crystals of orthophosphoric acid hemihydrate and operating the crystallization process under condi- tions which favor crystal growth on the seed crystals and disfavor the occurrence of secondary nucleation. To prevent the crystallizing magma from reaching a viscosity which would render further processing diffi- cult the present invention provides for recycling raffi- nate in an amount sufficient to maintain the solids con- tent of the crystallizing magma below about 40%.

Inventors

ASTLEY, VIVIAN C., DYER, DAVID M., MOLLERE, PHILLIP D., WIEWIOROWSKI, TADEUSZ K.

1987-04-07

Patent #US3828502A

Modular wall section for buildings

AI Summary

A modular building system including a plurality of up- right panels arranged in edge butting relationship with adjacently oriented panels being connected via an in- terlocking fastener. Each of the individual panels are prefabricated and comprised of first and second spaced, outer skin members having at least one up- right rolled over edge for cooperatively receiving the fastener and for engagingly supporting an end parti- tion, the latter having a generally arcuately shaped cross section which defines an upright, concavely ex- tending recess along the transverse side edge of the panel. An insulating core is disposed interiorly of the outer skin and bondingly secures the inner surface of the partition and the outer skin members. After as- sembly of the prefabricated panels, the recess formed between adjacent panels is also filled with an insulat- ing core material providing a finished wall of substan- tially monolithic construction.

Inventors

CARLSSON, SVEN A.

1974-08-13

Patent #US3911087A

Selective solvent extraction of sulfate impurities from phosphoric acid

AI Summary

While it is known that substantial amounts of the sul- fate and fluorine impurities present in phosphoric acid can be concurrently extracted from the acid by treat- ing it with a water immiscible amine enriched extract- ant, it has now been found that most of the sulfate can be extracted without concurrently extracting large amounts of the fluorine in the acid if a certain combi- nation of treatment conditions is observed. Thus selec- tive sulfate extraction surprisingly occurs when 35 to 44% P.O, acid is treated with a water immiscible ex- tractant containing about | to 3 moles of a tertiary or- ganic amine per mole of sulfate in the acid. With the present invention, virtually all the sulfate present in the acid can be extracted while concurrently extract- ing only 25% of the fluorine. Selective sulfate extrac- tion is an advantage whenever it is desirable to sepa- rately recover the fluorine in the acid in the conven- tional fluorine recovery systems of phosphoric acid manufacturing processes.

Inventors

THORNSBERRY, JR., WILLIS L., VILLAREJOS, MIGUEL O., WIEWIOROWSKI, TADEUSZ K.

1975-10-07

Patent #US4391848A

Method for manufacturing magnet wire

AI Summary

A novel method for manufacturing magnet wire in < continuous process by which coatings of a flowable resin material may be applied concentrically to a mov.

Inventors

HILKER, GEORGE D.

1983-07-05

Patent #US4489130A

Magnet wire

AI Summary

A novel magnet wire or other coated filament compris- ing an elongated filament with a surprisingly concentric and continuous and flexible coating superimposed thereupon. The coating is applied to the desired thick- ness in a single pass.

Inventors

HILKER, GEORGE D.

1984-12-18

Patent #US3965248A

Removal of p' 2'o' 5 'from aluminum fluoride enriched crystallization mother liquors

AI Summary

Aqueous AIF; enriched crystallization mother liquors contaminated with P,O, values and having less than 5% free acidity are treated with a material which pro- vides bismuth ions in the mother liquor in amounts small enough to insure that the Bi/PO, mole ratio re- mains below about 1.05. Under these conditions, the bismuth and P,O, react essentially quantitatively to form a BiPO, precipitate by which the P,O, can be separated from the mother liquor. Bismuth can be re- generated from the BiPO, and recycled for further use in the process. . The invention finds utility in the preparation of AIF, by the reaction of an aluminum ore and P,O, contaminated HF or H,SiF, such as that available as a by-product of wet process phosphoric acid manufacture. The AIF; reaction product is recovered by a crystallization step which, because it is normally only about 70 to 90% efficient, produces a mother liquor containing substantial amounts of AIF. For economic reasons, this mother liquor is usually recycled to the process. However, the P.O, introduced with the HF or H,SiF, reactant appears in the AIF; enriched mother liquor and prevents recycle of the mother liquor for fear of contaminating the AIF; product with P,O;. The bismuth treatment of the present invention permits-the recycle of the mother liquor to recover its AIF; content by reducing the P.O; level, without leaving undesirably high levels of bismuth contaminants in the recycled mother liquor.

Inventors

NUTT, MICHAEL O., WIEWIOROWSKI, TADEUSZ K.

1976-06-22

Patent #US8834785B2

Methods for producing molybdenum/molybdenum disulfide metal articles

AI Summary

A method for producing a metal article according to one embodiment may involve the steps of: Providing a composite metal powder including a substantially homogeneous disper- sion of molybdenum and molybdenum disulfide sub-particles that are fused together to form individual particles of the composite metal powder; and compressing the molybdenum/ molybdenum disulfide composite metal powder under suffi- cient pressure to cause the mixture to behave as a nearly solid mass.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2014-09-16

Patent #US4224206A

Water soluble essentially linear polymer having a plurality of amide, imide and ester groups therein, and a method of making the same and applying the same to substrates

AI Summary

An essentially linear polymer having a plurality of am- ide, imide and ester groups therein, which is the con- densation product of (1) at least one polycarboxylic acid imide-forming reactant, (2) at least one ethylenically unsaturated polycarboxylic acid carboxypyrrolidone- forming reactant, (3) at least one polycarboxylic acid ester-forming reactant, (4) at least one glycoly, (5) at least one other polyfunctional hydroxyl compound, and (6) at least one polyfunctional amino compound having at least one primary amine group thereon. The equiva- lent molar ratio of the functional hydroxyl groups of the glycols and hydroxyl compounds to the functional es- ter-forming carboxyl groups of the acid reactants is from about 1.0 to 1 to about 3.0 to 1. The equivalent molar ratio of the functional imide-forming groups of the acid reactants and the polyfunctional amino reac- tants and the functional carboxypyrrolidone-forming groups of the ethylenically unsaturated acid reactants and the polyfunctional amino reactants to the functional ester-forming carboxyl groups of the acid reactants is from about 0.2 to 1 to about 1.0 to 1. The equivalent molar ratio of said functional imide-forming groups of the acid reactants and the polyfunctional amino reac- tants to the functional carboxypyrrolidone-forming groups of the ethylenically unsaturated acid reactants and the polyfunctional amino reactants are from about 0.5 to 1 to about 3.0 to 1.

Inventors

SOLLNER, GEORGE H.

1980-09-23

Patent #US6468497B1

Method for producing nano-particles of molybdenum oxide

AI Summary

Apparatus for producing nano-particles comprises a furnace defining a vapor region therein. A precipitation conduit having an inlet end and an outlet end is positioned with respect to the furnace so that the inlet end is open to the vapor region. A quench fluid port positioned within the precipitation conduit provides a quench fluid stream to the precipitation conduit to precipitate nano-particles within the precipitation conduit. A product collection apparatus con- nected to the outlet end of the precipitation conduit collects the nano-particles produced within the precipitation conduit.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2002-10-22

Patent #US6334991B1

Purification of sulfur by means of centrifugation

AI Summary

A sulfur purification process is provided. Ash-containing molten sulfur is fed to a centrifuge and subjected to cen- trifugation under controlled conditions at G forces at least about 4,000 times that of gravity. The centrifugation gener- ates a purified sulfur product and a high-solids sulfur waste stream. A solid bowl disc centrifuge provided with conical discs is used to effect the centrifugal separation of solids from liquids at G forces of at least about 4,000. The centrifuge and related piping system are equipped with heating means so as to maintain the temperature of the sulfur above about 250° F. If large volumes of sulfur are to be treated, e.g., 40 or more long tons per hour, a pretreatment step, where the molten sulfur is first subjected to centrifu- gation at G forces at least about 4,000 times that of gravity in one or more nozzle bowl centrifuges, is added in order to obtain satisfactory results. In another aspect of the sulfur purification process, the nozzle bowl centrifuge underflow waste stream is further processed in a cyclone-thickener arrangement to obtain a high-solids sulfur waste stream and a moderate-solids sulfur stream which is then mixed with the low-solids sulfur product stream from the nozzle bowl centrifuge(s), or recycled to the feed of the nozzle bowl centrifuge(s).

Inventors

SMITH, JAY CHARLES, STRICKLAND, ROBIN WHITNEY

2002-01-01

Patent #US3773505A

Copper base alloy containing titanium and antimony

AI Summary

Disclosed are alloy compositions consisting essentially of copper and small amounts of titanium and anti- mony within stated ranges. These compositions have high electrical conductivity, high strength and high ductility as compared with copper alloys containing either titanium or antimony. The disclosed ranges of alloy compositions provide a class of copper-base al- loys having a unique flexibility with regard to electri- cal, mechanical and physical properties. By varying the relative and total amounts of titanium and anti- mony, copper-base alloys having predictable and dif- fering properties may be obtained. Method for the heat treatment and fabrication of the alloys are also disclosed.

Inventors

NESSLAGE, DONALD J., YU, LIN S.

1973-11-20

Patent #US4289532A

Process for the recovery of gold from carbonaceous ores

AI Summary

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Inventors

FISHER, BERNARD M., MATSON, RAPHAEL F.

1981-09-15

Patent #US7622098B2

Method for producing nano-particles of metal oxide

AI Summary

Method for producing nano-particles includes vaporizing a precursor material to produce a vapor, directing the vapor into an isolation chamber, combining a quench fluid in a gaseous state with a quench fluid ina liquid state to form a quench fluid stream, contacting the vapor contained in the isolation cham- ber with the quench fluid stream thereby cooling the vapor to produce the nano-particles in a carrier stream, and removing the nano-particles from the isolation chamber.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2009-11-24

Patent #US4345785A

Dielectric pipe coupling for use in high temperature, corrosive environments

AI Summary

A pipe coupling is disclosed for connecting two pipe- lines of different materials together in a high tempera- ture, corrosive environment which, at the same time, prevents deterioration of the pipelines due to galvanic action. The coupling achieves its purpose by using a relatively rigid insulating material to prevent contact between the pipelines. It also achieves high pullout resistance while maintaining minimum outer dimensions to facilitate its use in all types of wells, such as oil, gas, sulfur, etc.

Inventors

BRADFORD, RANDOL W.

1982-08-24

Patent #US4393809A

Apparatus for manufacturing magnet wire

AI Summary

A novel method and apparatus for manufacturing mag- net wire in a continuous process by which coatings of a flowable resin material may be applied concentrically to a moving elongated filament in thicknesses of about 16 mils or less. The filament can be a bare copper or alumi- num conductor having round or rectangular configura- tion or an insulated conductor upon which a top or an

Inventors

HILKER, GEORGE D.

1983-07-19

Patent #US4123107A

Integrated sulfur mining - sulfuric acid production system

AI Summary

An integrated sulfur mining — sulfuric acid production system is provided wherein a portion of the sulfur pro- duced in the mining operation is consumed in a sulfuric acid manufacturing plant which also generates suffi- cient heat to raise the temperature of the aqueous min- ing fluid to the level required by a mining operation of the type that uses the Frasch sulfur mining technique.

Inventors

BRYANT, JR., RAYMOND G., COCKRELL, CLIFFORD M.

1978-10-31

Patent #US7041152B2

Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

AI Summary

The present invention relates generally to a process for the production of sulfuric acid and liberation of precious metal values from materials containing sulfur through pressure leaching operations. In accordance with various aspects of the present invention, the sulfur-bearing materials may com- prise residues from pressure leaching operations, such as those carried out at medium temperatures. The process of the present invention can be advantageously used to convert such sulfur-bearing materials to sulfuric acid by means of pressure leaching. The sulfuric acid so produced can be used beneficially in other mineral processing operations, for example those at the site where it is produced. Metals, such as precious metals, that are contained within the sulfur- bearing materials advantageously may be recovered from processing products by established precious metals recovery technology.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2006-05-09

Patent #US4734270A

Sulfide treatment to inhibit mercury adsorption onto activated carbon in carbon-in-pulp gold recovery circuits

AI Summary

In this invention sulfide compounds are added to mer- cury and precious metal-containing carbonaceous ore slurries prior to the slurry being processed by a carbon- in-pulp system. The sulfide compound inhibits the mer- cury from being adsorbed onto the activated carbon by reacting with the mercury to form mercuric sulfide and by inhibiting the dissolution of mercury from the ore. The mercuric sulfide precipitate displays no activity toward the activated carbon. The sulfiding procedure is performed with a sufficient amount of sulfide-providing compound to provide at least about 30 times the stoi- chiometric amount of sulfide ions required to react with the mercury in the ore slurry.

Inventors

LIPPS, DELBERT A., TOURO, FREDDIE J.

1988-03-29

Patent #US4722832A

Sulfur recovery process

AI Summary

A process for the recovery of sulfur from sulfur-bearing ores employing an aqueous leaching solution containing calcium monosulfide, calcium hydrosulfide or mixtures of such calcium sulfide species. The sulfur ore is con- tacted in an extraction zone with the aqueous leaching solution under conditions to solubilize sulfur from the ore in the form of calcium polysulfide. Preferably, the extraction step is carried out at an elevated temperature. The loaded leaching solution is recovered from the extraction zone and applied to a sulfur-production zone. Here the loaded solution is contacted with hydrogen sulfide under conditions to react the hydrogen sulfide _ with the calcium polysulfide to produce calcium hydro- sulfide and elemental sulfur. The calcium hydrosulfide solution is recycled for use as leaching solution in the sulfur extraction zone.

Inventors

WEN, JOHN W., WESTON, CHARLES W.

1988-02-02

Patent #US3842192A

Dual insulated magnet wire

AI Summary

\ magnet wire having surprising characteristics com- rising a base insulation of a strip of wire insulating naterial extending longitudinally of the conductor and eing wrapped around the conductor, secured at the eam with an adhesive, and a top coat of resinous ma- erial superimposed on said base insulation. The mag- 1et wire of this construction is able to (1) withstand emperatures for short times greatly in excess of the nelting temperature of the seam adhesive without the yase insulation unwrapping from the conductor, and (2) exhibit improved slip, abrasion resistance, mois- ‘ure resistance, and electrical insulating characteris- tics.

Inventors

DOEHRMAN, CHARLES E., HILKER, GEORGE D., LAUSEN, VERNE H., MOWERY, HAROLD P., SUTTON, MIKE T.

1974-10-15

Patent #US4172879A

Ferric iron removal from aluminum fluoride solutions

AI Summary

A process for the selective separation of ferric iron from an aluminum fluoride aqueous solution containing ferric iron is effected by contacting said solution with an or- ganic extractant phase consisting essentially of a mix- ture of a mono (higher alkyl-substituted phenyl) phos- phoric acid and a di(higher alkyl-substituted phenyl) phosphoric acid dissolved in an inert diluent to thereby transfer the ferric iron to said organic extractant phase. The efficiency of the process is further improved by adjusting the aluminum fluoride aqueous feed solution to a temperature in the range of about 140° F. to about 175° F. prior to contacting it with the organic extractant phase, maintaining the temperature within this range throughout the ferric iron extraction stage or stages, then heating the resulting iron-depieted aqueous raffi- nate to a temperature higher than 195° F., and then crystallizing aluminum fluoride trihydrate out of the raffinate at this higher temperature.

Inventors

MILLER, DAVID J., WIEWIOROWSKI, TADEUSZ K.

1979-10-30

Patent #US4675107A

Tilting pan filters

AI Summary

Tilting filter pans having generally parallel leading and trailing sidewalls which are sloped at an angie to permit increased filtration rates for a predetermined filtering efficiency, and also to permit increased filtering effi- ciency where the feed rate is constant. Drainage of the pans may also be improved. The feed is a slurry from which the liquid is removed, and the filter cake is dumped by rotation of each filter pan at a predeter- mined point of movement of the filter pan along a cycli- cal path.

Inventors

CHAMBERLAIN, DONALD L.

1987-06-23

Patent #US8038760B1

Molybdenum/molybdenum disulfide metal articles and methods for producing same

AI Summary

A method for producing a metal article according to one embodiment may involve the steps of: Providing a composite metal powder including a substantially homogeneous disper- sion of molybdenum and molybdenum disulfide sub-particles that are fused together to form individual particles of the composite metal powder; and compressing the molybdenum/ molybdenum disulfide composite metal powder under suffi- cient pressure to cause the mixture to behave as a nearly solid mass.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2011-10-18

Patent #US6077364A

Copper trolley wire and a method of manufacturing copper trolley wire

AI Summary

Copper trolley wire consisting essentially of at least 99.90% copper and at most 0.10% of a metal selected from the group consisting of silver, cadmium, tellurium, titanium, magnesium, manganese, chromium, zirconium, tin and com- binations thereof, has a minimum tensile strength well exceeding that listed in ASTM Standard B47-95a for copper trolley wire. The copper trolley wire has a uniform fine grain size. The copper trolley wire is manufactured using a process of casting a copper rod of the appropriate composition, hot working or “conforming” the cast rod to reduce its diameter, and then cold working it to form the desired wire by drawing it through one or more dies. Preferably, no annealing step is used.

Inventors

CHANDLER, THOMAS J., CORRADO, JOHN

2000-06-20

Patent #US7575711B2

Apparatus for producing nano-particles of silver

AI Summary

Apparatus for producing silver nano-particle material. The apparatus includes a furnace containing a crucible for vapor- izing a precursor material, as well as, a conduit disposed in perpendicular to the crucible. An inlet end of the conduit is open to the mixing region created between the conduit and the crucible. A process gas supply is also operatively associated with the mixing region.

Inventors

JOHNSON, JR., LOYAL M.

2009-08-18

Patent #US4105741A

Process for recovery of uranium from wet process phosphoric acid

AI Summary

Process for the recovery of uranium from wet process phosphoric acid solution in which an organic extract- ant, containing uranium values and dissolved iron impu- rities and comprising a dialkylphosphoric acid and a trialkylphosphine oxide dissolved in a water immiscible organic solvent, is contacted with a substantially iron- free dilute aqueous phosphoric acid to remove said iron impurities. The removed impurities are bled from the system by feeding the resulting iron-loaded phosphoric acid to a secondary countercurrent uranium extraction operation from which they leave as part of the uranium- depleted acid raffinate. Also, process for recovering uranium in which the extractant, after it has been stripped of uranium values by aqueous ammonium car- bonate, is contacted with a dilute aqueous acid selected from the group consisting of H,SO,, HCl, HNO, and iron-free H,PO, to improve the extraction efficiency of the organic extractant.

Inventors

THORNSBERRY, JR., WILLIS L., WIEWIOROWSKI, TADEUSZ K.

1978-08-08

Patent #US4084997A

Apparatus for monitoring core charging of waterproof communication cable

AI Summary

An apparatus is disclosed for monitoring the charging of a cable core with filling compound by continuously comparing the mutual capacitance of a twisted pair in the core with the predicted capacitance of a twisted pair known to be completely charged with filling com- pound.

Inventors

BISKEBORN, MERLE C.

1978-04-18

Patent #US4059437A

Oxygen-free copper product and process

AI Summary

An improved copper product and process of making it, wherein oxygen-free copper contains small amounts of manganese above normal impurity levels, and has en-

Inventors

NESSLAGE, DONALD JOHN, SHAW, MICHAEL FRANCIS, YU, LIN SHENG

1977-11-22

Patent #US6319604B1

Abrasion resistant coated wire

AI Summary

A coated wire that includes an electrical conductor having an abrasion and varnish craze resistant lubricated coating. The coating is made of a ceramic particulate material dispersed in a polyamideimide binder. Ceramic particulate materials suitable for incorporation in the coatings include silicon nitride (Si,N,), aluminum nitride (AIN), and titanium nitride (TiN).

Inventors

XU, JAMES J.

2001-11-20

Patent #US4605537A

Sulfide as a hypochlorite kill agent

AI Summary

Residual hypochlorite contained in chlorinated slurries of either carbonaceous gold-containing ores or mixtures of carbonaceous and oxide gold-containing ores are reduced by reaction with sulfide ion-providing chemi- cal compounds preferably sodium hydrosulfide, sodium sulfide or hydrogen sulfide. The hypochlorite “kill” step enables subsequent cyanide leach operations to be conducted more efficiently.

Inventors

TOURO, FREDDIE J.

1986-08-12

Patent #US3962402A

Oxidation-leaching of chalcopyrite

AI Summary

1 A method is described for the oxidation-leaching of 0 chalcopyrite concentrates at high temperatures and 6, pressures for the extraction of copper values as copper 7 sulfate in which temperatures are maintained between about 425° and 450°F, oxygen partial pressures of be- tween about 50 and 200 psi are provided, and levels of acidity are permitted to increase above about 50 grams of H,SO, per liter in order to obtain maximum

Inventors

TOURO, FREDDIE J.

1976-06-08

Patent #US6914093B2

Polyamideimide composition

AI Summary

Polyamideimide coating compositions for magnet wire which exhibit solvent or varnish-induced craze resistance. The polyamideimide compositions include a compound selected from the group consisting of diacid compounds, trimellitic anhydrides, benzophenonetetracarcoxylic anhy- drides and mixtures thereof, a diisocyanate compound, dihy- droxyl compound, a trihydroxyl compound, a fluoropolymer, and a mineral filler.

Inventors

XU, JAMES J.

2005-07-05

Patent #US4657559A

Process for seed crystal preparation for phosphoric acid crystallization

AI Summary

s, vol. 80, No. 26, Jul. 1, 1974, p. 69, Abstract No. 147419d, Columbus, Ohio US.

Inventors

ASTLEY, VIVIAN C., MOLLERE, PHILLIP D., TARAVELLA, JODY J.

1987-04-14

Patent #US4126551A

Method and apparatus for handling solvent extraction crud

AI Summary

An apparatus and method are provided for handling the

Inventors

COGNEVICH, DIMITRY J.

1978-11-21

Patent #US6213995B1

Flexible tubing with braided signal transmission elements

AI Summary

A flexible tubing includes a wall provided with a plurality of braided elements forming a braid within the wall of the tube. The braided elements include one or more signal transmit- ting elements and one or more metallic or non-metallic structural elements having structural properties different from the signal transmitting elements. The signal transmit- ting elements may be conductive wires, e.g., a sensor conductor or thermocouple, or optical fibers. Additionally, a combination of conductive wires and optical fibers may be provided within the braid. The structural elements prefer- ably provide a degree of torsional stiffness, kink resistance, or luminal rigidity to the catheter which is different than would otherwise be provided solely with one or more signal transmitting elements. The tubing wall is preferably a cross- linking polymer, such as polyimide matrix. In manufacture of the tubing, one or more layers of the polymer are coated on a mandrel and permitted to cure to form an inner layer of the tubing. The braid is then woven about the inner layer. Then, one or more layers of the polymer are coated over the braid and inner layer and permitted to cure to form an outer layer of the tubing which preferably forms a cross-linked and adhesive bond to the inner layer and provides a rela- tively homogenous structure.

Inventors

DANIEL, STEVIE, STEEN, BRETT

2001-04-10

Patent #US8389129B2

Low-friction surface coatings and methods for producing same

AI Summary

A coated article system includes a substrate and a surface coating on the substrate. The surface coating is formed by depositing individual particles of a composite metal powder with sufficient energy to cause the composite metal powder to bond with the substrate and form the surface coating. The composite metal powder includes a substantially homoge- neous dispersion of molybdenum and molybdenum disulfide sub-particles that are fused together to form the individual particles of the composite metal powder.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2013-03-05

Patent #US9162424B2

Low-friction surface coatings and methods for producing same

AI Summary

A coated article system includes a substrate and a surface coating on the substrate. The surface coating is formed by depositing individual particles of a composite metal powder with sufficient energy to cause the composite metal powder to bond with the substrate and form the surface coating. The composite metal powder includes a substantially homoge- neous dispersion of molybdenum and molybdenum disulfide sub-particles that are fused together to form the individual particles of the composite metal powder.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2015-10-20

Patent #US6890371B2

Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

AI Summary

The present invention relates generally to a process for the production of sulfuric acid and liberation of precious metal values from materials containing sulfur through pressure leaching operations. In accordance with various aspects of the present invention, the sulfur-bearing materials may com- prise residues from pressure leaching operations, such as those carried out at medium temperatures. The process of the present invention can be advantageously used to convert such sulfur-bearing materials to sulfuric acid by means of pressure leaching. The sulfuric acid so produced can be used beneficially in other mineral processing operations, for example those at the site where it is produced. Metals, such as precious metals, that are contained within the sulfur- bearing materials advantageously may be recovered from processing products by established precious metals recovery technology.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2005-05-10

Patent #US7384448B2

Method and apparatus for producing nano-particles of silver

AI Summary

Apparatus for producing silver nano-particle material com- prises a furnace and a crucible positioned within the furnace, the crucible containing a quantity of precursor material, the furnace heating the quantity of precursor material contained in the crucible to vaporize the precursor material. A process gas supply operatively associated with the furnace provides a process gas to an interior region of the furnace. A conduit is operatively associated with the furnace so that an inlet end of the conduit is open to the interior region of the furnace. A particle separator system is operatively associated with an outlet end of the conduit. A pump operatively associated with an outlet end of the particle separator system causes a mixture of process gas and vaporized precursor material contained in the interior region of the furnace to be drawn into the inlet end of the conduit, the process gas cooling the vaporized precursor material to precipitate the silver nano- particle material in a carrier stream, the particle separator system separating the silver nano-particle material from the carrier stream.

Inventors

JOHNSON, JR., LOYAL M.

2008-06-10

Patent #US6451089B1

Process for direct electrowinning of copper

AI Summary

A system and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent extraction techniques or apparatus. A process for recovering copper from a copper- containing ore generally includes the steps of providing a feed stream containing communicated copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, con- ditioning the copper-containing solution through one or more physical or chemical conditional steps, and electow- inning copper directly from the copper-containing solution, without subjecting the copper-containing solution to solvent extraction.

Inventors

BAUGHMAN, DAVID R., BEMELMANS, CHRISTEL M. A., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2002-09-17

Patent #US4754803A

Manufacturing copper rod by casting, hot rolling and chemically shaving and pickling

AI Summary

A process for producing copper rod having an im- proved surface smoothness and substantially no surface oxides, which rod is suitable for drawing or rolling into wire, is disclosed. The process comprises the steps of forming a bath of molten pure copper, casting the mol- ten copper into a cast bar, conditioning the bar for hot-rolling, hot-rolling the bar to form a hot-rolled rod, cooling the hot-rolled rod and chemically shaving and pickling the hot-rolled rod. The chemical shaving and pickling step is performed with a solution containing controlled concentrations of sulfuric acid and hydrogen peroxide. Both the solution and the rod are maintained at elevated temperatures and the duration of the reac- tion is controlled. The interrelated process variables are regulated so that substantially all of the surface oxides and a desired amount of copper are removed from the surface of the hot-rolled rod.

Inventors

ESCOBAR, JR., BENJAMIN A., FARRARO, JOHN T., MONTES, GILBERT, WAHNER, LESTER J.

1988-07-05

Patent #US5804151A

Process for autoclaving molybdenum disulfide

AI Summary

A method for producing MoO, from MoS,. MoS, is com- bined with water to form a slurry which is then combined with at least one oxygen-containing oxidizing gas in a reaction chamber in order to initiate oxidization and con- version of MoS, into MoO . The oxidization and conversion of MoS, into MoO, is terminated before complete conver- sion of MoS, to MoO, takes place in order to generate a solid reaction product comprising MoO, and unreacted MoS, in combination with a residual liquid product com- prising dissolved Mo therein. The oxidization and conver- sion process may be terminated when about 70-95% by weight MoS, has been converted to MoO . Thereafter, the solid reaction product is separated from the residual liquid product and the residual liquid product combined with at least one extractant in order to generate a liquid fraction containing dissolved Mo. The liquid fraction containing dissolved Mo is then transferred back to the reaction cham- ber so that the dissolved Mo is combined with additional incoming supplies of MoS,. Unreacted MoS, is removed from the solid reaction product and transferred back to the reaction chamber also for combination with additional incoming supplies of MoS,.

Inventors

HILL, LEONARD N., SWEETSER, WILLIAM H.

1998-09-08

Patent #US7524353B2

Densified molybdenum metal powder and method for producing same

AI Summary

Densified molybdenum metal powder and method for pro- ducing same. Densified molybdenum powder has substan- tially generally spherical particles, surface area to mass ratio of no more than about 0.5 m?/g as determined by BET analy- sis, and a flowability greater than about 32 s/50g as deter- mined by a Hall Flowmeter. A method for producing densi- fied molybdenum metal powder includes providing a supply of precursor material of molybdenum metal powder particles reduced from ammonium molybdate; providing a supply of reducing gas; densifying the precursor material in the pres- ence of the reducing gas; and producing the densified molyb- denum metal powder.

Inventors

JHA, SUNIL CHANDRA, JOHNSON, JR., LOYAL M., THOMPSON, PATRICK ANSEL

2009-04-28

Patent #US6423238B2

Method for separating entrained aqueous from loaded organic in an SX process

AI Summary

Amethod for separating a lighter liquid from a heavier liquid according to one embodiment of the present invention may comprise the following steps. First, the lighter liquid and the heavier liquid may be introduced into a settling tank and thereafter allowed to form a first upper liquid fraction and a first lower liquid fraction. The first upper liquid fraction may comprise the lighter liquid with residual amounts of the heavier liquid contained therein. The first upper liquid fraction is then decanted into a trough. The first upper liquid fraction decanted into the trough is then allowed to form a second upper liquid fraction and a second lower liquid fraction. The second lower liquid fraction may comprise the heavier liquid with residual amounts of the lighter liquid contained therein. The second lower liquid fraction is there- after drained from the trough and allowed to form a third upper liquid fraction and a third lower liquid fraction.

Inventors

HERNANDEZ, RAMON A.

2002-07-23

Patent #US3961908A

Autoclave system for leaching sulfide concentrates

AI Summary

A method and apparatus for high temperature-high pressure acid leaching of sulfide ores is described. The apparatus includes an autoclave having a plurality of pressurized compartments and a water removing-heat removing condenser. Means are described for the in- troduction of a neutralizing agent directly into the au- toclave in order to maintain the acidity of the slurry at a level where substantially all of the iron present in the slurry will form an insoluble iron oxide precipitate. Means are described for removing the gaseous prod- ucts resulting from the introduction of the neutralizing agent while avoiding contamination thereby of a sub- stantial portion of the oxygen.

Inventors

TOURO, FREDDIE J.

1976-06-08

Patent #US6258187B1

Copper trolley wire and a method of manufacturing copper trolley wire

AI Summary

Copper trolley wire consisting essentially of at least 99.90% copper and at most 0.10% of a metal selected from the group consisting of silver, cadmium, tellurium, titanium, magnesium, manganese, chromium, zirconium, tin and com- binations thereof, has a minimum tensile strength well exceeding that listed in ASTM Standard B47-95a for copper trolley wire. The copper trolley wire has a uniform fine grain size. The copper trolley wire is manufactured using a process of casting a copper rod of the appropriate composition, hot working or “conforming” the cast rod to reduce its diameter, and then cold working it to form the desired wire by drawing it through one or more dies. Preferably, no annealing step is used.

Inventors

CHANDLER, THOMAS J., CORRADO, JOHN

2001-07-10

Patent #US4919715A

Treating refractory gold ores via oxygen-enriched roasting

AI Summary

Gold-containing ores, having refractory sulfidic matter or a combination of refractory sulfidic matter and re- fractory carbonaceous matter, are processed to recover their gold values. The process uses an ore roasting pro- cedure that utilizes a two-state, fluidized bed roaster. The process also employs a pure oxygen atmosphere during roasting. A carbon-in-leach step is desirably used to extract gold values from the roasted ore.

Inventors

MCCORD, THOMAS H., O'NEIL, GREGORY R., SMITH, JAY C.

1990-04-24

Patent #US6060162A

Pulsed voltage surge resistant magnet wire

AI Summary

A pulsed voltage surge resistant magnet wire comprising a conductor, a continuous and concentric and flexible uniform coat of base insulation material superimposed on the con- ductor. An essentially continuous and concentric and uni- form pulsed voltage surge shield overlaying the coat of base insulation material. The shield has therein an effective amount of a particulate material. The shield is superimposed on the coat of base insulation material, and has a continuous and concentric and flexible and uniform top coat of insula- tion material superimposed thereon.

Inventors

BARTA, DONALD J., YIN, WEIJUN

2000-05-09

Patent #US6893482B2

Method for improving metals recovery using high temperature pressure leaching

AI Summary

The present invention is directed to a system for recovering metal values from metal-bearing materials. During a reac- tive process, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive pro- cess or otherwise encapsulate the metal value, thereby reducing the amount of desired metal values partially or completely encapsulated by such material. The seeding agent may be generated in a number of ways, including the recycling of residue or the introduction of foreign sub- stances. Systems embodying aspects of the present invention may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, zinc, rhenium, uranium, rare earth metals, and platinum group metals from any metal-bearing material, such as ores and concentrates.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., SCHMIDT, ROLAND, THOMPSON, PHILIP

2005-05-17

Patent #US3685147A

Method of making coaxial cable

AI Summary

An air dielectric coaxial cable includes a thin cylindri- cal center conductor supported by a concentric plastic insulating layer having aplastic helical web thereabout. In fabricating the cable, a tubular center conductor is formed from a thin metallic foil or tape and is passed continuously from the tube former through a stationary annular confining zone into a ro- tary die where the requisite insulating layer and web are extruded around this conductor.

Inventors

DUMIRE, LEO G., NEVIN, JOHN J.

1972-08-22

Patent #US8038855B2

Anode structure for copper electrowinning

AI Summary

An electrode for use in producing copper in either a conven- tional electrowinning cell or the direct electrowinning cell is provided. The electrode includes a hanger bar and an elec- trode body coupled with the hanger bar. The electrode body includes at least one conductor rod having a core and an outer layer surrounding the core and a substrate coupled with the conductor rod.

Inventors

CLAYTON, CASEY J., ROBINSON, TIMOTHY G., SANDOVAL, SCOT P., ZANOTTI, CHRISTOPHER JOHN, ZANOTTI, MARTIN KIM

2011-10-18

Patent #US6315899B1

Apparatus for separating entrained aqueous from loaded organic in an SX process

AI Summary

Apparatus for separating a lighter liquid and a heavier liquid may comprise a settling tank sized to receive a mixture of the lighter liquid and the heavier liquid. The settling tank permits the formation of a first upper liquid fraction and a first lower liquid fraction. A weir positioned adjacent the settling tank allows the first upper liquid fraction to flow over the weir. A trough positioned adjacent the weir receives the first upper liquid fraction and effects a secondary sepa- ration of the lighter and heavier liquids by allowing the first upper liquid fraction to form a second upper liquid fraction and a second lower liquid fraction. A first drain having an elevated inlet end is positioned in the trough so that the first drain removes the second upper liquid fraction from said trough. A second drain positioned in the trough has an inlet end that is positioned below the inlet end of the first drain so that the second drain removes the second lower liquid fraction from said trough.

Inventors

HERNANDEZ, RAMON A.

2001-11-13

Patent #US3804653A

adhesive

AI Summary

The disclosure relates to a process for preparing an adhesive, a novel adhesive, a novel polymeric material and a process for preparing extremely stable emul- sions. The process of the invention comprises subject- ing an aqueous mixture of starch or protein, or at least two insoluble substances, and grinding media to an ag- itation in the presence of a pigment, if desired, and then removing the grinding media therefrom. The treated starch or protein may be further reacted with a polymerizable monomer or preformed polymer to form the novel polymeric material. A superior adhe- sive, which finds particular application in coating base materials, as paper, is obtained. Stable emulsions formed are particularly useful in pharmaceutical and food applications.

Inventors

DREXEL, JR., RICHARD JACOB, MORRIS, HORTON HAROLD, TURNER, KENNETH LAMAR

1974-04-16

Patent #US5330557A

Fluid bed reduction to produce flowable molybdenum metal

AI Summary

Flowable molybdenum metal powder of controlled particle size distribution is produced by stage-wise re- duction wherein, in a first stage, molybdenum trioxide feed is preferably introduced at depth in a fluid bed of molybdenum dioxide and is reduced in an atmosphere containing at least 50% hydrogen, by volume, at a tem- perature between 560° and 620° C. and the product molybdenum dioxide is then reduced to molybdenum metal in a second stage fluid bed at a temperature be- tween 1025° C. and 1075° C. in an atmosphere contain- ing at least 50% hydrogen employed in amount of at least 2.75 times stoichiometric while controlling the off-gas dewpoint to be at least 21° C. and controlling the off-gas hydrogen:water vapor ratio so as not to exceed 24:1 and removing the product spheroidal molybdenum metal particles from the bottom of the bed to prevent collapse of the bed.

Inventors

MAY, WILLIAM A.

1994-07-19

Patent #US7470307B2

Metal powders and methods for producing the same

AI Summary

A method for producing a metal powder product involves: Providing a supply of a precursor metal powder; combining the precursor metal powder with a liquid to form a slurry; feeding the slurry into a pulsating stream of hot gas; and recovering the metal powder product.

Inventors

LARINK, JR., STEVEN C.

2008-12-30

Patent #US9103024B2

Sodium / molybdenum metal articles and powder compacts

AI Summary

A metal article formed by compacting a sodium/molybdenum composite metal powder under sufficient pressure to form a preformed article; placing the preformed article in a sealed container; raising the temperature of the sealed container to a temperature that is lower than a sintering temperature of molybdenum; and subjecting the sealed container to an isos- tatic pressure for a time sufficient to increase the density of the metal article to at least about 90% of theoretical density.

Inventors

COLE, JAMES, COX, CARL, HONECKER, DAVE, MICHALUK, CHRISTOPHER

2015-08-11

Patent #US3713593A

Fine media milling process

AI Summary

The invention relates to a process for the fine media milling of microorganisms or crystalline organic materials. In our process, a liquid dispersion of a microorganism or- crystalline organic material is agitated in the presence of grinding media.

Inventors

MCMAHAN, J. RAYMOND, MORRIS, HORTON HAROLD, ROGERS, WILLIAM I.

1973-01-30

Patent #US7785390B2

Molybdenum metal powder and production thereof

AI Summary

Molybdenum metal powder has surface-area-to-mass-ratios in a range of between about 1.0 meters?/gram (m7/g) and about 3.0 m?/g, as determined by BET analysis, in combina- tion with a particle size wherein at least 30% of the particles are larger than a size +100 standard Tyler mesh sieve. A method for producing molybdenum metal powder includes providing a supply of ammonium molybdate and a reducing gas; causing an exothermic reaction between the ammonium molybdate and the reducing gas at a first temperature to produce an intermediate reaction product and a supplemental reducing gas; causing an endothermic reaction between the intermediate reaction product and the reducing gas at a final temperature to produce the molybdenum metal powder.

Inventors

COX, CARL, JHA, SUNIL CHANDRA, JOHNSON, JR., LOYAL M., THOMPSON, PATRICK ANSEL

2010-08-31

Patent #US5433925A

Method and apparatus for removing sulfur dioxide from gas streams

AI Summary

A process and apparatus for removing SO2 from low- volume gas streams containing high concentrations of SO includes a tank scrubber containing an aqueous SO absorbent and an impeller. The tank scrubber has an unpartitioned vessel. The impeller includes a vertical rotating shaft having an upper and lower impeller. The lower impeller serves to agitate the SO2 absorbent. The upper impeller includes a shroud thereby directing the absorbent and gas outwardly toward the wall of the scrubber. The gas is injected into the absorbent at a point below the shrouded impeller. The shroud pre- vents gas bypass and thereby promotes gas-liquid mix- ing and, consequently, markedly improves SO2 removal efficiency.

Inventors

MCCORD, THOMAS H., SMITH, JAY C., STRICKLAND, ROBIN W.

1995-07-18

Patent #US8956586B2

Friction materials and methods of producing same

AI Summary

A friction material composition may include an abrasive, a filler, a binder, and a spherical molybdenum disulfide powder. The spherical molybdenum disulfide powder is made up of molybdenum disulfide sub-particles that are agglomerated together to form individual, substantially spherically-shaped agglomerated particles of at least about 90% by weight molybdenum disulfide.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2015-02-17

Patent #US7063821B2

Apparatus for production of molybdenum carbide

AI Summary

Apparatus for producing molybdenum carbide from a pre- cursor material includes a supply of process gas and a furnace defining at least a first heating zone and a second heating zone. The furnace heats the first heating zone to a first temperature and the second heating zone to a second temperature. The second temperature is at least about 100° C. hotter than the first temperature. A transfer system operatively associated with the furnace and the supply of process gas moves the precursor material through the first and second heating zones and in the presence of the process gas to form molybdenum carbide (MoC and Mo.C).

Inventors

KHAN, MOHAMED H., TAUBE, JOEL A.

2006-06-20

Patent #US8043406B2

Molybdenum metal powder

AI Summary

4 Claims, 34 Drawing Sheets

Inventors

JHA, SUNIL CHANDRA, JOHNSON, JR., LOYAL M., THOMPSON, PATRICK ANSEL

2011-10-25

Patent #US3744290A

Production of intermittently fluted tubes

AI Summary

. fluted mandrel is movable axially within the tube yhich is drawn through a fluting die, the ridges of the luted mandrel being aligned with the valleys formed by he fluted die. In one axial position of the mandrel, yhere it is fully within the die, its ridges and valleys are adially opposite the valleys and ridges, respectively, of he die, whereby the tube is fluted internally and exter- ally as it is drawn through the die. However, when the nandrel is withdrawn axially from this fluting position nd the tube moves through the die, the tube-fluting peration is interrupted and the die merely forms shal- ow impressions in the external surface of the tube.

Inventors

SIROIS, BENOIT J.

1973-07-10

Patent #US4045211A

Method for increasing radiant heat transfer from hot gases

AI Summary

Radiant heat transfer is increased by introducing to hot gases, such as those normally present in furnaces, a material which provides finely sized particles therein of the type which increase the emissivity and luminosity of the gases. The material is introduced separately from the furnace fuel and preferably downstream of the flame produced by the burning of the fuel. In one embodi- ment, an unsaturated gaseous hydrocarbon such as acet- ylene is introduced into the furnace at a plurality of locations downstream of the flame. The unsaturated hydrocarbon exothermically cracks in the furnace to produce hydrogen and carbon particles in the furnace hot gases. The carbon particles increase the emissivity and luminosity of the hot gases and thus their radiant heat transfer to the furnace charge. The exothermic cracking reaction and the combustion of the hydrogen produced during cracking add heat to the hot gases which maintains their temperature at desired levels despite the increased radiant heat transfer from the gases. By varying the locations where the hydrocarbon is introduced, as little or as much of the furnace hot gases as desired can be made luminous. Under preferred conditions, radiant heat transfer to the furnace charge can be increased 20% or more by the method of the invention.

Inventors

POWERS, RICHARD MATHER

1977-08-30

Patent #US7749463B2

Apparatus for producing nano-particles of molybdenum oxide

AI Summary

Apparatus for producing nano-particles comprises a furnace defining a vapor region therein. A precipitation conduit hav- ing an inlet end and an outlet end is positioned with respect to the furnace so that the inlet end is open to the vapor region. A quench fluid port positioned within the precipitation conduit provides a quench fluid stream to the precipitation conduit to precipitate nano-particles within the precipitation conduit. A product collection apparatus connected to the outlet end of the precipitation conduit collects the nano-particles produced within the precipitation conduit.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2010-07-06

Patent #US4856731A

Traverse assembly for use on tapered flange spools

AI Summary

A device for winding a strand onto a spool having at least one tapered flange.comprising a strand guide and a mounting arm. The strand guide is pivotably connected to one end of the mounting arm and the strand guide is pivotable about this end. A traverse beam longitudi- nally travels along an axis parallel to the spool axis, the second end of the mounting arm being securely con- nected to the traverse. The strand guide is securely connected to one end of a lever. A wand is securely fastened to the other end of the lever. A simulated flange is dimensioned to correspond to the angular di- mensions of the tapered flange on the spool, and the simulated flange is positioned such that the wand will contact the simulated flange simultaneous to the strand contacting the spool’s tapered flange. A switch is lo- cated on the lever, the switch being activated upon the wand contacting the simulated flange. The switch con- trols a drive assembly which dictates the direction of travel of the traverse.

Inventors

ASPY, ROBERT O., HAYES, FRANK M., RORICK, DONALD E.

1989-08-15

Patent #US5114699A

Spent alkylation acid treatment process

AI Summary

An improved process for treating spent alkylation acid to recover a sulfuric acid product suitable for use in wet | process phosphoric plants particularly those which ; recover uranium as a byproduct. The process utilizes 5 heat and agitation to polymerize the liquid. soluble

Inventors

ASTLEY, VIVIAN C., MURRAY, MICHAEL A., TARAVELLA, JODY J., WIEWIOROWSKI, TADEUSZ K.

1992-05-19

Patent #US4659622A

Essentially linear polymer having a plurality of amide, imide and ester groups therein, a tinnable and solderable magnet wire, and a method of making the same

AI Summary

An essentially linear resin having a plurality of amide, imide and ester groups therein comprising the conden- sation product of at least one polycarboxylic acid five member ring-forming reactant, at least one. ethyleni- cally unsaturated polycarboxylic acid five or six mem- ber ring lactam-forming reactant, at least one polyfunc- tional hydroxy compound, at least one difunctional amino five or six member ring forming reactant, at least one polycarboxylic acid reactant having no more than two carboxylic acid ester forming radicals, and at least one polycarboxylic acid reactant having two or more carboxylic acid ester forming radicals with at least two of the radicals in the 1,2 position relative to each other. The method of forming a solution of a prepolymer having a plurality of amide, imide and ester groups therein in cresylic acid or glycol ether solvents and reacting the same with at least one ethylenically unsatu- rated polycarboxylic acid five or six member ring form- ing reactant at elevated temperatures. A tinnable and solderable magnet wire having a thin, flexible, tough, thermally stable continuous coating on a conductor which also has a high degree of thermolability (remov- ability in a solder bath) in a solder bath.

Inventors

BARTA, DONALD J., SOLLNER, GEORGE H.

1987-04-21

Patent #US7132005B2

Molybdenum metal

AI Summary

Novel forms of molybdenum metal, and apparatus and methods for production thereof. Novel forms of molybde- num metal are preferably characterized by a surface area of substantially 2.5 m?/g. Novel forms of molybdenum metal are also preferably characterized by a relatively uniform size.

Inventors

KHAN, MOHAMED H., TAUBE, JOEL A.

2006-11-07

Patent #US4157847A

Method and apparatus for utilizing accumulated underground water in the mining of subterranean sulphur

AI Summary

Novel method and apparatus for utilizing, in the mining of subterranean sulphur by the Frasch process, the heat of water that has accumulated underground above at least a part of said subterranean sulphur from previous mining operations comprising subterraneanly recycling said accumulated underground water downwardly to contact and heat additional solid subterranean sulphur. In one embodiment further heat is added to the accumu- lated underground water. For example, pressurized, superheated drive water generated above ground is subterraneanly commingled with said accumulated un- derground water in a jet pump or ejector to further heat it and to recycle it subterraneanly.

Inventors

BOUIS, ROBERT L., GABRIEL, JOHN L., LATIOLAIS, RENE L., WILLIAMS, R. L.

1979-06-12

Patent #US4849465A

Aliphatic isocyanurate containing polyester resins, method for making the same, magnet wire coated therewith and an electromagnetic device

AI Summary

A composition of matter comprising the reaction prod- uct of a cyanuric acid reactant, an aliphatic vicinal diol reactant and a carboxyl reactant, a method for produc-

Inventors

KNERR, ALLAN R., LINDVAY, MICHAEL W., SOLLNER, GEORGE H.

1989-07-18

Patent #US3821640A

Method and apparatus for accelerated testing of power cable insulation for susceptibility to treeing

AI Summary

Extruded power cable insulation is tested for suscepti- bility to gradual electro-chemical deterioration (elec- tro-chemical treeing) by wetting at least a portion of the insulation of a sample of the cable with a selected liquid wetting agent and applying a high frequency, high voltage alternating current signal across the wet- _ted portion of the insulation. During testing the con- ductor of the test sample may be heated to approxi- mately its normal operating temperature. The cable sample may also be mechanically stressed during the test if desired. Trees develop in considerably less time than is required under normal operating conditions.

Inventors

BAHDER G US, KATZ C US

1974-06-28

Patent #US4577804A

Wet grinding phosphate rock in an acidic slurry

AI Summary

Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment. A method for moni- toring and controlling grinding ball consumption is provided in which acid-neutralizing particulate iron contained in the acidic slurry is measured and corre- lated to control curves, which relate particulate iron concentration to slurry pH and slurry pH to the rate grinding ball consumption. If the measured particulate iron concentration equates to an unacceptable ball cor- rosion rate, the equilibrium of the slurry pH and partic- ulate iron concentration can be varied to maintain a predictable ball consumption. When making the slurry, waste water from other steps of the wet process manu- facture of phosphoric acid can be used as part of an acidic diluting medium.

Inventors

ASTLEY, VIVIAN C., MILAN, RUDOLPH R., TARAVELLA, JODY J.

1986-03-25

Patent #US8206485B2

Metal powders and methods for producing the same

AI Summary

A method for producing a metal powder product involves: Providing a supply of a precursor metal powder; combining the precursor metal powder with a liquid to form a slurry; feeding the slurry into a pulsating stream of hot gas; and recovering the metal powder product.

Inventors

LARINK, JR., STEVEN C.

2012-06-26

Patent #US3781462A

Paper-insulated electrical conductor and method of making same

AI Summary

Interposed between the conductor and the helical or longitudinal wrapping of paper insulation is a layer of self-setting, heat sealable emulsion having adhesive Properties and which is inert, water soluble and free of metal. The emulsion is absorbed by the innermost lay of the paper and causes it to adhere to the next outer paper lay, while the outer portion of the Paper which is not exposed to the saturated portion remains loosely formed around the conductor. Upon drying of the Paper insulation, the solid portion of the emulsion re- mains as a film on the periphery of the conductor and the innermost surface of the Paper.

Inventors

FEDER, CHARLES, SANTOS, ADRIAN Y.

1973-12-25

Patent #US6663689B2

Process for direct electrowinning of copper

AI Summary

A system and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent extraction techniques or apparatus. A process for recovering copper from a copper- containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, condi- tioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution, without subjecting the copper-containing solution to solvent extrac- tion.

Inventors

BAUGHMAN, DAVID R., BEMELMANS, CHRISTEL M. A., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2003-12-16

Patent #US3710440A

Manufacture of coaxial cable

AI Summary

A metal tape is advanced through a zone where it is formed into a tube surrounding the cable core passing through this zone, the core comprising the inner con- ductor and longitudinally spaced turns of solid insula- tion for spacing this conductor from the tube con- Stituting the outer conductor. A foam-forming com- position is coated on at least one of said core and tape in advance of the tube-forming zone and is expanded in the formed tube to provide an insulating foam filling the spaces between the turns of the solid insula- tion.

Inventors

DUMIRE, LEO G., NEVIN, JOHN J.

1973-01-16

Patent #US6451088B1

Method for improving metals recovery using high temperature leaching

AI Summary

The present invention is directed to a process for recovering metal values from metal-bearing materials. During a reac- tive process, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive pro- cess or otherwise encapsulate the metal value, thereby reducing the amount of desired metal values partially or completely encapsulated by such material. The seeding agent may be generated in a number of ways, including the recycling of residue or the introduction of foreign sub- stances. Processes embodying aspects of the present inven- tion may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, zinc, rhenium, uranium, rare earth metals, and platinum group metals from any metal-bearing material, such as ores and concentrates.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., SCHMIDT, ROLAND, THOMPSON, PHILIP

2002-09-17

Patent #US7191603B2

Gaseous fluid production apparatus and method

AI Summary

Gaseous fluid production apparatus according to one embodiment of the invention includes a fluid container containing fluid in substantially the liquid state. A first fluid line is connected to the fluid container so that it receives from the fluid container a first fluid stream substantially in the liquid state. A gas generator is also connected to the fluid container so that it receives from the fluid container a second fluid stream substantially in the liquid state. A product discharge manifold is connected to the gas generator and to the first fluid line. A control means is operatively associated with the first fluid line and the product discharge manifold for controlling at least one parameter of the first fluid stream. A second control means is operatively associated with the gas generator and the product discharge manifold for con- trolling at least one parameter of the second fluid stream.

Inventors

TAUBE, JOEL A.

2007-03-20

Patent #US3975497A

Enhanced selectivity in the separation of nickel and cobalt from ammoniacal solutions

AI Summary

An ammoniacal solution containing nickel and cobalt dissolved as nickel-ammonia complexes and cobalt- ammonia complexes is treated with a material capable of providing free ammonia in the solution, such as gas- cous ammonia or aqueous ammonia, in order to in- crease the proportion of higher nickel-ammonia com- plexes to lower nickel-ammonia complexes in solution until at least about 85% of the dissolved nickel is in the torm of higher nickel-ammonia complexes, i.c., complexes in which the number of NH; molccules is greater than 3. The attainment of this high concentra- tion of higher nickel-ammonia complexes is readily determined by various analytical procedures such as, for example, free. ammonia clectrode measurements and spectrophotometer measurements. The solution is then treated with a sulfiding agent in an amount suffi- cient to sclectively precipitate out the dissolved cobalt as cobalt sulfide. The resulting slurry is separated into a nickel-enriched liquid fraction and a cobalt-enriched solids fraction. Surprisingly, when the dissolved nickel is present as a higher ammonia complex, less tends to undesirably coprecipitate with the cobalt during sul- fiding. The highly desirable result is a precipitate con- taining up to 50% more cobalt and 20% less nickel, and a mother liquor more enriched in nickel, than normally obtained in a_ conventional — selective sulfiding.

Inventors

MILLER, DAVID J., WIEWIOROWSKI, TADEUSZ K.

1976-08-17

Patent #US5110455A

Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation

AI Summary

The present invention involves a method for separating copper sulfide from rimmed iron sulfide by flotation. Prior to flotation, a slurry containing the sulfides is oxidized and conditioned to achieve a pH greater than pH 9. Thereafter, the slurry is subjected to a froth floa- tation process by which a copper sulfide, such as chal- copyrite, concentrate is recovered.

Inventors

HUCH, RICHARD O.

1992-05-05

Patent #US5890889A

Shaft furnace

AI Summary

An improved hearth section for a shaft furnace may com- prise a plurality of splines mounted to the side wall of the hearth section in spaced-apart circumferential positions so that each of the splines extends radially inward from the side-wall and into the interior of the hearth section. The floor of the hearth section may include a plurality of stand-offs positioned in generally spaced-apart relation and that extend upward from the floor and into the interior of the hearth section.

Inventors

BARSTOW, RICHARD A.

1999-04-06

Patent #US5147617A

Process for recovery of gold from gold ores using a complexing pretreatment and sulfurous acid leaching

AI Summary

A process for recovering gold from gold-bearing ores includes the steps of forming a slurry of ground ore and treating the ore with an oxidizing and complexing agent such as hydrogen sulfide or a sulfide salt. A chelating agent, SOo, air, and an anion exchange resin are added to the slurry to subject the ore to a simultaneous sulfu- rous acid leaching and anion exchange resin adsorption step in the presence of dissolved oxygen. The gold transfers to the resin which is then removed from the slurry. The gold is then separted from the resin by chemical stripping. Alternately, the ground ore is blended with an oxidizing agent such as calcium hypo- chlorite and then with a gold-complexing agent. The ore blend is slurried in water, with the addition of a chelating agent, SO, air and an anion exchange resin to effect the leaching and adsorption of gold values.

Inventors

TOURO, FREDDIE J., WIEWIOROWSKI, TADEUSZ K.

1992-09-15

Patent #US4946520A

Copper rod manufactured by casting, hot rolling and chemically shaving and pickling

AI Summary

Copper rod has an improved surface smoothness and substantially no surface oxides, which rod is suitable for drawing or rolling into wire. The copper rod is pro- duced by a process which comprises the steps of form- ing a bath of molten pure copper, casting the molten copper into a cast bar, conditioning the bar for hot-roll- ing, hot-rolling the bar to forma hot-rolled rod, cooling

Inventors

ESCOBAR, JR., BENJAMIN A., FARRARO, JOHN T., MONTES, GILBERT, WAHNER, LESTER J.

1990-08-07

Patent #US4521173A

Apparatus for manufacturing magnet wire

AI Summary

A novel apparatus for manufacturing magnet wire in a continuous process by which coatings of a flowable resin material may be applied concentrically to a mov- ing elongated filament in thickness of about 16 mils or less. The filament can be a bare copper or aluminum conductor having round or rectangular configuration or an insulated conductor upon which a top or an inter- mediate coat of material is desirably applied. Coatings of one-half mil and one mil also can be applied by the method of the invention. By the apparatus of the inven- tion, magnet wire can be manufactured by continuously drawing the wire to size, annealing the wire, if neces- sary, insulating the wire with one or more coats of flowable resin material, curing the resin material, if necessary, hardening the resin material, and spooling the wire for shipment, without interruption at speeds limited only by the filament pay-off and take-up devices used. The apparatus of the invention utilizes the flow- able resin material to center the filament in a die, the size of the die controls the thickness of the coat to be applied. In the apparatus of the invention, only the resin material being applied to the filament is in contact with the filament. Thus, the mechanical wear normally asso- ciated with centering dies used in extrusion processes and like devices is completely eliminated.

Inventors

BODETTE, JAMES E., BULTEMEIER, KEITH D., COON, JESSIE H., DISQUE, DONNY R., GRIMES, JERRY L., HILKER, G. DANIEL, LAUSEN, VERNE H., WRIGHT, ROGER D.

1985-06-04

Patent #US3975507A

Oxidation-resistant nickel and cobalt sulfides and method for preparing same

AI Summary

The sulfides of nickel and cobalt prepared by sulfiding nickel and cobalt-enriched ammoniacal solutions oxi- dize rapidly (and often pyrophorically) when exposed to normal atmospheric conditions. The oxidized sul- fides then react with water present in the atmosphere in a hydration reaction. This oxidation and hydration may increase the weight of the sulfides by as much as 150% or more, depending upon such factors as the type of sulfides involved and the duration of the expo- sure. However, when nickel sulfide. cobalt sulfide, or mixtures thereof are dried, dehydrated, heated at tem- peratures of about 1000°F. or higher in a substantially inert atmosphere, and then cooled in a substantially inert atmosphere, the sulfides can surprisingly be ex- posed to normal atmospheric conditions for prolonged periods of time without undergoing significant oxida- tion or hydration. Consequently, only minimal weight increases are observed with the treated sulfides. The invention is of particular utility where the sulfides must be shipped from one location to another for fur- ther processing and will be in transit or storage for long periods of time. ,

Inventors

MATSON, RAPHEAL FRITZ

1976-08-17

Patent #US10549286B2

Apparatus for producing molybdenum disulfide powders

AI Summary

Apparatus for reducing a particle size of a precursor powder material by fluid energy impact according to one embodi- ment of the invention may include a housing defining an interior milling cavity therein having a peripheral wall. A powder feed inlet operatively associated with the housing introduces the precursor powder material into the interior milling cavity. A feed gas inlet operatively associated with the powder feed inlet introduces a feed gas into the interior milling cavity. A product discharge outlet operatively asso- ciated with the housing removes a milled powder product from the interior milling cavity. An oil injection nozzle assembly operatively associated with the product discharge outlet injects oil into a particle-laden product stream from the product discharge outlet.

Inventors

COLE, JAMES A., COTTRELL, DAVID L., DE GALA, GARY G., GIANNOTTI, LARRY, LOGUE, GREGORY RUE

2020-02-04

Patent #US4650924A

Ribbon cable, method and apparatus, and electromagnetic device

AI Summary

An improved ribbon cable comprising a plurality of insulated wires juxtaposed in fixed relationship to each other. An improved transposed cable in which each conductor of the cable of the invention is in the form of a continuous helix. An electromagnetic device having the ribbon cable of the invention as its magnetic wind- ings, and methods and apparatus for manufacturing both the ribbon cable and the transposed cable of the invention.

Inventors

KAUFFMAN, JOHN C., WESTENFELD, RICHARD A.

1987-03-17

Patent #US4738718A

Method for the recovery of gold using autoclaving

AI Summary

A gold recovery pretreatment process is disclosed in which the gold content is more completely extracted from refractory sulfidic ores which contain large quan- tities of metal carbonates such as dolomite than occurs in traditional gold extraction methods. The process includes treating the ore in an autoclave at elevated temperature and oxygen overpressure conditions in the presence of soda ash or other alkaline materials. The autoclaving of the slurried ore is performed for a suffi- cient amount of time to oxidize the sulfidic compounds in the ore. The oxidized ore is then more amenable to subsequent conventional gold extraction techniques.

Inventors

BAKSHANI, NANDKUMAR, YU, PETER H.

1988-04-19

Patent #US6235261B1

Method for producing ammonium octamolybdate composition

AI Summary

An isomer of ammonium octamolybdate (““AOM”) and method for producing the same. A new AOM isomer (“X- AOM”) is described which is characterized by a distinctive Raman spectral profile compared with other AOM isomers including a and B-AOM. To produce the novel isomer, ammonium dimolybdate (“ADM”) is combined with molyb- denum trioxide (MoO,) and water to yield a mixture. When mixing these materials, optimum results are achieved if at least one of the foregoing molybdenum-containing reagents is added in a gradual, non-instantaneous manner so that the selected reagent is not added to the mixture in a single large mass. This gradual delivery procedure, along with a care- fully controlled prolonged heating stage (e.g. in excess of 3 hours) contributes to a maximum yield of high purity X-AOM.

Inventors

BRUHL, TIMOTHY G., COLE, JAMES A., ELDER, WENDELL S., GLASGOW, GARY A., KHAN, MOHAMED H., WAGH, VIJAYKUMAR M.

2001-05-22

Patent #US4888071A

Method for manufacturing ribbon cable and transposed cable

AI Summary

Methods and apparatus for manufacturing an improved ribbon cable comprising a plurality of insulated wires juxtaposed in fixed relationship to each other and an improved transposed cable in which each conductor of the cable of the invention is in the form of a continuous helix. The electromagnetic device of the invention has the ribbon cable of the invention as its magnetic wind- ings.

Inventors

KAUFFMAN, JOHN C., WESTENFELD, RICHARD A.

1989-12-19

Patent #US4961777A

Pretreatment/agglomeration as a vehicle for refractory ore treatment

AI Summary

An agglomerative heap leaching method for recovering gold, silver or other metals from low grade refractory ores. Hypochlorite compounds are incorporated di- rectly into the ore agglomerates as they are formed. This provides ample time and opportunity for the hypo- chlorite to destroy, modify or passivate refractory com- ponents of the ore thereby improving metal recovery in the subsequent cyanide leaching step.

Inventors

BARROIS, MELVIN J., MCCORD, THOMAS H., O'NEIL, GREGORY R., PEREZ, JESUS W.

1990-10-09

Patent #US8808661B2

Molybdenum disulfide powders having low oil number and acid number

AI Summary

A molybdenum disulfide powder product produced by jet milling a molybdenum disulfide precursor material and sub- stantially continuously combining newly sized-reduced par- ticles with oil to produce said molybdenum disulfide powder product, said molybdenum disulfide powder product having a D50 particle size of less than 4 um and an acid number that is less than about 0.5 mg KOH/g. A method for producing powder product includes the steps of: Providing a supply ofa precursor powder material; accelerating particles of the pre- cursor powder material by combining them witha flow of gas; confining the accelerated particles in a milling chamber so that they collide with one another to effect a size reduction; and coating newly exposed surfaces of size-reduced particles with oil.

Inventors

COLE, JAMES A., COTTRELL, DAVID L., DEGALA, GARY G., GIANNOTTI, LARRY, LOGUE, GREGORY RUE

2014-08-19

Patent #US6626979B2

Method for improving metals recovery using high temperature pressure leaching

AI Summary

The present invention is directed to a process for recovering metal values from metal-bearing materials. During a reac- tive process, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive pro- cess or otherwise encapsulate the metal value, thereby reducing the amount of desired metal values partially or completely encapsulated by such material. The seeding agent may be generated in a number of ways, including the recycling of residue or the introduction of foreign sub- stances. Processes embodying aspects of the present inven- tion may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, zinc, rhenium, uranium, rare earth metals, and platinum group metals from any metal-bearing material, such as ores and concentrates.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., SCHMIDT, ROLAND, THOMPSON, PHILIP

2003-09-30

Patent #US8022004B2

Multi-coated electrode and method of making

AI Summary

Various embodiments provide an electrode comprising a con- ductive substrate, a first layer of a mixture comprising iridium oxide in a crystalline phase and tantalum oxide in an amor- phous phase on a portion ofan outer surface of the conductive substrate, and a second layer of the mixture comprising iri- dium oxide in an amorphous phase and tantalum oxide in an amorphous phase on an outer surface of the first layer.

Inventors

CLAYTON, CASEY J, MORIMITSU, MASATSUGU, SANDOVAL, SCOT P, WAITE, MICHAEL D

2011-09-20

Patent #US6972107B2

System for direct electrowinning of copper

AI Summary

Asystem and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent extraction techniques or apparatus. A process for recovering copper from a copper- containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, condi- tioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution, without subjecting the copper-containing solution to solvent extrac- tion.

Inventors

BAUGHMAN, DAVID R., BEMELMANS, CHRISTEL M. A., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2005-12-06

Patent #US5096571A

Recovery of sulfur from native ores

AI Summary

A process for recovering elemental sulfur from volca- nic and non-volcanic ores is disclosed. Ore is processed by crushing the ore to a coarse particle size autoclaving to separate the sulfur from the ore, mild grinding to selectively reduce the size of the liberated sulfur parti- cles, flotation and sulfur separation/filtration steps to produce a sulfur of at least 99% purity. The process recovers at least 90% of the elemental sulfur contained in the ore. The particular crushing of the ore and selec- tive grinding techniques for reducing sulfur particles for reducing sulfur particles size are important factors in the efficiency of the process since the grinding tech- niques inhibit the formation of fine gangue which is difficult to separate from the liberated sulfur.

Inventors

ASTLEY, VIVIAN C., HEADINGTON, THOMAS A., PEREZ, JESUS W., WIEWIOROWSKI, TADEUSZ K., WOMACK, JAMES T.

1992-03-17

Patent #US6680034B2

Method for recovering metal values from metal-containing materials using high temperature pressure leaching

AI Summary

The present invention relates generally to a process for recovering copper and other metal values from metal- containing materials through pressure leaching operations. In accordance with the various aspects of the present invention, metal-containing pregnant leach solutions from pressure leaching operations need not be significantly diluted to facilitate effective metal recovery using solvent extraction and electrowinning.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., THOMPSON, PHILIP

2004-01-20

Patent #US6676909B2

Method for recovery of metals from metal-containing materials using medium temperature pressure leaching

AI Summary

The present invention relates generally to a process for recovering copper and other metal values from metal- containing materials using controlled, super-fine grinding and medium temperature pressure leaching. Processes embodying aspects of the present invention may be benefi- cial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, rhenium, zinc, uranium, and platinum group metals, from metal-bearing materials, and find particular utility in connection with the extraction of copper from copper sulfide ores and concentrates.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., SCHMIDT, ROLAND, THOMPSON, PHILIP

2004-01-13

Patent #US5891215A

Molten metal degassing and filtering methods

AI Summary

Molten metal (e.g., on its way to a continuous casting machine for forming a bar that will be rolled into a rod to be drawn down to wire) is filtered to remove particulate impu- rities by passing it through at least one and preferably several ceramic filters. In addition, the molten metal is degassed by injecting a flushing gas into the metal through one or more porous plugs in the bottom of the chamber through which the molten metal flows. A partial vacuum column above each porous plug is used to help pull gas up through and out of the metal.

Inventors

MESEHA, GEORGE M., TAVARES, FAUSTO

1999-04-06

Patent #US4671833A

Process for applying a heat-shrinkable material over sulfur well piping

AI Summary

A process for placing heat-shrinkable polyfluoroolefin polymer sleeves, preferably, FEP resin or PFA resin, over Frasch sulfur well piping and other downhole well piping to protect such piping from corrosion.

Inventors

BRADFORD, RANDOL W., HILLER, ALFRED E., WINTERS, JR., BURNHAM F.

1987-06-09

Patent #US8507090B2

Spherical molybdenum disulfide powders, molybdenum disulfide coatings, and methods for producing same

AI Summary

Molybdenum disulfide powders include substantially spheri- cally-shaped particles of molybdenum disulfide that are formed from agglomerations of generally flake-like sub-par- ticles. The molybdenum disulfide powders are flowable and exhibit uniform densities. Methods for producing a molyb- denum disulfide powder may include the steps of: Providing a supply of molybdenum disulfide precursor material; pro- viding a supply of a liquid; providing a supply of a binder; combining the molybdenum disulfide precursor material with the liquid and the binder to form a slurry; feeding the slurry into a stream of hot gas; and recovering the molybdenum disulfide powder, the molybdenum disulfide powder includ- ing substantially spherically-shaped particles of molybde- num disulfide formed from agglomerations of generally flake-like sub-particles.

Inventors

COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2013-08-13

Patent #US4156545A

Process for heating and chemically treating an aqueous process fluid

AI Summary

An integrated system and process is provided to heat and chemically treat an aqueous process fluid such as the water required for producing sulfur by the Frasch process without undue scaling and corrosion of appara- tus when a sulfur-containing fuel such as oil is employed as the energy source.

Inventors

BLANCHARD, JR., WILLIAM J., CAIRNS, EDWARD J., DIONNE, MARION J.

1979-05-29

Patent #US8465692B2

Sodium/molybdenum composite metal articles and methods for producing metal articles

AI Summary

A method for producing a metal article may include: Produc- ing a supply of a composite metal powder by: providing a supply of molybdenum metal powder; providing a supply of asodium compound; combining the molybdenum metal pow- der and the sodium compound with a liquid to form a slurry; feeding the slurry into a stream of hot gas; and recovering the composite metal powder; and consolidating the composite metal powder to form the metal article, the metal article comprising a sodium/molybdenum metal matrix. Also dis- closed is a metal article produced accordance with this method.

Inventors

COX, CARL, DEBOSKEY, ADAM, GOEL, NARESH, HONECKER, DAVE, JHA, SUNIL CHANDRA, MICHALUK, CHRIS, SMITH, ERIC

2013-06-18

Patent #US5236676A

Pressure chlorination of refractory gold ores

AI Summary

A method and apparatus are described for recovering gold from aqueous slurries of refractory gold ores con- taining sulfidic and/or carbonaceous matter. The method entails pretreating an ore slurry with chlorine in a multi-compartment autoclave operated at an elevated pressure. The chlorine used in this pressure chlorination pretreatment can be in either the gaseous or liquid state. Following the removal of residual chlorine from the pretreated ore slurry, said slurry is transferred to a con- ventional cyanide leach/carbon adsorption circuit to recover the gold values.

Inventors

PICKREN, ROY A., TOURO, FREDDIE J.

1993-08-17

Patent #US3846578A

Splice for electric cables

AI Summary

The central conductors of aligned cables are provided with a mechanical and electrical interconnection at their opposing end portions where their respective in- sulating layers are cut back to expose these end por- tions. An insulating sleeve is applied in surrounding relation to the adjacent end portions of the cable to form a chamber extending around said interconnec- tion and the respective cut-back insulating layers; the chamber being closed except for an inlet and an out- let. A filling material having a high dielectric constant is injected through. said inlet while expelling air through said outlet until the chamber is substantially filled with the material, whereupon the outlet is closed and an additional amount of said material is forced through the inlet to place the chamber contents under superatmospheric pressure. The inlet is then closed to maintain the filling material under superatmospheric pressure in the chamber.

Inventors

BAHDER, GEORGE, GARCIA, FELIPE G.

1974-11-05

Patent #US4710366A

Method for producing stabilized wet process phosphoric acid with low content of magnesium and aluminum

AI Summary

Wet process phosphoric acid, stabilized with respect to the precipitation of solids upon aging, and containing significantly reduced levels of magnesium and alumi- num, is prepared by the controlled addition of fluosilicic acid to wet process filter grade phosphoric acid fol- lowed by a series of evaporation, crystallization and centrifugation steps. Sufficient fluosilicic acid is added to provide a fluorine to magnesium ratio of about 2.5:1 to 10.1:1, preferably 5:1. The final product, which has a P205 content of at least 56 percent, contains low amounts of magnesium and aluminum, and exhibits low solids precipitation characteristics during shipment, storage and eventual processing into end products such a fertilizers.

Inventors

ASTLEY, VIVIAN C., TARAVELLA, JODY J.

1987-12-01

Patent #US6746656B2

Methods for production of molybdenum carbide

AI Summary

Methods for producing molybdenum carbide. An embodi- ment of the method may comprise heating a precursor material in a first heating zone in the presence of a reducing gas and a carbonizing gas, the first heating zone having a first temperature. Moving the precursor material into a second heating zone to form the molybdenum carbide from the precursor material, the second heating zone having a second temperature, the second temperature being at least 100° C. hotter than the first temperature.

Inventors

KHAN, MOHAMED H., TAUBE, JOEL A.

2004-06-08

Patent #US6872288B2

Apparatus for controlling flow in an electrodeposition process

AI Summary

An electrowinning cell, having a tank with an opened upper end defined by a tank edge, electrolyte within the tank and a plurality of flat, metallic electrode plates disposed within the tank in side-by-side, spaced-apart, parallel relationship. Adjacent electrode plates define an electrode gap therebe- tween. An injector manifold is disposed at the bottom of the tank for feeding electrolyte into the tank at locations below the electrode plates. A collector grid, comprised of a plu- rality of collectors having ports, define an upper level of electrolyte by collecting the electrolyte from the tank. The ports are disposed in spaced-apart relationship within the open upper end defined by the tank edge. The collector grid and the injector creating a flow of electrolyte upward between the plates as the electrolyte flows from the manifold locations below the plates to the ports.

Inventors

HUENS, JEAN-LOUIS, PECKHAM, PETER

2005-03-29

Patent #US4826706A

Method and apparatus for manufacturing magnet wire

AI Summary

A novel method and apparatus for manufacturing mag- net wire in a continuous process by which coatings of a flowable resin material may be applied concentrically to

Inventors

BODETTE, JAMES E., BULTEMEIER, KEITH D., COON, JESSIE H., DISQUE, DONNY R., GRIMES, JERRY L., HILKER, G. DANIEL, LAUSEN, VERNE H., WRIGHT, ROGER D.

1989-05-02

Patent #US8147586B2

Method for producing molybdenum metal powder

AI Summary

Method for producing molybdenum metal powder. The invention includes introducing a supply of ammonium molybdate precursor material into a furnace in a first direction and introducing a reducing gas into a cooling zone in a second direction opposite to the first direction. The ammonium molybdate precursor material is heated at an initial tempera- ture in the presence of the reducing gas to produce an inter- mediate product that is heated at a final temperature in the presence of the reducing gas, thereby creating the molybde- num metal powder comprising particles having a surface area to mass ratio of between about 1 m7/g and about 4 m7/g, as determined by BET analysis, and a flowability of between about 29 s/50 g and 86 s/50 g as determined by a Hall Flow- meter. The molybdenum metal powder is moved through the cooling zone.

Inventors

JHA, SUNIL CHANDRA, JOHNSON, JR., LOYAL M., THOMPSON, PATRICK ANSEL

2012-04-03

Patent #US3888966A

Enhanced cobalt recovery from ammoniacally leached reduced ores using cyanide, hydrazine, or hydroxylamine compounds

AI Summary

In an ammoniacal leaching process for the recovery of non-ferrous metals, the slurry of reduced ore and am- moniacal solution in the leaching-washing circuit is treated with nitrogenous compounds selected from the group consisting of hydrazine and soluble salts thereof, hydroxylamine and soluble salts thereof, hy- drogen cyanide and soluble cyanide salts. These com- pounds enhance the solubilization of ore cobalt values into the liquid phase of the slurry, thereby enabling the recovery of additional amounts of cobalt which would otherwise be lost with the ore tailings.

Inventors

MILLER, DAVID JAMES

1975-06-10

Patent #US7883673B2

Apparatus for producing nano-particles of molybdenum oxide

AI Summary

Apparatus for producing nano-particles includes a furnace defining a vapor region therein. A precipitation conduit hav- ing an inlet end and an outlet end is positioned with respect to the furnace so that the inlet end is open to the vapor region. A quench fluid supply apparatus supplies quench fluid in a gas state and quench fluid in a liquid state. A quench fluid port positioned within the precipitation conduit is fluidically con- nected to the quench fluid supply apparatus so that an inlet to the quench fluid port receives quench fluid in the gas state and quench fluid in the liquid state. The quench fluid port provides a quench fluid stream to the precipitation conduit to precipi- tate nano-particles within the precipitation conduit. A product collection apparatus connected to the outlet end of the pre- cipitation conduit collects nano-particles produced within the precipitation conduit.

Inventors

COLE, JAMES A., KHAN, MOHAMED H., TAUBE, JOEL A.

2011-02-08

Patent #US4408032A

Modified polyamide-imide resins and method for making the same

AI Summary

A modified polyamide-imide resin and method for mak- ing the same. The composition comprises the reaction product of an aromatic tricarboxylic acid anhydride reactant, an aromatic diisocyanate reactant and an ali- phatic dicarboxylic acid reactant in a solution compris- ing an aprotic solvent at a temperature ranging from about 70° C. to about 155° C. The tricarboxylic acid anhydride reactant is present in an amount which is greater than about 25 mol percent of the total of the tricarboxylic acid anhydride-aliphatic dicarboxylic acid reactants.

Inventors

DISQUE, DONNY R., KNERR, ALLAN R., SOLLNER, GEORGE H.

1983-10-04

Patent #US7125436B2

Method for improving metals recovery using high temperature pressure leaching

AI Summary

The present invention is directed to a system for recovering metal values from metal-bearing materials. During a reac- tive process, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive pro- cess or otherwise encapsulate the metal value, thereby reducing the amount of desired metal values partially or completely encapsulated by such material. The seeding agent may be generated in a number of ways, including the recycling of residue or the introduction of foreign sub- stances. Systems embodying aspects of the present invention may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, zinc, rhe- nium, uranium, rare earth metals, and platinum group metals from any metal-bearing material, such as ores and concen- trates.

Inventors

BAUGHMAN, DAVID R., BREWER, ROBERT E., HAZEN, WAYNE W., MARSDEN, JOHN O., ROBERTSON, JOANNA M., SCHMIDT, ROLAND, THOMPSON, PHILIP

2006-10-24

Patent #US7588609B2

Friction material compositions and additives

AI Summary

The claimed invention involves a novel composition of matter comprising a mixture of Fe—Mo Intermetallic and copper oxide. A novel composition of matter of Fe—Mo Intermetal- lic, copper oxide and calcium carbonate is also claimed. The claimed invention also involves a novel friction lining addi- tive comprising Fe—Mo Intermetallic and copper oxide for improved braking effectiveness. Fe—Mo Intermetallic, cop- per oxide and calcium carbonate may also be used as a friction lining additive according to the present invention. The claimed invention also includes a novel motor brush compris- ing Fe—Mo Intermetallic and copper oxide for improved wear. Fe—Mo Intermetallic, copper oxide and calcium car- bonate may also be used as a motor brush additive according to the present invention.

Inventors

JHA, SUNIL CHANDRA, KHAN, MOHAMED H.

2009-09-15

Patent #US9790448B2

Spherical copper/molybdenum disulfide powders, metal articles, and methods for producing same

AI Summary

A method of producing a compacted article according to one embodiment may involve the steps of: Providing a copper/ molybdenum disulfide composite powder including a sub- stantially homogeneous dispersion of copper and molybde- num disulfide sub-particles that are fused together to form individual particles of the copper/molybdenum disulfide composite powder; and compressing the copper/molybde- num disulfide composite powder under sufficient pressure to cause the copper/molybdenum disulfide composite powder to behave as a nearly solid mass.

Inventors

BANDA, ALEJANDRA, CORTE, LAWRENCE J., COX, CARL V., EPSHTEYN, YAKOV, SHAW, MATTHEW C.

2017-10-17

Patent #US7565811B2

Gaseous fluid production apparatus and method

AI Summary

Gaseous fluid production apparatus according to one embodi- ment of the invention includes a fluid container containing fluid substantially in the liquid state. A first fluid line is connected to the fluid container so that it receives from the fluid container a first fluid stream substantially in the liquid state. A gas generator is also connected to the fluid container so that it receives from the fluid container a second fluid stream substantially in the liquid state. A product discharge manifold is connected to the gas generator and to the first fluid line. A controller means is operatively associated with the first fluid line and the product discharge manifold for controlling at least one parameter of the first fluid stream. A second controller means is operatively associated with the gas gen- erator and the product discharge manifold for controlling at least one parameter of the second fluid stream.

Inventors

TAUBE, JOEL A.

2009-07-28

Patent #US4658090A

Ribbon cable, a transposed ribbon cable, and a method and apparatus for manufacturing transposed ribbon cable

AI Summary

Improved method and apparatus for manufacturing transposed ribbon cable, an improved ribbon cable, and an improved transposed ribbon cable. The transposed ribbon cable is manufactured by the method and appara- tus of the invention by folding a ribbon cable angularly with respect to the longitudinal axis repeatedly while advancing the ribbon cable incrementally.

Inventors

COON, JESSIE H.

1987-04-14

Patent #US5687609A

Method and apparatus for mineral flotation cell level detection

AI Summary

A flotation cell level detector for providing an indication of a level of a liquid in a flotation cell may comprise a generally circular shaped float having a submergence function such that small changes in the submergence level of the float will result in large changes in the submerged volume of the float when the float is submerged at about the design level of submergence. A reference member is attached to the float and held a spaced distance above the float by a plurality of support members. A sensor mounted above the reference member detects the position of the reference member and generates a corresponding output signal.

Inventors

SCHMALZEL, MICHAEL O.

1997-11-18

Patent #US3884868A

Coating compositions comprising polyimides and polysiloxanes

AI Summary

A coating composition which when applied to a sub- strate and baked forms a non-porous, tough and dura- ble coating exhibiting good release properties compa- rable to polytetrafluoroethylene TEFLON II coatings, good abrasion, cut and scratch resistance, and good resistance to thermal degradation. The coating com- position comprises an essentially linear, high molecu- lar weight polyaromatic polycarboxylic aromatic poly- imide and may include certain polyfunctional organic substituted polysiloxanes and/or powdered fillers and pigments.

Inventors

ANDERSON, AMOS R., MCLEOD, GORDON D., TRICE, ROBERT T., WILSON, DENNIS C.

1975-05-20

Patent #US6626976B2

Method for producing molybdenum metal

AI Summary

Novel forms of molybdenum metal, and apparatus and methods for production thereof. Novel forms of molybde- num metal are preferably characterized by a surface area of substantially 2.5 m?/g. Novel forms of molybdenum metal are also preferably characterized by a relatively uniform size. Preferred embodiments of the invention may comprise heating a precursor material to a first temperature in the presence of a reducing gas, and increasing the first tempera- ture at least once to reduce the precursor material and form the molybdenum metal product.

Inventors

KHAN, MOHAMED H., TAUBE, JOEL A.

2003-09-30

Patent #US4379711A

Apparatus and method for visually monitoring an ion exchange fluidized bed

AI Summary

A method and apparatus for visually monitoring the fluidized bed of a resin ion exchanger. The method includes establishing a sample fluidized bed displaced from, but in fluid communication with, the resin ion exchanger fluidized bed and supplying a quantity of exchanger process solution in a controlled manner to the sample fluidized bed such that the sample fluidized bed represents among other exchanger fluidized bed characteristics the exchanger fluidized bed height. The apparatus includes a monitor having a transparent sam- pling column in fluid communication with the ex- changer fluidized bed and a regulator in fluid communi- cation with the exchanger and the sample column for establishing a solution sample for supply to the sample fluidized bed. The regulator includes an orifice for con- trolling the flow rate of solution sample supplied to the sample fluidized bed.

Inventors

SATCHELL, JR., DONALD P.

1983-04-12

Patent #US8043405B2

Densified molybdenum metal powder

AI Summary

Densified molybdenum metal powder. Densified molybde- num metal powder has substantially generally spherical par- ticles, surface-area-to-mass ratio of no more than about 0.5 m?/g as determined by BET analysis, anda flowability greater than about 32 s/50 g as determined by a Hall Flowmeter.

Inventors

JHA, SUNIL CHANDRA, JOHNSON, JR., LOYAL M., THOMPSON, PATRICK ANSEL

2011-10-25

Patent #US3891580A

Reaction of fine media miller strach or protein with a polymer or polymerizable monomer

AI Summary

The disclosure relates to a process for preparing an adhesive, a novel adhesive, a novel polymeric material and a process for preparing extremely stable emul- sions. The process of the invention comprises subject- ing an aqueous mixture of starch or protein, or at least two insoluble substances, and grinding media to an ag- itation in the presence of a pigment, if desired, and then removing the grinding media therefrom. The treated starch or protein may be further reacted with a polymerizable monomer or preformed polymer to form the novel polymeric material. A superior adhe- sive, which finds particular application in coating base materials, as paper, is obtained. Stable emulsions formed are particularly useful in pharmaceutical and food applications.

Inventors

DREXEL, JR., RICHARD JACOB, MORRIS, HORTON HAROLD, TURNER, KENNETH LAMAR

1975-06-24

Patent #US6180888B1

Pulsed voltage surge resistant magnet wire

AI Summary

A pulsed voltage surge resistant magnet wire having a conductor and a continuous and concentric and flexible uniform coat of insulation material superimposed on the conductor. The insulation material has an effective amount of a particulate filler material dispersed throughout the material to increase the pulsed volt surge resistance of the insulation material by at least ten-fold in comparison testing at 20 kHz, 0.721 kV per mil, 50% duty cycle from about 30° C. to about 130° C. with rise times of about 83 kV per microsecond. The particulates of the filler have a size from about 0.005 microns to about 1.0 microns.

Inventors

BARTA, DONALD J., YIN, WEIJUN

2001-01-30

Patent #US4611050A

Essentially linear polymer having a plurality of amide, imide and ester groups therein, and a method of making the same

AI Summary

An essentially linear resin having a plurality of amide, imide and ester groups therein comprising the conden- sation product of at least one polycarboxylic acid five member ring-forming reactant, at least one ethyleni- cally unsaturated polycarboxylic acid five or six mem- ber ring lactam-forming reactant, at least one polyfunc- tional hydroxy compound, at least one difunctional amino five or six member ring forming reactant, at least one polycarboxylic acid reactant having no more than two carboxylic acid ester forming radicals, and at least one polycarboxylic acid reactant having two or more carboxylic acid ester forming radicals with at least two of the radicals in the 1,2 position relative to each other. The method of forming a solution of a prepolymer having a plurality of amide, imide and ester groups therein in cresylic acid or glycol ether solvents and reacting the same with at least one ethylenically unsatu- rated polycarboxylic acid five or six member ring form- ing reactant at elevated temperatures.

Inventors

BARTA, DONALD J., SOLLNER, GEORGE H.

1986-09-09

Patent #US6485735B1

Multilayer thermoset polymer matrix and structures made therefrom

AI Summary

A composite thermoset polymer matrix structure having a plurality of homogeneously bonded thermoset polymer lay- ers and a method of forming the same is disclosed. Each of the layers is formed from either a pure thermoset polymer resin or a composition of any of a variety of thermoset polymer resins and any of a variety of agents or combination of agents heterogeneously dispersed and suspended within the thermoset polymer resin. In this manner, each layer exhibits a distinct desirable functional property or charac- teristic depending upon an intended application. The agents are selected from a group of additives including but not limited to anti-microbial agents, anti-fungal agents, anti- viral agents, anti-thrombotic agents, friction reducing agents; radiopaque agents, and electrically conductive or resistive agents. The composite thermoset polymer matrix structure may be formed into any size or any shape, object, or structure.

Inventors

DANIEL, STEVIE, GOLD, FLOYD, STEEN, BRETT

2002-11-26

Patent #US3903245A

Enhanced cobalt recovery in the distillation of ammoniacal carbonate solutions of nickel and cobalt

AI Summary

In the straight distillation of aqueous ammoniacal car- bonate solutions containing nickel and cobalt for the non-selective recovery of these metals as a mixed pre- cipitate consisting mainly of basic nickel and cobalt carbonates, cobalt recoveries are significantly im- proved by carrying out the distillation in the presence of small amounts of sulfide ions.

Inventors

MILLER, DAVID JAMES, WIEWIOROWSKI, TADEUSZ KAROL

1975-09-02

Patent #US7824465B2

Methods for producing metal powders

AI Summary

A method for producing a metal powder product involves: Providing a supply of a precursor metal powder; combining the precursor metal powder with a liquid to form a slurry; feeding the slurry into a pulsating stream of hot gas; and recovering the metal powder product.

Inventors

LARINK, JR., STEVEN C.

2010-11-02

Patent #US4298466A

Apparatus and method for visually monitoring an ion exchange fluidized bed

AI Summary

A method and apparatus for visually monitoring the fluidized bed of a resin ion exchanger. The method includes establishing a sample fluidized bed displaced from, but in fluid communication with, the resin ion exchanger fluidized bed and supplying a quantity of exchanger process solution in a controlled manner to the sample fluidized bed such that the sample fluidized bed represents among other exchanger fluidized bed characteristics the exchanger fluidized bed height. The apparatus includes a monitor having a transparent sam- pling column in fluid communication with the ex- changer fluidized bed and a regulator in fluid communi- cation with the exchanger and the sample column for establishing a solution sample for supply to the sample fluidized bed. The regulator includes an orifice for con- trolling the flow rate of solution sample supplied to the sample fluidized bed.

Inventors

SATCHELL, JR., DONALD P.

1981-11-03

Patent #US2699387A

Method for the transformation of pulverulent solids

AI Summary

Inventors

OSBORN WILLIAM H.

1955-01-11

Patent #US1673879A

Process for mining sulphur

AI Summary

Inventors

BURNS HOMER S., LUNDY WILSON T.

1928-06-19

Patent #US1984554A

Hollow cable

AI Summary

Inventors

STAPLES HORACE A.

1934-12-18

Patent #US2258242A

Apparatus for drawing tubes of multiple wall thickness

AI Summary

Inventors

DITZEL OSCAR MARONEY, PETERSEN VICTOR

1941-10-07

Patent #US3607231A

Method for purification of copper

AI Summary

Inventors

HART, THOMAS GORDON

1971-09-21

Patent #US3070649A

Coaxial cable coupling

AI Summary

Inventors

DUMIRE LEO G., EDLEN GEORGE

1962-12-25

Patent #US3214107A

Adjustable locking mandrel for spools

AI Summary

Inventors

ATKIN ERIC D.

1965-10-26

Patent #US1844634A

Method of treating sulphur

AI Summary

Inventors

BUSHNELL LYMAN S.

1932-02-09

Patent #US3698862A

Method for the storage and shipment of wet process phosphoric acid

AI Summary

Inventors

JATINDER JOLLY

1972-10-17

Patent #US2105168A

Electric cable

AI Summary

Inventors

STAPLES HORACE A.

1938-01-11

Patent #US2161245A

Process of lowering sulphur viscosity and resulting nonviscous sulphur compound

AI Summary

Inventors

CAIN GORDON A., CHATELAIN JOHN B.

1939-06-06

Patent #US3640682A

Increasing the rate of reaction in reducing calcium sulfate to calcium sulfide

AI Summary

Inventors

REINHARDT, JAMES R., SMITH, JAY CHARLES

1972-02-08

Patent #US3697474A

Organo-clay-polymer compositions

AI Summary

Inventors

HORTON H. MORRIS, JAMES P. OLIVER, PAUL I. PRESCOTT

1972-10-10

Patent #US1700995A

Process of protecting pipe from corrosion

AI Summary

Inventors

BURNS HOMER S., BUSHNELL LYMAN S.

1929-02-05

Patent #US2580273A

Refractory metal alloy castings and methods of making same

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., PARKE ROBERT M.

1951-12-25

Patent #US3206127A

Process for upgrading mica

AI Summary

Inventors

MORRIS HORTON H., TURNER KENNETH L.

1965-09-14

Patent #US2402471A

Calcining alum

AI Summary

Inventors

OSBORN WILLIAM H., TUWINER SIDNEY B.

1946-06-18

Patent #US2157811A

Coiling mechanism

AI Summary

Inventors

BEACH HAROLD K.

1939-05-09

Patent #US3288598A

Method for recovering metals

AI Summary

Inventors

HOGUE WILLIAM G.

1966-11-29

Patent #US2371483A

Copper pigment

AI Summary

Inventors

DODGE DWIGHT A., TUWINER SIDNEY B.

1945-03-13

Patent #US1542966A

Metallurgical apparatus

AI Summary

Inventors

SAMUEL JOHN MOORE

1925-06-23

Patent #US3316063A

Process for heat-treating liquid sulfur containing carbonaceous impurities

AI Summary

Inventors

1967-4-25

Patent #US2124421A

Cyanide process

AI Summary

Inventors

KLEIN LEONARD

1938-07-19

Patent #US2283900A

Process for producing resins of the sulphur dioxide-olefin type

AI Summary

Inventors

BARNETT MAXWELL M.

1942-05-26

Patent #US3660134A

Inorganic materials surface reacted with organo titanium compounds

AI Summary

Inventors

MORRIS, HORTON H., OLIVIER, JAMES P.

1972-05-02

Patent #US2300943A

Process of alloying molybdennum with ferrous alloys

AI Summary

Inventors

LINZ ARTHUR

1942-11-03

Patent #US2288569A

Protection of economic crops

AI Summary

Inventors

MASON DONALD BENTLEY, PETERSON PAUL DONALD

1942-06-30

Patent #US2470935A

Alloy addition agents

AI Summary

Inventors

LINZ ARTHUR

1949-05-24

Patent #US3169576A

Pipe line for conveying sulfur and other hot liquids

AI Summary

Inventors

COCKRELL CLIFFORD M., LEE CLARENCE O.

1965-02-16

Patent #US1445980A

Copper-matting furnace and method of consuming fuel therein

AI Summary

Inventors

STOUT HARRY HOWARD

1923-02-20

Patent #US2063470A

Method of making copper sheathed steel core cables

AI Summary

Inventors

STAPLES HORACE A.

1936-12-08

Patent #US2314067A

Process for producing sulphur dioxide-olefin resins

AI Summary

Inventors

BARNETT MAXWELL M., JR. JOHN H. BROWN

1943-03-16

Patent #US3328016A

Tuyere punching machine

AI Summary

Inventors

CLEMONS MAURICE MORTIMER, FOARD JAMES EDWIN, HOFFMAN FLOYD, WINKLER FRED MARSH

1967-06-27

Patent #US3346887A

Sanitary drain system, method, and fittings therefor

AI Summary

Inventors

SOMMER FRITZ

1967-10-17

Patent #US2261559A

Tuyere

AI Summary

Inventors

OSBORN WILLIAM H.

1941-11-04

Patent #US3069379A

Composition comprising a polyvinyl acetal, a phenol-aldehyde resin and a polyisocyanate, process for preparing same, and electrical conductor coated therewith

AI Summary

Inventors

CROZIER ROBERT N., FITZHUGH ANDREW F., LAVIN EDWARD

1962-12-18

Patent #US2327546A

Recovery of antimony

AI Summary

Inventors

OSBORN WILLIAM H., SMITH JOHN R.

1943-08-24

Patent #US2616782A

Production of sodium cyanide

AI Summary

Inventors

CAIN GORDON A., CHATELAIN JOHN B.

1952-11-04

Patent #US2206117A

Recovery of metal values from fume deposits

AI Summary

Inventors

CREGO FRANK T., OSBORN WILLIAM H.

1940-07-02

Patent #US3558069A

Safety system for strand take-up machines

AI Summary

Inventors

FEDER, CHARLES

1971-01-26

Patent #US3156354A

Device for blocking wire lay

AI Summary

Inventors

LAYMON WILLIAM M.

1964-11-10

Patent #US1823188A

Method for treating discolored sulphur

AI Summary

Inventors

BUSHNELL LYMAN S.

1931-09-15

Patent #US2275187A

Electric cable

AI Summary

Inventors

CLARK GORDON STERLING, PALMER JOHN HUNTER

1942-03-03

Patent #US2381674A

Process of producing tungsten containing ferrous alloys

AI Summary

Inventors

LINZ ARTHUR

1945-08-07

Patent #US3659708A

Separation of discolorants from clay

AI Summary

Inventors

MORRIS, HORTON H., OLIVIER, JAMES P., ROSS, SYDNEY

1972-05-02

Patent #US3042503A

Purification of sulfur

AI Summary

Inventors

JACKSON FRANK L., TUILER WILLIAM N.

1962-07-03

Patent #US3284859A

Circular trough casting apparatus

AI Summary

Inventors

CONLON JOHN J., YEARLEY DOUGLAS C.

1966-11-15

Patent #US3079103A

Wire coiling apparatus

AI Summary

Inventors

HOILINGSWORTH HENRY L.

1963-02-26

Patent #US2959515A

Cuprous derivatives of substituted thioureas

AI Summary

Inventors

BALDWIN MAYNARD M.

1960-11-08

Patent #US2678269A

Molybdenum-titanium alloys

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., HERZIG ALVIN J., TIMMONS GEORGE A.

1954-05-11

Patent #US2798804A

Process of preparing limonitic ores for separation of metal content

AI Summary

Inventors

SIMONS COURTNEY S.

1957-07-09

Patent #US3230111A

Polyester-insulated magnet wire and method of making same

AI Summary

Inventors

HALL RALPH W., KOERNER ERNEST C., SMITH EARL L.

1966-01-18

Patent #US2007009A

Annealing furnace

AI Summary

Inventors

STAPLES HORACE A.

1935-07-02

Patent #US3621243B1

Apparatus and process for determining particle size by x-ray absorption analysis

AI Summary

Inventors

1983-04-05

Patent #US1353422A

Rabble

AI Summary

Inventors

ROBINSON EUGENE CLAYBORNE

1920-09-21

Patent #US2789896A

Process for reducing metal oxides

AI Summary

Inventors

COFFER LYNN WALLACE

1957-04-23

Patent #US2107328A

Treatment of steel

AI Summary

Inventors

BARKER LYLE M., FOWLER MORRIS G.

1938-02-08

Patent #US2792342A

Electrowinning of copper

AI Summary

Inventors

TUWINER SIDNEY B.

1957-05-14

Patent #US3848054A

Recovery of cobalt values from the leached ore tailings of a conventional ammoniacal leaching process

AI Summary

Inventors

WIEWIOROWSKI T US

1974-11-12

Patent #US2145040A

Method of and machine for making crab joints

AI Summary

Inventors

CAWTHRA ERNEST HALLEWELL

1939-01-24

Patent #US2135985A

Electric cable

AI Summary

Inventors

MITCHELL EARLE A.

1938-11-08

Patent #US2493413A

Mining of sulfur

AI Summary

Inventors

AXELRAD BERNARD A., LEE CLARENCE O., MCIVER DE WITT T.

1950-01-03

Patent #US2559104A

Flotation recovery of molybdenite

AI Summary

Inventors

ARBITER NATHANIEL, YOUNG OREL E.

1951-07-03

Patent #US2690880A

Rectilinear pulverizer

AI Summary

Inventors

CHATELAIN JOHN B.

1954-10-05

Patent #US2425851A

Gas filled cable

AI Summary

Inventors

WYATT KENNETH SAPWELL

1947-08-19

Patent #US2113283A

Copper-silicon-iron-lead alloy

AI Summary

Inventors

SIROIS BENOLT J.

1938-04-05

Patent #US3001889A

Method and apparatus for applying metal coatings to the inner surfaces of metal tubes

AI Summary

Inventors

ROBINSON MYRON L.

1961-09-26

Patent #US3099419A

Magnet wire tensioning device

AI Summary

Inventors

HILKER GEORGE D., KERCH RONALD C.

1963-07-30

Patent #US1980363A

Method of making electrical conductors

AI Summary

Inventors

STAPLES HORACE A.

1934-11-13

Patent #US2656743A

Die mechanism for extruding compressed powder rods

AI Summary

Inventors

LEAVENWORTH EDGAR K.

1953-10-27

Patent #US1835790A

Feed control for furnaces

AI Summary

Inventors

LEGRAND CHARLES

1931-12-08

Patent #US3051467A

Apparatus for producing sponge iron

AI Summary

Inventors

FOWLER MORRIS G., JR. JOHN H. DAVIS, KUZELL CHARLES R., MACDOUGALL IRVINE

1962-08-28

Patent #US2605971A

Combination pulverizing and classifying machine

AI Summary

Inventors

ANDREWS NORWOOD H.

1952-08-05

Patent #US1550655A

Method and apparatus for smelting

AI Summary

Inventors

AMBLER JOHN OWEN, BISHOP SPENCER, STOUT HARRY HOWARD

1925-08-25

Patent #US2399747A

Metallurgy

AI Summary

Inventors

LINZ ARTHUR

1946-05-07

Patent #US2134616A

Producing molybdenum alloys

AI Summary

Inventors

LINZ ARTHUR

1938-10-25

Patent #US2872306A

Recovery of cobalt and nickel from ores

AI Summary

Inventors

MORROW JOHN GEORGE

1959-02-03

Patent #US2989397A

Gaseous reduction of oxygencontaining copper

AI Summary

Inventors

FOWLER MORRIS G., JR. JOHN H. DAVIS, KLEIN LEONARD, KUZELL CHARLES R.

1961-06-20

Patent #US3037959A

Coating composition comprising a polyvinyl acetal, a melamine-aldehyde resin and a polyurethane, process for preparing same, and electrical conductor coated therewith

AI Summary

Inventors

LAVIN EDWARD, MARKHART ALBERT H.

1962-06-05

Patent #US2301762A

Preparation of metal salts of organic polybasic acids

AI Summary

Inventors

DODGE DWIGHT A., TUWINER SIDNEY B.

1942-11-10

Patent #US2590146A

Production of hydrogen cyanide

AI Summary

Inventors

BARSKY GEORGE

1952-03-25

Patent #US2756207A

Sea water heating

AI Summary

Inventors

AXELRAD BERNARD A.

1956-07-24

Patent #US1893817A

Electrode cleaning process

AI Summary

Inventors

WOODWARD HERBERT S.

1933-01-10

Patent #US3068189A

Composition comprising a polyvinyl acetal, a phenol-aldehyde resin, a melamine-aldehyde resin adn a polyurethane, process for preparing same, and electrical conductor coa

AI Summary

Inventors

LAVIN EDWARD, MARKHART ALBERT H.

1962-12-11

Patent #US3536879A

Welding system

AI Summary

Inventors

BENOIT J. SIROIS, ERNEST W. HARTSELL JR.

1970-10-27

Patent #US2756029A

Heating systems for water containing dissolved scale-forming solids

AI Summary

Inventors

BROGDON VAS HUBERT

1956-07-24

Patent #US3140915A

Method of inhibiting dissolution of calcium sulfate

AI Summary

Inventors

AXELRAD BERNARD A., MATSON RAPHAEL F., TOURO FREDDIE J.

1964-07-14

Patent #US3544431A

Method for electrolytic refining of metal,such as copper

AI Summary

Inventors

BILL HUGH SPOON

1970-12-01

Patent #US2302615A

Briquette for the addition of molybdenum to ferrous alloys

AI Summary

Inventors

LINZ ARTHUR

1942-11-17

Patent #US2046978A

Hollow cable

AI Summary

Inventors

STAPLES HORACE A.

1936-07-07

Patent #US2819233A

Curing of epoxide resins with a chelate

AI Summary

Inventors

HALL RALPH, SMITH EARL L.

1958-01-07

Patent #US2252576A

Flotation apparatus

AI Summary

Inventors

MACINTOSH JOHN C.

1941-08-12

Patent #US3067063A

Insulated conductor

AI Summary

Inventors

HALL RALPH, HILKER GEORGE DANIEL

1962-12-04

Patent #US2576763A

Vanadium containing briquettes

AI Summary

Inventors

LINZ ARTHUR

1951-11-27

Patent #US3082080A

Leaching of chromium, nickel, cobalt and manganese from ores

AI Summary

Inventors

SIMONS COURTNEY S.

1963-03-19

Patent #US2678272A

Molybdenum-columbium alloys

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., HERZIG ALVIN J., TIMMONS GEORGE A.

1954-05-11

Patent #US2650888A

Metal surface treatment

AI Summary

Inventors

POTTBERG ROLFE

1953-09-01

Patent #US3474911A

filters

AI Summary

Inventors

EDWARD W. OLSEN

1969-10-28

Patent #US3643004A

Corona-resistant solid dielectric cable

AI Summary

Inventors

MCKEAN, ALEXANDER L.

1972-02-15

Patent #US3790530A

Method of making amide-imide resins,aromatic amides and aromatic polyamide resins

AI Summary

Inventors

DISQUE D US, KOERNER E US, WAREHAM W US

1974-02-05

Patent #US2109611A

Process of conditioning, and re-use of mine bleed water in mining sulphur

AI Summary

Inventors

AXELRAD BERNARD A.

1938-03-01

Patent #US3506803A

Method and apparatus for continuous vaporization of liquids

AI Summary

Inventors

THOMAS GORDON HART

1970-04-14

Patent #US2678271A

Molybdenum-zirconium alloys

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., HERZIG ALVIN J., TIMMONS GEORGE A.

1954-05-11

Patent #US2622304A

Refractory

AI Summary

Inventors

COFFER LYNN WALLACE

1952-12-23

Patent #US2228301A

Tube drawing method and apparatus

AI Summary

Inventors

DITZEL OSCAR MARONEY, PETERSEN VICTOR

1941-01-14

Patent #US3804937A

Process for producing an opaque inorganic-organo titanate polymeric film

AI Summary

Inventors

MORRIS H US, PRESCOTT P US

1974-04-16

Patent #US2346382A

Producing tungsten alloys

AI Summary

Inventors

LINZ ARTHUR

1944-04-11

Patent #US3222219A

Ceramic-coated electrically-conductive wire and method of making same

AI Summary

Inventors

GEHRING ROBERT W., SAUNDERS HOLLIS S.

1965-12-07

Patent #US2097446A

Phosphate-sulphur fertilizer and process of making same

AI Summary

Inventors

JR. JOHN T. CLAIBORNE, PETERSON PAUL D.

1937-11-02

Patent #US2750000A

Sulphur-water-air separator

AI Summary

Inventors

JR. JOHN E. SHAW, JR. VAS HUBERT BROGDON, WILLIAMS R. L.

1956-06-12

Patent #US3720750A

Selective recovery of cobalt from an ammoniacal carbonate solution containing cobalt and nickel

AI Summary

Inventors

MILLER D US, WIEWIOROWSKI T US

1973-03-13

Patent #US3447903A

Sulphur production

AI Summary

Inventors

TADEUSZ K. WIEWIOROWSKI

1969-06-03

Patent #US2007008A

Copper zinc alloy containing silicon and iron

AI Summary

Inventors

STAPLES HORACE A.

1935-07-02

Patent #US2771284A

Process for removal of deposits from sulfur mining pipes using hot caustic soda solution

AI Summary

Inventors

JR. JOHN E. MONROE

1956-11-20

Patent #US2678289A

Metal surface treatment

AI Summary

Inventors

NOBLE JAMES HARVEY, POTTBERG ROLFE

1954-05-11

Patent #US2293146A

Enamel composition

AI Summary

Inventors

KAUTZ KARL

1942-08-18

Patent #US2276990A

Powder loading machine

AI Summary

Inventors

LONG ALBERT I.

1942-03-17

Patent #US2285762A

Electrodeposition of copper powder

AI Summary

Inventors

OSBORN WILLIAM H., TUWINER SIDNEY B.

1942-06-09

Patent #US3000727A

Separation of iron impurity from cobalt-bearing solutions

AI Summary

Inventors

MATSON RAPHAEL F.

1961-09-19

Patent #US3455374A

Feed for continuous casting apparatus

AI Summary

Inventors

KURT R. BEHRSIN

1969-07-15

Patent #US2983779A

Coaxial cable connector

AI Summary

Inventors

DUMIRE LEO G., EDLEN GEORGE, HASKELL BORIS

1961-05-09

Patent #US3142478A

Mixing apparatus and method

AI Summary

Inventors

REINBERG GUSTAVE

1964-07-28

Patent #US2831759A

Apparatus and method for producing sponge iron

AI Summary

Inventors

OSBORN WILLIAM HENRY

1958-04-22

Patent #US2556906A

Compression cable system

AI Summary

Inventors

MAR WILLIAM A. DEL

1951-06-12

Patent #US3432030A

Process for treating minerals

AI Summary

Inventors

JAMES P. OLIVIER

1969-03-11

Patent #US3402921A

Apparatus and method of making apparatus for vacuum purification of metals

AI Summary

Inventors

HART THOMAS GORDON

1968-09-24

Patent #US1416262A

Process and apparatus for extracting copper from slag in reverberatory furnaces

AI Summary

Inventors

BUTLER PERCIVAL PAGE, STOUT HARRY HOWARD

1922-05-16

Patent #US2014002A

Molybdenum white iron casting

AI Summary

Inventors

JR. CARL M. LOEB

1935-09-10

Patent #US1961833A

Apparatus for making hollow cables

AI Summary

Inventors

STAPLES HORACE A.

1934-06-05

Patent #US3449567B1

Apparatus and process for determining particle size by x-ray absorption analysis

AI Summary

Inventors

1969-06-10

Patent #US2190017A

Electric cable

AI Summary

Inventors

MAR WILLIAM A. DEL

1940-02-13

Patent #US3737332A

Closed cell clay foam and process for preparing same

AI Summary

Inventors

OLIVIER J US, ROSS S US, SENNETT P US

1973-06-05

Patent #US3413167A

Manufacture of plastic-insulated electrical cable

AI Summary

Inventors

TRILL SIDNEY W.

1968-11-26

Patent #US2161035A

Method of making phosphate-sulphur fertilizer

AI Summary

Inventors

GILBERT HOWARD W.

1939-06-06

Patent #US2126528A

Apparatus for continuous wire drawing

AI Summary

Inventors

BEACH HAROLD K.

1938-08-09

Patent #US2055899A

Core

AI Summary

Inventors

HURT ERNEST D.

1936-09-29

Patent #US3514283A

Process for absorption of undesirable gaseous effluents

AI Summary

Inventors

WILLIAM A. GRIFFITH

1970-05-26

Patent #US3181326A

High-speed production of magnet wire

AI Summary

Inventors

HOLLINGSWORTH HENRY L., LAUSEN VERNE H.

1965-05-04

Patent #US2012830A

Froth flotation process

AI Summary

Inventors

KING CLARENCE R., RALSTON OLIVER C.

1935-08-27

Patent #US2013966A

Metallurgical furnace

AI Summary

Inventors

KUZELL CHARLES R.

1935-09-10

Patent #US2028946A

Gas generator

AI Summary

Inventors

NICONOFF DIMITRY

1936-01-28

Patent #US3822147A

Insulated electrical conductor and coils formed thereof

AI Summary

Inventors

KOERNER E US, WAREHAM W US

1974-07-02

Patent #US2679455A

Methods for heat-treating molybdenum-base alloys

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., HERZIG ALVIN J., TIMMONS GEORGE A.

1954-05-25

Patent #US2345859A

Air scrubber

AI Summary

Inventors

RANDOLPH FRANK M.

1944-04-04

Patent #US2310173A

Method and apparatus for providing a controlled supply of sulphur combustion gases

AI Summary

Inventors

CAIN GORDON A., CHATELAIN JOHN B.

1943-02-02

Patent #US1498071A

Alloy steel

AI Summary

Inventors

BRATTON W NORMAN

1924-06-17

Patent #US2651952A

Die for extruding compressed powder rods

AI Summary

Inventors

LEAVENWORTH EDGAR K.

1953-09-15

Patent #US2463231A

Method of making cable joints

AI Summary

Inventors

WYATT KENNETH SAPWELL

1949-03-01

Patent #US3040288A

Means for connecting metal jacketed coaxial cable

AI Summary

Inventors

DUMIRE LEO GEORGE, EDLEN GEORGE G.

1962-06-19

Patent #US3580024A

Method and apparatus for corrugating tubes

AI Summary

Inventors

MATTIL, HOWARD F.

1971-05-25

Patent #US2657990A

Feeding furnaces

AI Summary

Inventors

KUZELL CHARLES R.

1953-11-03

Patent #US2781635A

Process and heating system for providing hot water and power for sulfur mining

AI Summary

Inventors

BROGDON VAS HUBERT

1957-02-19

Patent #US3832241A

Copper-base alloy containing titanium and antimony

AI Summary

Inventors

NESSLAGE D US, YU L US

1974-08-27

Patent #US2258256A

Electrical insulating material

AI Summary

Inventors

MACKENZIE WALLACE BENTLEY

1941-10-07

Patent #US2933370A

Process for separating nickel and zinc from acidic aqueous solution containing nickel, zinc, and cobalt

AI Summary

Inventors

MATSON RAPHAEL F.

1960-04-19

Patent #US2706675A

Production of hydrogen cyanide

AI Summary

Inventors

CHATELAIN JOHN B.

1955-04-19

Patent #US3208919A

Method and means for measuring electrokinetic potential

AI Summary

Inventors

OLIVIER JAMES P., SENNETT PAUL

1965-09-28

Patent #US2278134A

Recovery of antimony

AI Summary

Inventors

OSBORN WILLIAM H.

1942-03-31

Patent #US3212559A

Method of concentrating liquidcontaining mixtures

AI Summary

Inventors

WILLIAMSON JOHN T.

1965-10-19

Patent #US3737513A

Recovery of uranium from an organic extractant by back extraction with h3po4 or hf

AI Summary

Inventors

MILLER D US, WIEWIOROWSKI T US

1973-06-05

Patent #US2182128A

Metallurgy

AI Summary

Inventors

KUZELL CHARLES R.

1939-12-05

Patent #US2678290A

Process of removing surface oxide films on metal

AI Summary

Inventors

NOBLE JAMES HARVEY, POTTBERG ROLFE

1954-05-11

Patent #US3100700A

Recovery of nickel and cobalt by reduction and leaching

AI Summary

Inventors

HILLS ROBERT C.

1963-08-13

Patent #US3521834A

Dereeling apparatus

AI Summary

Inventors

JOHN C. KAUFFMAN

1970-07-28

Patent #US2169262A

Apparatus for purifying sulphur

AI Summary

Inventors

LEE CLARENCE O., SMITH HOMER A.

1939-08-15

Patent #US3023454A

Hydraulic quenching and granulation of molten materials

AI Summary

Inventors

FOWLER MORRIS G., JR. JOHN H. DAVIS, KLEIN LEONARD, KUZELL CHARLES R., MACDOUGALL IRVINE, UREN WILLIAM J.

1962-03-06

Patent #US1820172A

Process for concentrating ores

AI Summary

Inventors

AYER FRANK, CROWFOOT ARTHUR

1931-08-25

Patent #US2109746A

High speed alloy steel

AI Summary

Inventors

HERZIG ALVIN J.

1938-03-01

Patent #US2441022A

Drying alum

AI Summary

Inventors

KINGSBURY ALBERT W., OSBORN WILLIAM H.

1948-05-04

Patent #US3323339A

Method and apparatus for corrugating tubes

AI Summary

Inventors

MATTIL HOWARD F.

1967-06-06

Patent #US2304197A

Tin recovery process

AI Summary

Inventors

OSBORN WILLIAM H.

1942-12-08

Patent #US2557326A

Purification and recovery of crystals of metal salts

AI Summary

Inventors

TUWINER SIDNEY B.

1951-06-19

Patent #US3381739A

Method and apparatus for processing materials into foil and strip form

AI Summary

Inventors

HART THOMAS GORDON

1968-05-07

Patent #US3682228A

Method of continuous casting with circular trough mold

AI Summary

Inventors

YEARLEY, DOUGLAS C.

1972-08-08

Patent #US2441776A

Process of metal coating metal articles

AI Summary

Inventors

POTTBERG ROLFE, TAINTON URLYN CLIFTON

1948-05-18

Patent #US2937624A

System and process for the heating of waters as for sulfur mining

AI Summary

Inventors

JR. VAS HUBERT BROGDON

1960-05-24

Patent #US2405633A

Grinding mill

AI Summary

Inventors

BARKER LYLE M., LEWIS EVAN G.

1946-08-13

Patent #US2967814A

Helix wire anode

AI Summary

Inventors

TUWINER SIDNEY B.

1961-01-10

Patent #US2375032A

Tensile strength testing apparatus

AI Summary

Inventors

BENS FREDERICK P., PARKE ROBERT M.

1945-05-01

Patent #US2890150A

Cuprous derivatives of substituted cyclic thioureas

AI Summary

Inventors

BALDWIN MAYNARD M.

1959-06-09

Patent #US2290194A

Process of producing molybdenum containing alloys

AI Summary

Inventors

LINZ ARTHUR

1942-07-21

Patent #US2284946A

Form varnish die

AI Summary

Inventors

CHANEY MONT MORELL

1942-06-02

Patent #US1845503A

Pyro-metallurgical process and apparatus

AI Summary

Inventors

LEGRAND CHARLES

1932-02-16

Patent #US3464272A

Continuous slurry sampler and deaerator

AI Summary

Inventors

BENNY RAY BURNS, PAUL EUGENE LINK, WILLIAM ALEXANDER GRIFFITH

1969-09-02

Patent #US1984555A

Flexible electric conductor

AI Summary

Inventors

STAPLES HORACE A.

1934-12-18

Patent #US2190018A

Impregnated paper insulation for electric cables

AI Summary

Inventors

MAR WILLIAM A. DEL

1940-02-13

Patent #US2014598A

Annealing furnace

AI Summary

Inventors

STAPLES HORACE A.

1935-09-17

Patent #US1915485A

Midget mechanical shovel

AI Summary

Inventors

BRUSSOLO VITO A.

1933-06-27

Patent #US3697475A

Inorganic-organo titanate polymeric film

AI Summary

Inventors

HORTON H. MORRIS, PAUL I. PRESCOTT

1972-10-10

Patent #US3572670A

Purification of electrolytic copper

AI Summary

Inventors

HART, THOMAS GORDON

1971-03-30

Patent #US2111789A

Treatment of sulphide ores

AI Summary

Inventors

KUZELL CHARLES R.

1938-03-22

Patent #US1826124A

Method of removing carbonaceous matter from sulphur and improving its color

AI Summary

Inventors

BUSHNELL LYMAN S., MORALES RITA

1931-10-06

Patent #US2952175A

Crimping tool

AI Summary

Inventors

DUMIRE LEO G., EDLEN GEORGE

1960-09-13

Patent #US2154257A

Method for solidifying sulphur

AI Summary

Inventors

AXELRAD BERNARD A., BROOKS DOUGAL A.

1939-04-11

Patent #US1372047A

Process of cleaning converter-slag

AI Summary

Inventors

STOUT HARRY HOWARD

1921-03-22

Patent #US3138656A

Electric cable connection

AI Summary

Inventors

MERRELL EDWIN J.

1964-06-23

Patent #US1612453A

Process for mining sulphur

AI Summary

Inventors

BURNS HOMER S., LUNDY WILSON T.

1926-12-28

Patent #US2124865A

Patching interior surfaces of furnaces

AI Summary

Inventors

KUZELL CHARLES R., MOONEY FRANCIS X., MOUNTS MELVIN T., WINKLER FREDERICK W.

1938-07-26

Patent #US2135189A

Process for producing molybdenum alloys

AI Summary

Inventors

LINZ ARTHUR

1938-11-01

Patent #US3109052A

Connector for coaxial cables

AI Summary

Inventors

DUMIRE LEO G., EDLEN GEORGE

1963-10-29

Patent #US3278269A

Sulphur treatment

AI Summary

Inventors

EKKER FRANK ANTHONY, WIEWIOROWSKI TADEUSZ K.

1966-10-11

Patent #US2520046A

Bonding team for protection against lead sheath corrosion

AI Summary

Inventors

MERRELL EDWIN J.

1950-08-22

Patent #US2632691A

Processes for the cooling of molten sulfur

AI Summary

Inventors

BLANCHET HENRY

1953-03-24

Patent #US2029435A

Apparatus for producing sheathed articles

AI Summary

Inventors

MITCHELL EARLE A., MOODY CHARLES F.

1936-02-04

Patent #US3661756A

Cathode for electrolyte refining of metal,such as copper

AI Summary

Inventors

BILL HUGH SPOON

1972-05-09

Patent #US3081163A

Treating copper matte

AI Summary

Inventors

FOWLER MORRIS G., HAWKINS GEORGE S., KLEIN LEONARD, KUZELL CHARLES R.

1963-03-12

Patent #US2492437A

Stress cone seal for electric cable systems

AI Summary

Inventors

PALMER JOHN H.

1949-12-27

Patent #US2300944A

Process of alloying tungsten with ferrous metals

AI Summary

Inventors

LINZ ARTHUR

1942-11-03

Patent #US2608298A

Selective recovery of molybdenum sulfide by flotation

AI Summary

Inventors

ARBITER NATHANIEL, YOUNG OREL E.

1952-08-26

Patent #US1453993A

Metallurgical refractory material and process of producing the same

AI Summary

Inventors

PAYTON CALVIN

1923-05-01

Patent #US2375033A

Hardness testing apparatus

AI Summary

Inventors

BENS FREDERICK P., PARKE ROBERT M.

1945-05-01

Patent #US3244298A

Automatic reverberatory furnace charging

AI Summary

Inventors

BERRA FELIX G., FOARD JAMES E.

1966-04-05

Patent #US2302616A

Briquette for the addition of tungsten to ferrous alloys

AI Summary

Inventors

LINZ ARTHUR

1942-11-17

Patent #US2278135A

Press

AI Summary

Inventors

OSBORN WILLIAM H.

1942-03-31

Patent #US3603378A

Continuous casting with circular trough mold

AI Summary

Inventors

YEARLEY, DOUGLAS C.

1971-09-07

Patent #US2538702A

Metal surface cleaning

AI Summary

Inventors

NOBLE JAMES HARVEY, POTTBERG ROLFE LLEWELL, TAINTON URLYN CLIFTON

1951-01-16

Patent #US3608615A

Foil production

AI Summary

Inventors

CONLON, JOHN J.

1971-09-28

Patent #US1916196A

Method of treating ores

AI Summary

Inventors

AYER FRANK, CROWFOOT ARTHUR, HERIVEL HAROLD TOURTEL, SORENSEN PAUL MERRICK

1933-07-04

Patent #US3745138A

Bonding composition containing a blocked isocyanate

AI Summary

Inventors

HALL R US, HILKER G US, KOERNER E US, WAREHAM W US

1973-07-10

Patent #US2169261A

Process for purifying sulphur

AI Summary

Inventors

LEE CLARENCE O., SMITH HOMER A.

1939-08-15

Patent #US3409068A

Method of continuously casting tubes using a rotating mandrel

AI Summary

Inventors

JR. HARRY H. STOUT, YEARLEY DOUGLAS C.

1968-11-05

Patent #US3040780A

Multi-component metallic tube and method of making same

AI Summary

Inventors

SIROIS BENOIT J.

1962-06-26

Patent #US2884349A

Removal of calcium sulfate scale

AI Summary

Inventors

AXELRAD BERNARD A.

1959-04-28

Patent #US3230652A

Signboard

AI Summary

Inventors

MCNAIR LYLE W.

1966-01-25

Patent #US3439801A

Process for improving the brightness of clay

AI Summary

Inventors

HORTON H. MORRIS, JAMES P. OLIVIER

1969-04-22

Patent #US2182129A

Metallurgy

AI Summary

Inventors

KUZELL CHARLES R.

1939-12-05

Patent #US2064031A

Concentration of minerals

AI Summary

Inventors

RALSTON OLIVER C.

1936-12-15

Patent #US3180926A

Water-proof coaxial cable with readily separable layer

AI Summary

Inventors

TRILL SIDNEY W.

1965-04-27

Patent #US2353959A

Method for refining sulphur

AI Summary

Inventors

HILLS ROBERT C.

1944-07-18

Patent #US2756035A

Heating of saline water and mining of sulfur therewith

AI Summary

Inventors

AXELRAD BERNARD A., BROGDON VAS HUBERT

1956-07-24

Patent #US3287885A

Air separator for drain pipes

AI Summary

Inventors

SOMMER FRITZ

1966-11-29

Patent #US3148841A

High-speed wire take-up and spool changer

AI Summary

Inventors

HOLLINGSWORTH HENRY L., LAUSEN VERNE H.

1964-09-15

Patent #US2921600A

Means for transferring corrosive liquids

AI Summary

Inventors

LIPPS DELBERT A.

1960-01-19

Patent #US2432568A

Gas filled cable system

AI Summary

Inventors

GAMBITTA ALFRED FILADELFIO

1947-12-16

Patent #US2651649A

Reaction product of a xanthate, an inorganic sulfide, and a copper salt

AI Summary

Inventors

TUWINER SIDNEY B.

1953-09-08

Patent #US2207134A

Ground rod and method of making the same

AI Summary

Inventors

STAPLES HORACE A.

1940-07-09

Patent #US2817504A

Mining of sulfur using hot saline water containing a small percentage of finely divided earthy material

AI Summary

Inventors

AXELRAD BERNARD A.

1957-12-24

Patent #US1973322A

Connecter for hollow cables

AI Summary

Inventors

STAPLES HORACE A.

1934-09-11

Patent #US2809095A

Production of sulfuric acid from dark sulfur

AI Summary

Inventors

HILLS ROBERT C.

1957-10-08

Patent #US3071454A

Apparatus for reforming gases

AI Summary

Inventors

FOWLER MORRIS G., JR. JOHN H. DAVIS, KLEIN LEONARD, KUZELL CHARLES R.

1963-01-01

Patent #US3476576A

Process for obtaining a size reduction of non-lamellar materials

AI Summary

Inventors

HORTON HAROLD MORRIS, KENNETH LAMAR TURNER, PAUL S. SENNETT

1969-11-04

Patent #US3581734A

sphygmomanometer

AI Summary

Inventors

CROSLIN, MICHAEL EMANUEL, KELLER, JOHN RONALD

1971-06-01

Patent #US2713081A

Cable systems

AI Summary

Inventors

MERRELL EDWIN J.

1955-07-12

Patent #US2239370A

Separation of metals by distillation

AI Summary

Inventors

OSBORN WILLIAM H., TUWINER SIDNEY B.

1941-04-22

Patent #US2137619A

Process and apparatus for mining sulphur

AI Summary

Inventors

LEE CLARENCE O.

1938-11-22

Patent #US3129684A

Insulated ship hull

AI Summary

Inventors

COCKRELL CLIFFORD M.

1964-04-21

Patent #US1944864A

Hollow cable

AI Summary

Inventors

HAMCKE ELMER WILLIAM

1934-01-23

Patent #US2176819A

Producing molybdenum orange

AI Summary

Inventors

COFFER LYNN WALLACE, LINZ ARTHUR

1939-10-17

Patent #US2134617A

Alloying molybdenum

AI Summary

Inventors

LINZ ARTHUR

1938-10-25

Patent #US2981595A

Recovery of tellurium

AI Summary

Inventors

TUWINER SIDNEY B.

1961-04-25

Patent #US2145092A

High tension electric cable

AI Summary

Inventors

MITCHELL EARLE A.

1939-01-24

Patent #US3398780A

Continuous casting of tubes

AI Summary

Inventors

YEARLEY DOUGLAS C.

1968-08-27

Patent #US2190013A

Spool

AI Summary

Inventors

BYERS HARRY MANCEL

1940-02-13

Patent #US2239371A

Separation of metals by distillation

AI Summary

Inventors

OSBORN WILLIAM H., SPERR EVELYN, TUWINER SIDNEY B.

1941-04-22

Patent #US3519453A

Clay products and method of producing same

AI Summary

Inventors

HORTON H. MORRIS, KENNETH L. TURNER

1970-07-07

Patent #US2947690A

Heating of sea water for sulfur mining

AI Summary

Inventors

AXELRAD BERNARD A.

1960-08-02

Patent #US2282486A

Alloying steel

AI Summary

Inventors

LINZ ARTHUR

1942-05-12

Patent #US2310187A

Process and apparatus for treating liquids with sulphur combustion gases

AI Summary

Inventors

AXELRAD BERNARD A., POWELL SHEPPARD T.

1943-02-02

Patent #US2678268A

Molybdenum-vanadium alloys

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., HERZIG ALVIN J., TIMMONS GEORGE A.

1954-05-11

Patent #US2415184A

Electric device with electron barrier

AI Summary

Inventors

MERRELL EDWIN JOSEPH

1947-02-04

Patent #US3234171A

Coating compositions

AI Summary

Inventors

BACH HENRY J., KOERNER ERNEST C., MERLACK WILLIAM A., NOLVAK VELLO

1966-02-08

Patent #US2715062A

Method of treating zinc slags

AI Summary

Inventors

OSBORN WILLIAM HENRY

1955-08-09

Patent #US2307944A

Recovery of metal salts

AI Summary

Inventors

OSBORN WILLIAM H., SMITH JOHN R., TUWINER SIDNEY B.

1943-01-12

Patent #US3501292A

Purification of electrolytic copper

AI Summary

Inventors

THOMAS GORDON HART

1970-03-17

Patent #US2610738A

Froth flotation of monazite from heavy gravity minerals

AI Summary

Inventors

CUTHBERTSON ROBERT E.

1952-09-16

Patent #US2310605A

Production of sulphur dioxideolefin resins

AI Summary

Inventors

BARNETT MAXWELL M.

1943-02-09

Patent #US2935427A

Friction magnet wire

AI Summary

Inventors

HALL RALPH, HILKER GEORGE D., SMITH EARL L.

1960-05-03

Patent #US2788289A

Method of forming protective coatings for molybdenum and molybdenum-base alloys

AI Summary

Inventors

DEUBLE NORMAN L.

1957-04-09

Patent #US2040515A

Treatment of steel

AI Summary

Inventors

BARKER LYLE M., FOWLER MORRIS G.

1936-05-12

Patent #US2788290A

Method of forming a protective coating on a molybdenum-base article

AI Summary

Inventors

DEUBLE NORMAN L.

1957-04-09

Patent #US2678270A

Molybdenum-tantalum alloys

AI Summary

Inventors

BENS FREDERICK P., HAM JOHN L., HERZIG ALVIN J., TIMMONS GEORGE A.

1954-05-11

Patent #US3558510A

Method for raising the autogenous ignition temperature of carbon disulfide

AI Summary

Inventors

DAVID J. MILLER, TADEUSZ K. WIEWIOROWSKI

1971-01-26

Patent #US2476372A

Antifouling composition

AI Summary

Inventors

HEIKS RAY E.

1949-07-19

Patent #US2656123A

Crusher with combination feed and crushing screw

AI Summary

Inventors

GUSTAFSON ARNOLD A., SMITH HUBERT L.

1953-10-20

Patent #US3077462A

Isocyanate-polyvinyl formal resin composition and coated wire

AI Summary

Inventors

CROZIER ROBERT N., FITZHUGH ANDREW F., LAVIN EDWARD

1963-02-12

Patent #US1984553A

Flexible electric conductor

AI Summary

Inventors

STAPLES HORACE A.

1934-12-18

Patent #US2258255A

Electrical insulation

AI Summary

Inventors

MACKENZIE WALLACE BENTLEY

1941-10-07

Patent #US3222759A

Process for fabricating a cable system

AI Summary

Inventors

MACKENZIE WALLACE B.

1965-12-14

Patent #US3260694A

Cross-linked chlorinated polyethylene

AI Summary

Inventors

WANG LEOPOLD T.

1966-07-12

Patent #US3446348A

Process for treating clay

AI Summary

Inventors

JAMES P. OLIVIER, PAUL SENNETT

1969-05-27

Patent #US2259420A

Flotation process for oxidized manganese ore

AI Summary

Inventors

HILLS ROBERT C.

1941-10-14

Patent #US2947689A

Saline water heating processes and systems

AI Summary

Inventors

CAIN GORDON A.

1960-08-02

Patent #US1834065A

Liquid and gas separator

AI Summary

Inventors

LEE CLARENCE O.

1931-12-01

Patent #US3318718A

Acid treatment of calcined kaolin

AI Summary

Inventors

BEAMESDERFER JOHN W., MORRIS HORTON H.

1967-05-09

Patent #US2406676A

Cable joint

AI Summary

Inventors

GAMBITTA ALFRED FILADELFIO

1946-08-27

Patent #US2981603A

Recovery of selenium from electrolytic copper refinery slimes

AI Summary

Inventors

TUWINER SIDNEY B.

1961-04-25

Patent #US3024584A

Apparatus for packaging annular articles

AI Summary

Inventors

WOHLFORTH RALPH L.

1962-03-13

Patent #US3699082A

Method of processing preformed polyester resins and converting to coating materials

AI Summary

Inventors

ERNEST C. KOERNER, ROBERT T. TRICE, WILLIAM W. WAREHAM

1972-10-17

Patent #US2941868A

Purification of crude sulfur

AI Summary

Inventors

JR. VAS HUBERT BROGDON, OLSEN EDWARD W.

1960-06-21

Patent #US3355259A

Process for melting sulfur

AI Summary

Inventors

BEST JAMES D., LIPPS DELBERT A., RUBERO PAUL A.

1967-11-28

Patent #US2432603A

Segmental cable

AI Summary

Inventors

ZINK GEORGE WILLARD

1947-12-16

Patent #US2941028A

Solderless coaxial cable fitting

AI Summary

Inventors

EDLEN GEORGE G., PHIPPS DONALD W.

1960-06-14

Patent #US2972004A

Cable joint casing

AI Summary

Inventors

MERRELL EDWIN J., RUSSBACH RAYMOND A.

1961-02-14

Patent #US2971835A

Recovery of nickel and cobalt from mixtures of the same with iron sulfide, as impurity

AI Summary

Inventors

MATSON RAPHAEL F.

1961-02-14

Patent #US2135675A

Apparatus for determining and recording the eccentricity of lead sheaths or other conducting pipe

AI Summary

Inventors

PALMER JOHN HUNTER

1938-11-08

Patent #US2375034A

Apparatus for high temperature tensile testing of materials

AI Summary

Inventors

SEMCHYSHEN MARION M.

1945-05-01

Patent #US3531251A

Recovering elemental sulfur from waters containing hydrogen sulfide

AI Summary

Inventors

VAS HUBERT BROGDON

1970-09-29

Patent #US3430479A

Apparatus for simultaneously pressing a plurality of cathode sheets

AI Summary

Inventors

ANTHONY ALLAN MONTROSE, BILL HUGH SPOON, MARION S. BELL

1969-03-04

Patent #US2058259A

Electrodeposition of metal

AI Summary

Inventors

RALSTON OLIVER C., UREN WILLIAM JOHN

1936-10-20

Patent #US3486550A

Continuous casting of tubes

AI Summary

Inventors

DOUGLAS C. YEARLEY

1969-12-30

Patent #US2464455A

Electrical insulation

AI Summary

Inventors

MACKENZIE WALLACE BENTLEY

1949-03-15

Patent #US2664199A

Flotation recovery of molybdenite

AI Summary

Inventors

BARKER LYLE M., YOUNG OREL E.

1953-12-29

Patent #US2381675A

Briquettes for alloying

AI Summary

Inventors

LINZ ARTHUR

1945-08-07

Patent #US3040703A

Apparatus for coating magnet wire and the like

AI Summary

Inventors

LAUSEN VERNE H.

1962-06-26

Patent #US3427394A

High voltage cable

AI Summary

Inventors

ALEXANDER L. MCKEAN

1969-02-11

Patent #US2157377A

Electric cable

AI Summary

Inventors

ZINK GEORGE W.

1939-05-09

Patent #US1992639A

Method of making electrical conductors

AI Summary

Inventors

STAPLES HORACE A.

1935-02-26

Patent #US3022200A

Magnet wire and method of making same

AI Summary

Inventors

KOERNER ERNEST C., SMITH EARL L.

1962-02-20

Patent #US2759328A

Pressurized heater for producing hot process water in large quantities from scale-forming water

AI Summary

Inventors

COCKRELL CLIFFORD M.

1956-08-21

Patent #US3575399A

Apparatus for purification of copper

AI Summary

Inventors

HART, THOMAS GORDON

1971-04-20

Patent #US3582416A

Manufacture of electric cable

AI Summary

Inventors

EDWIN J. MERRELL

1971-06-01

Patent #US3171718A

Delaminated domestic sedimentary clay products and method of preparation thereof

AI Summary

Inventors

GUNN FRED A., MORRIS HORTON H.

1965-03-02

Patent #US3018883A

Packaging of coiled tubes

AI Summary

Inventors

WOHLFORTH RALPH L.

1962-01-30

Patent #US3633339A

Recovery of sulfur dioxide from a sulfur dioxide-containing aqueous ammonium phosphate solution

AI Summary

Inventors

VINCENT, JOHN ROSS, WIEWIOROWSKI, TADEUSZ K.

1972-01-11

Patent #US3386494A

Continuous casting vibrating system

AI Summary

Inventors

AUDI HENRI H., YEARLEY DOUGLAS C.

1968-06-04

Patent #US2220482A

Prefabricated bathroom

AI Summary

Inventors

FULLER RICHARD BUCKMINSTER

1940-11-05

Patent #US3558509A

Means for raising the autogenous ignition temperature of carbon disulfide

AI Summary

Inventors

DAVID J. MILLER, TADEUSZ K. WIEWIOROWSKI

1971-01-26

Patent #US2902345A

Separate recovery of nickel and cobalt from mixed compounds containing the same

AI Summary

Inventors

HYDE RICHARD W., III GEORGE FEICK

1959-09-01

Patent #US3168396A

Recovery of mineral values from ore

AI Summary

Inventors

BARKER LYLE M.

1965-02-02

Patent #US3411182A

Apparatus for extruding helical webs on conductors

AI Summary

Inventors

NEVIN JOHN J.

1968-11-19

Patent #US2389678A

Powder fiber sheet

AI Summary

Inventors

MERRELL EDWIN JOSEPH

1945-11-27

Patent #9982321 B2

SYSTEMS AND METHODS FOR MONITORING METAL RECOVERY SYSTEMS

AI Summary

Various embodiments provide a leaching solution monitor- ing module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regu- lator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

Inventors

Chase Zenner, Christopher Wooten, John Warren Dean

May 29, 2018

Patent #9914224 B2

HAND-HELD CABLE HANDLING DEVICE AND METHOD

AI Summary

A cable handling device may include a clamp assembly having a first member having a jaw end and an arm end and a second member having a jaw end and an arm end. The first and second members of the clamp assembly are pivotally connected together so that when the arm ends are moved away from one another the jaw ends move away from one another and vice-versa. A proximal end of a first elongate electrically insulated handle is mounted to the arm end of the first member of the clamp assembly. A proximal end of a second elongate electrically insulated handle is mounted to the arm end of the second member of the clamp assembly.

Inventors

Frank E. Baptiste

Mar. 13, 2018

Patent #9856570 B2

SYSTEM AND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a process and system for recovery of one or more metal values using solution extrac- tion techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary

Inventors

Anand Raman, Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Jan. 2, 2018

Patent #9447483 B2

SYSTEM AND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a process and system for recovery of one or more metal values using solution extrac- tion techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extrac- tion circuits have independent organic phases and each circuit can operate independently of the other circuit.

Inventors

Anand Raman, Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Sep. 20, 2016

Patent #9340849 B2

SYSTEMS AND METHODS FOR METAL RECOVERY

AI Summary

Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.

Inventors

David R Baughman, Jay C Smith, Joanna M Robertson, Lawrence D May, Thomas R Bolles, Wayne W Hazen

May 17, 2016

Patent #9187803 B2

SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING

AI Summary

Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.

Inventors

Dennis D Gertenbach, Joanna M Robertson, Thomas R Bolles

Nov. 17, 2015

Patent #9175366 B2

SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING

AI Summary

Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbon- ate, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.

Inventors

Dennis D Gertenbach, Joanna M Robertson, Thomas R Bolles

Nov. 3, 2015

Patent #9169533 B2

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (““HGPLS”) is provided to the first and second cir- cuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recov- ery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit pro- duces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

Inventors

Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Oct. 27, 2015

Patent #9023313 B2

SYSTEMAND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL-BEARING MATERLALS

AI Summary

The present disclosure relates to a process and system for recovery of one or more metal values using solution extrac- tion techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system com- prises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solu- tion is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.

Inventors

Anand Raman, Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

May 5, 2015

Patent #8920773 B2

SYSTEMS AND METHODS FOR METAL RECOVERY

AI Summary

Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, leaching the roasted metal hearing material in a basic medium to yield a pregnant leach solution, conditioning the pregnant leach solution to thrill a preprocessed metal bearing material; and leaching the pre- processed metal bearing material in acid medium.

Inventors

David R. Baughman, Jay C. Smith, Joanna M. Robertson, Lawrence D. May, Thomas R. Bolles, Wayne W. Hazen

Dec. 30, 2014

Patent #8828353 B2

CONTROLLED COPPER LEACH RECOVERY CIRCUIT

AI Summary

The present invention relates generally to a process for con- trolled leaching and sequential recovery of two or more met- als from metal-bearing materials. In one exemplary embodi- ment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution (“HGPLS”) and a low grade pregnant leach solution (““LGPLS”) to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.

Inventors

Barbara J. Savage, David G. Meadows, Wayne W. Hazen

Sep. 9, 2014

Patent #8574440 B2

METHOD AND ARTICLE OF MANUFACTURE FOR SOLVENT EXTRACTION OPERATION

AI Summary

The present invention relates to a method and article for manipulating an amount of organic material entrained in an aqueous phase of a solvent extraction process. The method includes estimating an interfacial shear stress between an aqueous phase and an organic phase of a solvent extraction apparatus, estimating an amount of organic material entrained in the aqueous phase based on the estimated inter- facial shear stress, and manipulating one or more solvent extraction process parameters to manipulate the amount of organic material entrained in the aqueous phase. The method and apparatus can be used to improve performance of and reduce operating costs associated with the solvent extraction apparatus.

Inventors

Charles Lorenzo Bryce, Jason Moore Morgan, Rosemary Dawn Blosser, Willian Ryan Sircy

Nov. 5, 2013

Patent #8506673 B2

SLCA REMOVAL FROM PREGNANT LEACH SOLUTIONS

AI Summary

The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodi- ment of the present invention relates to a, process which mixes PLS with an acid source, preferably lean electrolyte, to induce formation of colloidal silica that can then be collected and removed. Additionally, in an exemplary embodiment of the present invention, at least one silica seeding agent is added to induce formation of colloidal silica, at least one flocculant is added to induce aggregation of the colloidal silica, and a solid-liquid separation process is utilized to remove advanta- geous amounts or substantially all of the colloidal silica, thereby providing relief from supersaturation of dissolved silica in the metal recovery processes.

Inventors

David R Baughman, Dennis D Gertenbach, George Owusu, James D Gillaspie, John C Wilmot, Wayne W Hazen

Aug. 13, 2013

Patent #8491701 B2

METHODS AND SYSTEMS FOR LEACHINGA METAL-BEARING ORE FOR THE RECOVERY OF AMETAL VALUE

AI Summary

A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglom- erated ore. In an intermediate state, between agglomeration and heap formation, bacteria can be added to the metal- bearing ore material to produce an augmented ore. The aug- mented ore can then be formed into a heap.

Inventors

Cristian Alejandro Caro Matus, Gabe Bowman, John Lawrence Uhrie, Manuel Chavez, Perey Mayta, Scott Hoenecke

Jul. 23, 2013

Patent #8491700 B2

METHODS AND SYSTEMS FOR RECOVERING RHENIUM FROM A COPPER LEACH

AI Summary

Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bear- ing solution to an activated carbon bed, and adsorbing rhe- nium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhe- nium from the activated carbon with the heated elution solu- tion. The methods can also incorporate an ion exchange as a rhenium recovery apparatus.

Inventors

Brett T. Waterman, George Owusu, Stefka Todorova Ormsby, Steve Nels Dixon, Theresa Linne Morelli

Jul. 23, 2013

Patent #8420048 B1

SYSTEMAND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL-BEARING MATERLALS

AI Summary

The present disclosure relates to a process and system for recovery of one or more metal values using solution extrac- tion techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system com- prises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solu- tion is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.

Inventors

Anand Raman, Barbara J Savage, David G Meadows, Jason M. Morgan, Wayne W Hazen

Apr. 16, 2013

Patent #8372361 B2

COPPER RECOVERY CIRCUIT

AI Summary

The present invention relates generally to a process for con- trolled leaching and sequential recovery of two or more met- als from metal-bearing materials. In one exemplary embodi- ment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution (“HGPLS”) and a low grade pregnant leach solution (““LGPLS”) to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.

Inventors

Barbara J. Savage, David G. Meadows, Wayne W. Hazen

Feb. 12, 2013

Patent #8372360 B2

CONTROLLED METAL LEACH RECOVERY CIRCUIT

AI Summary

The present invention relates generally to a process for con- trolled leaching and sequential recovery of two or more met- als from metal-bearing materials. In one exemplary embodi- ment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution (“HGPLS”) and a low grade pregnant leach solution (““LGPLS”) to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.

Inventors

Barbara J. Savage, David G. Meadows, Wayne W. Hazen

Feb. 12, 2013

Patent #8361192 B2

METHODS AND SYSTEMS FOR RECOVERING RHENIUM FROM A COPPER LEACH

AI Summary

Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bear- ing solution to an activated carbon bed, and adsorbing rhe- nium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhe- nium from the activated carbon with the heated elution solu- tion.

Inventors

Brett T. Waterman, George Owusu, Stefka Todorova Ormsby, Steve Nels Dixon, Theresa Linne Morelli

Jan. 29, 2013

Patent #8308920 B2

DOUBLE CONTACT BAR INSULATOR ASSEMBLY FOR ELECTROWINNING OF A METAL

AI Summary

In various embodiments, the present invention provides an electrolytic cell contact bar having a first pole and a pair of second poles. The second poles are opposite in charge to the first pole and each of the pair of second poles are adjacent to and parallel to the first pole. In various embodiments, the contact bar may include an electrode holder capable of hold- ing at least one electrode.

Inventors

Bret Ashford, Fernando D Mollo Vega, Samuel Rasmussen, Scot P Sandoval, Timothy G Robinson, William A Ebert

Nov. 13, 2012

Patent #8273237 B2

METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING AN ATMOSPHERIC LEACH WITH FERROUS/FERRIC ANODE REACTION ELECTROWINNING

AI Summary

The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning using the ferrous/ferric anode reaction, and the synergistic addition of ferrous iron to the leach step.

Inventors

James D. Gillaspie, John C. Wilmot, John O. Marsden

Sep. 25, 2012

Patent #8187450 B2

METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING FERROUS/FERRIC ANODE REACTION

AI Summary

The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous/ferric anode reaction. In general, the use of a flow- through anode—coupled with an effective electrolyte circu- lation system—enables the efficient and cost-effective opera- tion of a copper electrowinning system employing the ferrous/ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A/m?), and reduces acid mist generation. Furthermore, the use of such a system per- mits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially saleable product (i.e., LME Grade A copper cathode or equivalent), which is advan- tageous.

Inventors

Paul Richard Cook, Scot Philip Sandoval, Timothy George Robinson

May 29, 2012

Patent #8118907 B2

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING ORE FOR THE RECOVERY OF A METAL VALUE

AI Summary

A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglom- erated ore. In an intermediate state, between agglomeration and heap formation, bacteria can be added to the metal- bearing ore material to produce an augmented ore. The aug- mented ore can then be formed into a heap.

Inventors

Cristian Alejandro Caro Matus, Gabe Bowman, John Lawrence Uhrie, Manuel Chavez, Perey Mayta, Scott Hoenecke

Feb. 21, 2012

Patent #8114365 B2

SILICA REMOVAL FROM PREGNANT LEACH SOLUTIONS

AI Summary

The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodi- ment of the present invention relates to a process which mixes PLS with an acid source, preferably lean electrolyte, to induce formation of colloidal silica that can then be collected and removed. Additionally, in an exemplary embodiment of the present invention, at least one silica seeding agent is added to induce formation of colloidal silica, at least one flocculant is added to induce aggregation of the colloidal silica, and a solid-liquid separation process is utilized to remove advanta- geous amounts or substantially all of the colloidal silica, thereby providing relief from supersaturation of dissolved silica in the metal recovery processes.

Inventors

David R. Baughman, Dennis D. Gertenbach, George Owusu, James D. Gillaspie, John C. Wilmot, Wayne W. Hazen

Feb. 14, 2012

Patent #8029208 B1

APPARATUS AND METHOD FOR COVERING A SURFACE OF A BODY OF WATER TO INHIBIT EVAPORATION

AI Summary

A cover structure for covering a portion ofa surface ofa body of water includes a first plate having a brim, a second plate having a brim, the second plate overlying and spaced apart from the first plate, a support structure coupling the first plate to the second plate, and the cover structure having a specific gravity for maintaining the first plate in a position covering a portion of the surface of a body of water, and maintaining the second plate below the portion of the surface of the body of water.

Inventors

Ari Gabriel Partanen, Darin Michael Lee, Eric William Ebert, Tamara Butler Johndrow, Timothy George Robinson, Todd Jason Ebert, William Arthur Ebert

Oct. 4, 2011

Patent #8026848 B2

RADIO-BASED POSITION LOCATION SYSTEMS, ANTENNA CONFIGURATIONS AND METHODS FOR DETERMINING ANTENNA CONFIGURATIONS

AI Summary

A radio-based position location system for determining a relative position of a first object with respect to a second object may include a first radio operatively associated with the first object. A first directional antenna having at least a high gain region is mounted to the second object so that the high gain region is directed generally outwardly from the second object and defines a first detection zone. A second directional antenna having at least a high gain region is also mounted to the second object and is oriented so that the high gain region is also directed generally outwardly and defines a second detection zone. A second radio connected to the first and second directional antennas exchanges radio signals with at least the first radio to determine the relative position of the first object with respect to the second object at least in part by determining a time-of-flight of a radio signal. The radio sig- nals are primarily exchanged via the first directional antenna when the first object is in the first detection zone, whereas the radio signals are primarily exchanged via the second direc- tional antenna when the first object is in the second detection

Inventors

James Edward Hanson

Sep. 27, 2011

Patent #8016983 B2

SYSTEM AND METHOD FOR PRODUCING COPPER POWDER BY ELECTROWINNING IN A FLOW-THROUGH ELECTROWINNING CELL

AI Summary

This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) in a flow- through electrowinning cell. The present invention enables the production of high quality metal powders, including cop- per powder, from metal-containing solutions using conven- tional electrowinning processes and/or direct electrowinning.

Inventors

Antonioni C. Stevens, John O. Marsden, Scot P. Sandoval, Stanley R. Gilbert, Timothy G. Robinson

Sep. 13, 2011

Patent #8012318 B2

PROCESS FOR MULTIPLE STAGE DIRECT ELECTROWINNING OF COPPER

AI Summary

A system and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction tech- niques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of provid- ing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, condi- tioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in mul- tiple electrowinning stages, without subjecting the copper- containing solution to solvent/solution extraction prior to electrowinning.

Inventors

Christel M. A. Bemelmans, David R Baughman, Joanna M Robertson, John O Marsden, Philip Thompson, Robert E Brewer, Susan R Brewer, Wayne W Hazen

Sep. 6, 2011

Patent #8003064 B2

CONTROLLED COPPER LEACH RECOVERY CIRCUIT

AI Summary

The present invention relates generally to a process for con- trolled leaching and sequential recovery of two or more met- als from metal-bearing materials. In one exemplary embodi- ment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution (“HGPLS”) and a low grade pregnant leach solution (““LGPLS”) to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.

Inventors

Barbara J. Savage, David G. Meadows, Wayne W. Hazen

Aug. 23, 2011

Patent #7993501 B2

DOUBLE CONTACT BAR INSULATOR ASSEMBLY FOR ELECTROWINNING OF A METAL AND METHODS OF USE THEREOF

AI Summary

In various embodiments, the present invention provides an electrolytic cell contact bar having a first pole and a pair of second poles. The second poles are opposite in charge to the first pole and each of the pair of second poles are adjacent to and parallel to the first pole. In various embodiments, the contact bar may include an electrode holder capable of hold- ing at least one electrode.

Inventors

Bret Ashford, Fernando D Mollo Vega, Samuel Rasmussen, Scot P Sandoval, Timothy G Robinson, William A Ebert

Aug. 9, 2011

Patent #7963014 B2

METHOD FOR RETROFITTING AN EXISTING IDLER ASSEMBLY

AI Summary

A method for retrofitting a piece of equipment having a flex- ible track assembly is disclosed and may include disassem- bling an existing idler shaft from an idler gear and from at least one bearing block attached to the piece of equipment. The method may also include attaching a sleeve within the opening of the idler gear. A new idler shaft may then be positioned within an opening of at least one of the bearing blocks and within an opening in the sleeve. The new idler shaft and idler gear being configured such that the new idler shaft, idler gear, and sleeve rotate together. The method may then include placing at least one bushing liner within the opening of at least one bearing block and attaching a retaining device to at least one end of the new idler shaft to retain the new idler shaft axially.

Inventors

Chris Peralta, Edwin Bradberry, Leeland Boday

Jun. 21, 2011

Patent #7824633 B2

SYSTEMAND METHOD FOR CONVERSION OF MOLYBDENITE TO ONE ORMORE MOLYBDENUMOXDES

AI Summary

A system and method for producing molybdenum oxide(s) from molybdenum sulfide are disclosed. The system includes a pressure leach vessel, a solid-liquid separation stage coupled to the pressure leach vessel, a solvent-extraction stage coupled to the solid-liquid separation stage, and a base stripping stage coupled to the solvent-extraction stage. The method includes providing a molybdenum sulfide feed, sub- jecting the feed to a pressure leach process, subjecting pres- sure leach process discharge to a solid-liquid separation pro- cess to produce a discharge liquid stream and a discharge solids stream, and subjecting the discharge liquid stream to a solvent extraction and a base strip process.

Inventors

Chris Easton, John C. Wilmot, Peter Amelunxen, Wayne W. Hazen

Nov. 2, 2010

Patent #7736488 B2

PROCESS FOR RECOVERY OF COPPER FROM COPPER-BEARING MATERIAL USING PRESSURE LEACHING, DIRECT ELECTROWINNING AND SOLVENT/SOLUTION EXTRACTION

AI Summary

The present invention relates generally to a process for recov- ering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pres- sure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autog- enous process for recovering copper from chalcopyrite-con- taining ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.

Inventors

Christel M. A. Bemelmans, David R Baughman, Joanna M Robertson, John O Marsden, Philip Thompson, Robert E Brewer, Susan R Brewer, Wayne W Hazen

Jun. 15, 2010

Patent #7736487 B2

PROCESS FOR RECOVERY OF COPPER FROM COPPER-BEARNG MATERAL USING PRESSURE LEACHING, DIRECT ELECTROWINNING AND SOLUTION EXTRACTION

AI Summary

The present invention relates generally to a process for recov- ering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pres- sure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autog- enous process for recovering copper from chalcopyrite-con- taining ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.

Inventors

Christy Green, David R. Baughman, John C. Wilmot, John O. Marsden, Wayne W. Hazen

Jun. 15, 2010

Patent #7736486 B2

SYSTEM AND METHOD FOR PRODUCING COPPER POWER BY ELECTROWINNING IN A FLOW-THROUGH ELECTROWINNING CELL

AI Summary

This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) in a flow- through electrowinning cell. The present invention enables the production of high quality metal powders, including cop- per powder, from metal-containing solutions using conven- tional electrowinning processes and/or direct electrowinning.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Jun. 15, 2010

Patent #7736476 B2

SYSTEM AND METHOD FOR PRODUCING METAL POWDER BY ELECTROWINNING

AI Summary

This invention relates to a system and method for producing a metal powder product using either conventional electrow- inning or alternative anode reaction chemistries in a flow- through electrowinning cell. The present invention enables the production of high quality metal powders, including cop- per powder, from metal-containing solutions using conven- tional electrowinning processes, direct electrowinning, or alternative anode reaction chemistries.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Jun. 15, 2010

Patent #7736475 B2

SYSTEM AND METHOD FOR PRODUCING COPPER POWDER BY ELECTROWINNING USING THE FERROUS/FERRIC ANODE REACTION

AI Summary

The present invention relates, generally, to a method for elec- trowinning copper powder, and more particularly to a method for electrowinning copper powder from a copper-containing solution using the ferrous/ferric anode reaction. In accor- dance with various embodiments of the present invention, a process for producing copper powder by electrowinning employs alternative anode reaction technology, namely, the ferrous/ferric anode reaction, and enables the efficient and cost-effective production of copper powder at a total cell voltage of less than about 1.5 V and at current densities of greater than 50 A/ft?. A copper powder electrowinning pro- cess in accordance with the present invention also reduces or eliminates acid mist generation that is characteristic of elec- trowinning operations utilizing conventional electrowinning chemistry (e.g., oxygen evolution at the anode), which is advantageous.

Inventors

Antonioni C Stevens, John O Marsden, Seot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Jun. 15, 2010

Patent #7722756 B2

PROCESS FOR MULTIPLE STAGE DIRECT ELECTROWINNING OF COPPER

AI Summary

A system and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction tech- niques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of provid- ing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, condi- tioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in mul- tiple electrowinning stages, without subjecting the copper- containing solution to solvent/solution extraction prior to electrowinning.

Inventors

Christel M. A. Bemelmans, David R Baughman, Joanna M Robertson, John O Marsden, Philip Thompson, Robert E Brewer, Susan R. Brewer, Wayne W Hazen

May 25, 2010

Patent #7704354 B2

METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING THE FERROUS/FERRIC ANODE REACTION

AI Summary

The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous/ferric anode reaction. In general, the use of a flow- through anode—coupled with an effective electrolyte circu- lation system—enables the efficient and cost-effective opera- tion of a copper electrowinning system employing the ferrous/ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A/m?), and reduces acid mist generation. Furthermore, the use of such a system per- mits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially saleable product (i.e., LME Grade A copper cathode or equivalent), which is advan- tageous.

Inventors

Paul Richard Cook, Scot Philip Sandoval, Timothy George Robinson

Apr. 27, 2010

Patent #7691347 B2

SILICA REMOVAL FROM PREGNANT LEACH SOLUTIONS

AI Summary

The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodi- ment of the present invention relates to a process which mixes PLS with an acid source, preferably lean electrolyte, to induce formation of colloidal silica that can then be collected and removed. Additionally, in an exemplary embodiment of the present invention, at least one silica seeding agent is added to induce formation of colloidal silica, at least one flocculant is added to induce aggregation of the colloidal silica, and a solid-liquid separation process is utilized to remove advanta- geous amounts or substantially all of the colloidal silica, thereby providing relief from supersaturation of dissolved silica in the metal recovery processes.

Inventors

David R. Baughman, Dennis D. Gertenbach, George Owusu, James D. Gillaspie, John C. Wilmot, Wayne W. Hazen

Apr. 6, 2010

Patent #7666371 B2

METHOD FOR RECOVERING METAL VALUES FROM METAL-CONTAINING MATERIALS USING HIGH TEMPERATURE PRESSURE LEACHING

AI Summary

The present invention relates generally to a process for recov- ering copper and other metal values from metal-containing materials through pressure leaching operations. In accor- dance with the various aspects of the present invention, metal- containing pregnant leach solutions from pressure leaching operations need not be significantly diluted to facilitate effec- tive metal recovery using solvent extraction and electrowin- ning.

Inventors

David R Baughman, Joanna M Robertson, John O Marsden, Philip Thompson, Robert E Brewer, Wayne W Hazen

Feb. 23, 2010

Patent #7656311 B2

POSITION TRACKING AND PROXIMITY WARNING SYSTEM

AI Summary

A position tracking system for determining a position of a vehicle. The position tracking system invention includes at least two position-enabled mesh nodes mounted to the vehicle and a mesh network operatively associated with the at least two position-enabled mesh nodes mounted to the vehicle. The mesh network is configured to determine a position of the vehicle based on signals received from the at least two posi- tion-enabled mesh nodes mounted to the vehicle. The posi- tion tracking system also includes a display system, which is operatively associated with the mesh network and which dis- plays the position of the vehicle.

Inventors

Donald W. Treadaway, James Edward Hanson, Jennifer D. Carpenter, Mark W. Bartlett, Robert D. Coyle, Russell Armbrust, Steve L. Williamson, Steven C. Holmes

Feb. 2, 2010

Patent #7644999 B2

IDLER ASSEMBLY, AND METHOD FOR RETROFITTING AN EXISTING IDLER ASSEMBLY

AI Summary

An idler assembly is disclosed for a shovel having a flexible track assembly. In an embodiment, the idler assembly com- prises an idler gear operatively associated with the track assembly; a sleeve; a shaft, sets of splines on the shaft and on the sleeve sized for engagement, and connectors at ends of the shaft; at least one bearing block forming a bore therethrough; at least one bushing liner disposed within at least one bearing block; and at least one retaining device for constraining the shaft from withdrawal from the bearing block. A method for retrofitting a shovel with an existing idler assembly is dis- closed. In an embodiment, the method comprises positioning at least one bushing liner within a bore of at least one bearing block; attaching an idler shaft and an idler gear together; and positioning the idler shaft within the at least one bushing liner.

Inventors

Chris Peralta, Edwin Bradberry, Leeland Boday

Jan. 12, 2010

Patent #7591934 B2

APPARATUS FOR PRODUCING METAL POWDER BY ELECTROWINNING

AI Summary

This invention relates to an apparatus for producing a metal powder product using either conventional electrowinning or alternative anode reaction chemistries in a flow-through elec- trowinning cell. A new design for a flow-through electrowin- ning cell that employs both flow-through anodes and flow- through cathodes is described. The present invention enables the production of high quality metal powders, including cop- per powder, from metal-containing solutions using conven- tional electrowinning processes, direct electrowinning, or alternative anode reaction chemistry.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Sep. 22, 2009

Patent #7517384 B2

METHOD FOR IMPROVING METALS RECOVERY USING HIGH TEMPERATURE PRESSURE LEACHING

AI Summary

The present invention is directed to a system for recovering metal values from metal-bearing materials. During a reactive process, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or otherwise encapsulate the metal value, thereby reducing the amount of desired metal values partially or completely encap- sulated by such material. The seeding agent may be generated in a number of ways, including the recycling of residue or the introduction of foreign substances. Systems embodying aspects of the present invention may be beneficial for recov- ering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, zinc, rhenium, uranium, rare earth met- als, and platinum group metals from any metal-bearing mate- rial, such as ores and concentrates.

Inventors

David R. Baughman, Joanna M. Robertson, John O. Marsden, Philip Thompson, Robert E. Brewer, Roland Schmidt, Wayne W. Hazen

Apr. 14, 2009

Patent #7494580 B2

SYSTEMAND METHOD FOR PRODUCING COPPER POWDER BY ELECTROWINNING USING THE FERROUSAFERRICANODE REACTION

AI Summary

The present invention relates, generally, to a method for elec- trowinning copper powder, and more particularly to a method for electrowinning copper powder from a copper-containing solution using the ferrous/ferric anode reaction. In accor- dance with various embodiments of the present invention, a process for producing copper powder by electrowinning employs alternative anode reaction technology, namely, the ferrous/ferric anode reaction, and enables the efficient and cost-effective production of copper powder at a total cell voltage of less than about 1.5 V and at current densities of greater than 50 A/ft?. A copper powder electrowinning pro- cess in accordance with the present invention also reduces or eliminates acid mist generation that is characteristic of elec- trowinning operations utilizing conventional electrowinning chemistry (e.g., oxygen evolution at the anode), which is advantageous.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Feb. 24, 2009

Patent #7485216 B2

PROCESS FOR RECOVERY OF COPPER FROM COPPER-BEARNG MATERAL USING PRESSURE LEACHING, DIRECT U.S. PATENT DOCUMENTS ELECTROWINNING AND SOLVENTASOLUTION EXTRACTION

AI Summary

The present invention relates generally to a process for recov- ering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pres- sure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autog- enous process for recovering copper from chalcopyrite-con- taining ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.

Inventors

Christel M. A. Bemelmans, David R. Baughman, Joanna M. Robertson, John O. Marsden, Philip Thompson, Robert E. Brewer, Susan R. Brewer, Wayne W. Hazen

Feb. 3, 2009

Patent #7476308 B2

PROCESS FOR MULTIPLE STAGE DIRECT ELECTROWINNING OF COPPER

AI Summary

A system and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction tech- niques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of provid- ing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, condi- tioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in mul- tiple electrowinning stages, without subjecting the copper- containing solution to solvent/solution extraction prior to electrowinning.

Inventors

Christel M. A. Bemelmans, David R. Baughman, Joanna M. Robertson, John O. Marsden, Phillip Thompson, Robert E. Brewer, Wayne W. Hazen

Jan. 13, 2009

Patent #7473413 B2

METHOD FOR RECOVERING METAL VALUES FROMMETAL-CONTAINING MATERALS USING HIGH TEMPERATURE PRESSURE LEACHING

AI Summary

The present invention relates generally to a process for recov- ering copper and other metal values from metal-containing materials through pressure leaching operations. In accor- dance with the various aspects of the present invention, metal- containing pregnant leach solutions from pressure leaching operations need not be significantly diluted to facilitate effec- tive metal recovery using solvent extraction and electrowin- ning.

Inventors

David R. Baughman, Joanna M. Robertson, John O. Marsden, Philip Thompson, Robert E. Brewer, Wayne W. Hazen

Jan. 6, 2009

Patent #7462272 B2

PROCESS FOR MULTIPLESTAGE DIRECT ELECTROWINNING OF COPPER

AI Summary

A system and process for recovering copper from a copper- containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction tech- niques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of provid- ing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, condi- tioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in mul- tiple electrowinning stages, without subjecting the copper- containing solution to solvent/solution extraction prior to electrowinning.

Inventors

Christel M. A. Bemelmans, David R. Baughman, Joanna M. Robertson, John O. Marsden, Philip Thompson, Robert E. Brewer, Wayne W. Hazen, by Susan R. Brewer

Dec. 9, 2008

Patent #7452455 B2

SYSTEM AND METHOD FOR PRODUCING METAL POWDER BY ELECTROWINNING

AI Summary

This invention relates to a system and method for producing a metal powder product using either conventional electrow- inning or alternative anode reaction chemistries in a flow- through electrowinning cell. The present invention enables the production of high quality metal powders, including cop- per powder, from metal-containing solutions using conven- tional electrowinning processes, direct electrowinning, or alternative anode reaction chemistries.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Nov. 18, 2008

Patent #7393438 B2

APPARATUS FOR PRODUCING METAL POWDER BY ELECTROWINNING

AI Summary

This invention relates to an apparatus for producing a metal powder product using either conventional electrowinning or alternative anode reaction chemistries in a flow-through elec- trowinning cell. A new design for a flow-through electrowin- ning cell that employs both flow-through anodes and flow- through cathodes is described. The present invention enables the production of high quality metal powders, including cop- per powder, from metal-containing solutions using conven- tional electrowinning processes, direct electrowinning, or alternative anode reaction chemistry.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

Jul. 1, 2008

Patent #7378011 B2

METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING THE FERROUS/FERRIC ANODE REACTION

AI Summary

The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous/ferric anode reaction. In general, the use of a flow-through anode—coupled with an effective electrolyte circulation system—enables the efficient and cost-effective operation of a copper electrowinning system employing the ferrous/ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A/m?), and reduces acid mist generation. Furthermore, the use of such a system permits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially sale- able product (i-e., LME Grade A copper cathode or equiva- lent), which is advantageous.

Inventors

Paul Richard Cook, Scot Philip Sandoval, Timothy George Robinson

May 27, 2008

Patent #7378010 B2

SYSTEM AND METHOD FOR PRODUCING COPPER POWDER BY ELECTROWINNING IN A FLOW-THROUGH ELECTROWINNING CELL

AI Summary

This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) in a flow-through electrowinning cell. The present invention enables the production of high quality metal powders, including copper powder, from metal-containing solutions using conventional electrowinning processes and/or direct electrow-inning.

Inventors

Antonioni C Stevens, John O Marsden, Scot P Sandoval, Stanley R Gilbert, Timothy G Robinson

May 27, 2008

Patent #7368049 B2

METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING THE FERROUS/FERRIC ANODE REACTION AND A FLOW-THROUGH ANODE

AI Summary

The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous/ferric anode reaction and a flow-through anode, such as, for example, a dimensionally stable carbon, carbon composite, metal-graphite, or stainless steel anode. In gen- eral, the use of a flow-through anode—coupled with an effective electrolyte circulation system—enables the effi- cient and cost-effective operation of a copper electrowinning system employing the ferrous/ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A/m2), and reduces acid mist generation. Furthermore, the use of such a system permits the use of low ferrous iron concentrations and optimized electrolyte flow rates as com- pared to prior art systems while producing high quality, commercially saleable product (i.e, LME Grade A copper cathode or equivalent), which is advantageous.

Inventors

Paul R. Cook, Scot P. Sandoval, Timothy G. Robinson, Wesley P. Hoffman

May 6, 2008

Patent #7341700 B2

METHOD FOR RECOVERY OF METALS FROM METAL-CONTAINING MATERIALS USING MEDIUM TEMPERATURE PRESSURE LEACHING

AI Summary

The present invention relates generally to a process for recovering copper and other metal values from metal-con- taining materials using controlled, super-fine grinding and medium temperature pressure leaching. Processes embody- ing aspects of the present invention may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, rhenium, zinc, uranium, and platinum group metals, from metal-bearing materials, and find particular utility in connection with the extraction of copper from copper sulfide ores and concentrates.

Inventors

David R. Baughman, Joanna M. Robertson, John O. Marsden, Philip Thompson, Robert E. Brewer, Roland Schmidt, Wayne W. Hazen

Mar. 11, 2008

Patent #12553104 B2

SYSTEMS AND METHODS FOR MONITORING METAL RECOVERY SYSTEMS

AI Summary

Various embodiments provide a leaching solution monitor- ing module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regu- lator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

Inventors

Chase Zenner, Christopher Wooten, John Warren Dean

Feb. 17, 2026

Patent #12530637 B2

SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON ORE PLACEMENT

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Jan. 20, 2026

Patent #12518223 B2

IRRIGATION IMPACTS ON A LEACH STOCKPILE

AI Summary

The system may include a secondary irrigation feature that determines a percent of overlap of each of a plurality of submodules in a second lift over each of a plurality of submodules in a first lift and adjusts at least one of leaching operations or a leaching model based on the total tonnage weighted average of metal in the second lift. The method may further comprise determining an acid gap based on a difference between total acid given and total acid consump-

Inventors

Amelia Briggs, Cristian Caro, Dana Geislinger, Kevin Cheng, Margaret Alden Tinsley, Raquel Crossman, Rosemary D. Blosser, Steven Chad Richardson, Travis Gaddie

Jan. 6, 2026

Patent #12492445 B2

SYSTEMS AND METHODS FOR SUBSURFACE METAL RECOVERY

AI Summary

The present disclosure provides a method comprising deter- mining an ore map for a heap to identify a location of a recoverable metal value in the heap, delivering a leaching solution from a leaching solution source to a leaching solution regulating system, regulating at least one of a pressure, a mass flow rate, or a volumetric flow rate of the leaching solution to achieve a first target operational con- dition, wherein the first target operational condition is selected to optimize a set of operational parameters to maximize recovery of the recoverable metal value, deliver- ing the leaching solution at the first target operational condition from the leaching solution regulating system to a

Inventors

Casey J. Clayton, Chase Zenner, Joanna M Robertson, John Warren Dean, Luciano Kiniti Issoe, Luke Gerdes, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Richard Melecio Sanchez, Tianfang Ni

Dec. 9, 2025

Patent #12475412 B2

SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON COLUMN TEST PREDICTIVE MODEL

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Nov. 18, 2025

Patent #12448696 B2

ACID MIST SUPPRESSION IN COPPER ELECTROWINNING

AI Summary

A method of acid mist suppression in copper electrowinning is described. In various embodiments, at least one liquid licorice root extract, powdered licorice root extract, or reconstituted licorice extract is added in an amount sufficient to the acidic electrolyte solution of the copper electrowin- ning process to suppress acid mist from the acidic electrolyte solution during the copper electrowinning process. In vari- ous embodiments, combinations of licorice extract and surfactant show synergies in acid mist suppression during copper electrowinning.

Inventors

Aron Tyab, Ephrem Lemlem Gebrehiwot, Scot Philip Sandoval, Stanberg Lee Tallman, William Duane Sanders

Oct. 21, 2025

Patent #12443899 B2

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Oct. 14, 2025

Patent #12437633 B2

METHODS AND SYSTEMS FOR OPERATING VEHICLES TO REDUCE BUNCHING

AI Summary

Systems and methods of operating vehicles to reduce bunch- ing of the vehicles when traveling on a roadway determine an intra arrival time for two consecutive vehicles traveling on the roadway; calculate a virtual spacing between the two consecutive vehicles based on the intra arrival time; deter- mine a following distance threshold; compare the virtual spacing between the two consecutive vehicles with the following distance threshold; determine that the two con- secutive vehicles are in a bunched condition when the virtual spacing between the two consecutive vehicles is less than the following distance threshold; and control at least one of the two consecutive vehicles until the vehicles are no longer in the bunched condition.

Inventors

Mary Amelia Walker, Nicholas Hickson, Robert Catron

Oct. 7, 2025

Patent #12427529 B2

SYSTEMS, DEVICES AND METHODS FOR IMPROVED EFFICIENCY OF BALL MILLS

AI Summary

A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.

Inventors

Dale Coray

Sep. 30, 2025

Patent #12400155 B2

IRRIGATION IMPACTS ON A LEACH STOCKPILE

AI Summary

The system may include a secondary irrigation feature that determines a percent of overlap of each of a plurality of submodules in a second lift over each of a plurality of submodules in a first lift and adjusts at least one of leaching operations or a leaching model based on the total tonnage weighted average of metal in the second lift. The method may further comprise determining an acid gap based on a

Inventors

Amelia Briggs, Cristian Caro, Dana Geislinger, Kevin Cheng, Margaret Alden Tinsley, Raquel Crossman, Rosemary D. Blosser, Steven Chad Richardson, Travis Gaddie

Aug. 26, 2025

Patent #12378634 B2

SYSTEMS AND METHODS FOR IMPROVED RAFFINATE INJECTION

AI Summary

The present disclosure provides a method comprising deter- mining an ore map for a heap to identify a location of a recoverable metal-bearing material in the heap, wherein the metal-bearing material comprises iron and at least one other metal value, delivering a leaching solution from a leaching solution source to a leaching solution regulating system, wherein the leaching solution comprises an effective amount of citric acid and hydrogen peroxide, regulating at least one of a pressure, a mass flow rate, or a volumetric flow rate of the leaching solution to achieve a target operational condi-

Inventors

Casey J. Clayton, Chase Zenner, Joanna M. Robertson, John Warren Dean, Luciano Kiniti Issoe, Luke Gerdes, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Richard Melecio Sanchez, Sarah Lyons, Tianfang Ni

Aug. 5, 2025

Patent #12373743 B2

SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON ORE PLACEMENT

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Jul. 29, 2025

Patent #12353196 B2

SYSTEM AND METHOD FOR DETERMINING CHANGES TO A HEAT PROFILE OF A STOCKPILE

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Jul. 8, 2025

Patent #12346845 B2

SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON COLUMN TEST PREDICTIVE MODEL

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Jul. 1, 2025

Patent #12288170 B2

IRRIGATION IMPACTS ON A LEACH STOCKPILE

AI Summary

The system may include a secondary irrigation feature that determines a percent of overlap of each of a plurality of submodules in a second lift over each of a plurality of submodules in a first lift and adjusts at least one of leaching operations or a leaching model based on the total tonnage weighted average of metal in the second lift. The method may further comprise determining an acid gap based on a difference between total acid given and total acid consump- tion; and further adjusting at least one of the leaching operations or the leaching model based on the acid gap. The method may further comprise determining a percentage of compacted material based on the material that is compacted and irrigated divided by the material that is irrigated; and

Inventors

Amelia Briggs, Cristian Caro, Dana Geislinger, Kevin Cheng, Margaret Alden Tinsley, Raquel Crossman, Rosemary D. Blosser, Steven Chad Richardson, Travis Gaddie

Apr. 29, 2025

Patent #12288169 B2

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Apr. 29, 2025

Patent #12260371 B2

SYSTEM AND METHOD FOR DETERMINING A DUMP LOCATION FOR A VEHICLE

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Mar. 25, 2025

Patent #12259256 B2

SYSTEM AND METHOD FOR DETERMINING LIFT HEIGHTS OF A STOCKPILE

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from the forecast data to the actual data to determine a contribu- tion to the deviations for each of the plurality of parameters.

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Mar. 25, 2025

Patent #12163788 B2

SYSTEM AND METHOD FOR ASSIGNING A HAUL TRUCK DUMP TO A LOCATION

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from the forecast data to the actual data to determine a contribu- tion to the deviations for each of the plurality of parameters.

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Dec. 10, 2024

Patent #12128419 B2

SYSTEMS, DEVICES AND METHODS FOR IMPROVED EFFICIENCY OF BALL MILLS

AI Summary

A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.

Inventors

Dale Coray

Mar. 31, 2023

Patent #12111303 B2

SYSTEM AND METHOD FOR DETERMINING A LOCATION OF ORE IN A STOCKPILE

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Oct. 8, 2024

Patent #12106247 B2

SYSTEM AND METHOD FOR DETERMINING ESTIMATED REMAINING MINERAL IN A STOCKPILE

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Oct. 1, 2024

Patent #12099942 B2

CHEMICAL IMPACTS ON A LEACH STOCKPILE

AI Summary

The system may include a secondary irrigation feature that determines a percent of overlap of each of a plurality of submodules in a first lift over each of a plurality of sub- modules in a second lift and adjusts at least one of leaching operations or a leaching model based on the total tonnage weighted average of metal in the second lift. The method may further comprise determining an acid gap based on a difference between total acid given and total acid consump- tion; and further adjusting at least one of the leaching operations or the leaching model based on the acid gap. The method may further comprise determining a percentage of compacted material based on the material that is compacted and irrigated divided by the material that is irrigated; and further adjusting at least one of the leaching operations or

Inventors

Amelia Briggs, Cristian Caro, Dana Geislinger, Kevin Cheng, Margaret Alden Tinsley, Raquel Crossman, Rosemary D. Blosser, Steven Chad Richardson, Travis Gaddie

Sep. 24, 2024

Patent #12098474 B2

ACID MIST SUPPRESSION IN COPPER ELECTROWINNING

AI Summary

A method of acid mist suppression in copper electrowinning is described. In various embodiments, at least one liquid licorice root extract, powdered licorice root extract, or reconstituted licorice extract is added in an amount sufficient to the acidic electrolyte solution of the copper electrowin- ning process to suppress acid mist from the acidic electrolyte solution during the copper electrowinning process. In vari- ous embodiments, combinations of licorice extract and surfactant show synergies in acid mist suppression during copper electrowinning.

Inventors

Aron Tyab, Ephrem Lemlem Gebrehiwot, Scot Philip Sandoval, Stanberg Lee Tallman, William Duane Sanders

Sep. 24, 2024

Patent #12067505 B2

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Aug. 20, 2024

Patent #12065151 B2

METHODS AND SYSTEMS FOR OPERATING A VEHICLE SUBJECT TO A TRAVEL RESTRICTION

AI Summary

Systems and methods of operating a vehicle subject to a travel restriction determine when the vehicle is traveling in an unloaded state; determine a speed of the vehicle when the vehicle is traveling in the unloaded state to produce an actual travel empty speed; compare the actual travel empty speed with an historical travel empty speed for the vehicle; and determine that the vehicle operation is subject to the travel restriction when the actual travel empty speed is less than a predetermined percentile of the historical travel empty speed. When the vehicle operation is not subject to the travel restriction, the systems and methods further evaluate vehicle operation based on an established performance parameter for the vehicle under a normal operating condition; and change a vehicle performance parameter during future vehicle operation based on the evaluation.

Inventors

Mary Amelia Walker, Nicholas Hickson, Robert Catron

Aug. 20, 2024

Patent #12018349 B2

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING MATERIAL

AI Summary

Methods for recovering a metal value from a metal-bearing material are provided. The method comprises agglomerating the metal-bearing material with an agglomeration solution comprising a raffinate, an oxidant, and citric acid or salts thereof to form an agglomerated metal-bearing material; leaching the agglomerated metal-bearing material with a leaching solution comprising the raffinate and the citric acid or salts thereof to produce a pregnant leaching solution and a leached material; re-oxidizing the leached material with a curing solution comprising the raffinate and the oxidant; and recovering the metal value from the pregnant leach solution to produce the raffinate.

Inventors

Sarah Lyons

Jun. 25, 2024

Patent #11948103 B2

SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Apr. 2, 2024

Patent #11932919 B2

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (““LGPLS”) is provided to the second circuit. The first circuit produces arich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

Inventors

Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Mar. 19, 2024

Patent #11898222 B2

SYSTEM AND METHOD FOR LIQUID-ORGANIC PARTICLE SEPARATION

AI Summary

The present invention provides a method and system for separating a liquid from organic particles. The mixer-settler extraction cell includes a flow distributor. The flow distribu- tor comprises a chevron-shaped series of welded plates, which separates the incoming flow stream of liquid and organic particles from one another.

Inventors

Steven Richardson

Feb. 13, 2024

Patent #11893519 B2

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DAТА

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Feb. 6, 2024

Patent #11847595 B2

METHODS AND SYSTEMS FOR DEPLOYING EQUIPMENT REQUIRED TO MEET DEFINED PRODUCTION TARGETS

AI Summary

Methods and systems determine at least one production constraint for a material loading system and a material processing system; estimate an effect of entropy on a cycle time of a material conveying system to produce a future cycle time estimate; estimate an effect of entropy on a material processing time to produce a future material pro- cessing time estimate; predict whether a delay will occur during the operation of the material loading, material con- veying, and material processing systems; estimate a duration of the predicted delay; determine a loading system capacity and a conveying system capacity required to meet the defined production target based on the production constraint and estimates of the future cycle time, the future material

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Nicholas Hickson, Robert Catron

Dec. 19, 2023

Patent #11836659 B2

METHODS AND SYSTEMS FOR DEPLOYING EQUIPMENT REQUIRED TO MEET DEFINED PRODUCTION TARGETS

AI Summary

Methods of deploying shovels and haul trucks to meet a defined production target may include: Determining at least one production constraint for a shovel and a material pro- cessing system; estimating an effect of entropy on a cycle time of the haul trucks to produce a future cycle time estimate; estimating an effect of entropy on a material processing time of the material processing system to pro- duce a future material processing time estimate; predicting whether a delay will occur during the operation of the shovel, the haul trucks, and the material processing system; estimating a duration of the predicted delay; determining a number of shovels and a number of haul trucks required to meet the defined production target based on the determined production constraint, the future cycle time estimate, the future material processing time estimate, and the duration of

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Nicholas Hickson, Robert Catron

Dec. 5, 2023

Patent #11823099 B1

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar-

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Nov. 21, 2023

Patent #11807952 B2

ACID MIST SUPPRESSION IN COPPER ELECTROWINNING

AI Summary

A method of acid mist suppression in copper electrowinning is described. In various embodiments, at least one liquid licorice root extract, powdered licorice root extract, or reconstituted licorice extract is added in an amount sufficient to the acidic electrolyte solution of the copper electrowin- ning process to suppress acid mist from the acidic electrolyte solution during the copper electrowinning process. In vari- ous embodiments, combinations of licorice extract and surfactant show synergies in acid mist suppression during copper electrowinning.

Inventors

Aron Tyab, Ephrem Lemlem Gebrehiwot, Scot Philip Sandoval, Stanberg Lee Tallman, William Duane Sanders

Nov. 7, 2023

Patent #11772101 B2

SYSTEMS, DEVICES AND METHODS FOR IMPROVED EFFICIENCY OF BALL MILLS

AI Summary

A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.

Inventors

Dale Coray

Oct. 3, 2023

Patent #11681959 B1

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar-

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Jun. 20, 2023

Patent #11656364 B2

REAL-TIME CORRELATION OF SENSED POSITION DATA WITH TERRESTRIAL FEATURES

AI Summary

Methods and systems of correlating sensed position data with terrestrial features receive sensed position data from a position sensing system operatively associated with a move- able object; select a reduced set of snap point candidates from terrestrial data based on a sensed position point; choose a best snap point candidate from among the reduced set of snap point candidates based on a plurality of predictive variables and corresponding weighting factors for each snap point candidate in the reduced set of snap point candidates; and snap the sensed position point to the best snap point candidate to produce a snapped position point. The select- ing, choosing, and snapping processes are performed in substantially real time so that the systems and methods correlate the sensed position data from the moveable object with terrestrial features in substantially real time.

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Robert Catron

May 23, 2023

Patent #11639539 B2

SYSTEMS AND METHODS FOR MONITORING METAL RECOVERY SYSTEMS

AI Summary

Various embodiments provide a leaching solution monitor- ing module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regu- lator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

Inventors

Chase Zenner, Christopher Wooten, John Warren Dean

May 2, 2023

Patent #11584974 B2

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (““HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (““LGPLS”) is provided to the second circuit. The first circuit produces arich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

Inventors

Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Feb. 21, 2023

Patent #11521138 Bl

SYSTEM AND METHOD FOR ADJUSTING LEACHING OPERATIONS BASED ON LEACH ANALYTIC DATA

AI Summary

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raflinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the compar- ing; and changing each of the plurality of parameters from the forecast data to the actual data to determine a contribu- tion to the deviations for each of the plurality of parameters.

Inventors

Akaash Sanyal, Cory A. Demieville, Dana Geislinger, Luciano Kiniti Issoe, Luke Gerdes, Margaret Alden Tinsley, Muneeb Alam, Oleksandr Klesov, Raquel Crossman, Robyn Freeman, Steven Chad Richardson, Tianfang Ni, Travis Gaddie

Dec. 6, 2022

Patent #11359257 B2

SYSTEM AND METHOD FOR LIQUID-ORGANIC PARTICLE SEPARATION

AI Summary

The present invention provides a method and system for separating a liquid from organic particles. The mixer-settler extraction cell includes a flow distributor. The flow distribu- tor comprises a chevron-shaped series of welded plates, which separates the incoming flow stream of liquid and organic particles from one another.

Inventors

Steven Richardson

Jun. 14, 2022

Patent #11332808 B2

SYSTEMS AND METHODS FOR MONITORING METAL RECOVERY SYSTEMS

AI Summary

Various embodiments provide a leaching solution monitor- ing module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regu- lator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

Inventors

Chase Zenner, Christopher Wooten, John Warren Dean

May 17, 2022

Patent #11244262 B2

METHODS AND SYSTEMS FOR DEPLOYING EQUIPMENT REQUIRED TO MEET DEFINED PRODUCTION TARGETS

AI Summary

Methods and systems determine at least one production constraint for a material loading system and a material processing system; estimate an effect of entropy on a cycle time of a material conveying system to produce a future cycle time estimate; estimate an effect of entropy on a material processing time to produce a future material pro- cessing time estimate; predict whether a delay will occur during the operation of the material loading, material con- veying, and material processing systems; estimate a duration of the predicted delay; determine a loading system capacity and a conveying system capacity required to meet the defined production target based on the production constraint and estimates of the future cycle time, the future material processing time, and the duration of the predicted delay; and deploy one or more material loading and conveying systems to meet the determined loading and conveying system capacities.

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Nicholas Hickson, Robert Catron

Feb. 8, 2022

Patent #11237567 B2

METHODS AND SYSTEMS FOR DETERMINING AND CONTROLLING VEHICLE SPEED

AI Summary

Methods and systems of determining and controlling a vehicle travel speed on a roadway determine a grade of the roadway at defined intervals along the roadway; calculate a maximum straight line vehicle speed for each defined inter- val based on the determined grade and vehicle performance data; determine a radius of curvature and a superelevation of the roadway for each defined interval; determine a lateral friction coefficient for a vehicle/roadway system; calculate a maximum cornering vehicle speed for each defined interval based on the curvature, superelevation, and lateral friction coefficient; calculate the travel speed for each defined inter- val based on the maximum straight line vehicle speed and the maximum cornering vehicle speed; and control the speed of the vehicle so that it does not exceed the calculated travel speed for each defined interval.

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Nicholas Hickson, Robert Catron

Feb. 1, 2022

Patent #11053566 B2

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (““HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (““LGPLS”) is provided to the second circuit. The first circuit produces arich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

Inventors

Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Jul. 6, 2021

Patent #10975455 B2

SYSTEMS AND METHODS FOR MONITORING METAL RECOVERY SYSTEMS

AI Summary

Various embodiments provide a leaching solution monitor- ing module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regu- lator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

Inventors

Chase Zenner, Christopher Wooten, John Warren Dean

Apr. 13, 2021

Patent #10858721 Bl

SYSTEM AND METHOD FOR LIQUID-ORGANIC PARTICLE SEPARATION

AI Summary

The present invention provides a method and system for separating a liquid from organic particles. The mixer-settler extraction cell includes a flow distributor. The flow distribu- tor comprises a chevron-shaped series of welded plates, which separates the incoming flow stream of liquid and organic particles from one another.

Inventors

Steven Richardson

Dec. 8, 2020

Patent #10793958 B2

SYSTEM AND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

A process and system is provided for recovery of one or more metal values using solution extraction techniques and for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extrac- tion circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich elec- trolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is for- warded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first

Inventors

Anand Raman, Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Oct. 6, 2020

Patent #10769237 B2

SYSTEMS AND METHODS OF CORRELATING SATELLITE POSITION DATA WITH TERRESTRIAL FEATURES

AI Summary

A method of correlating satellite position data with terres- trial features may include the steps of: Defining a two- dimensional grid comprising a plurality of grid points at defined locations; rounding the satellite position data to the nearest grid point of the defined two-dimensional grid to create an amplitude data table, each rounded satellite posi- tion data point in the amplitude data table defining a refer- ence grid point value; matching the terrestrial survey data to at least four adjacent grid points of the defined two-dimen- sional grid to create a terrestrial coordinate table; merging the amplitude data table and the terrestrial coordinate table

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Robert Catron

Sep. 8, 2020

Patent #10767242 B2

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING ORE USING A BIO-AUGMENTATION PROCESS

AI Summary

A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglomerated ore. In an intermediate state, between agglom- eration and heap formation, bacteria can be added to the metal-bearing ore material to produce an augmented ore. The augmented ore can then be formed into a heap. Bacteria from the heap may be fortified to assist in bacterial growth.

Inventors

Christine Rae Green, Gabriel Elias Bowman, Joanna M Robertson

Sep. 8, 2020

Patent #10712448 B2

REAL-TIME CORRELATION OF SENSED POSITION DATA WITH TERRESTRIAL FEATURES

AI Summary

Methods and systems of correlating sensed position data with terrestrial features receive sensed position data from a position sensing system operatively associated with a move- able object; select a reduced set of snap point candidates from terrestrial data based on a sensed position point; choose a best snap point candidate from among the reduced set of snap point candidates based on a plurality of predictive variables and corresponding weighting factors for each snap point candidate in the reduced set of snap point candidates; and snap the sensed position point to the best snap point candidate to produce a snapped position point. The select- ing, choosing, and snapping processes are performed in substantially real time so that the systems and methods correlate the sensed position data from the moveable object with terrestrial features in substantially real time.

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Robert Catron

Jul. 14, 2020

Patent #10662502 B2

SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING

AI Summary

Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.

Inventors

Dennis D Gertenbach, Joanna M Robertson, Thomas R Bolles

May 26, 2020

Patent #10586408 B2

VEHICLE SPEED-BASED ANALYTICS

AI Summary

Asystem for optimizing a travel speed of an off-road vehicle utilizes time-over-target values as a threshold indicator for diagnostics and subsequent remedial actions. A road used for haulage is divided into a plurality of predetermined road segments. A target transit time is defined for each of the predetermined segments to provide a target speed curve. An actual transit time values is measured for the off-road vehicle in transiting the road. A comparison outcome is generated by comparing the target transit time value with the actual transit time value. The comparison outcome is useful in adjusting the travel speed for the vehicle to minimize the time over target value.

Inventors

Brian Vaughan, James Milne, Mary Amelia Walker, Nicholas Hickson, Robert Catron

Mar. 10, 2020

Patent #10501821 B2

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (““LGPLS”) is provided to the second circuit. The first circuit produces arich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

Inventors

Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Dec. 10, 2019

Patent #10474731 B2

SYSTEMS AND METHODS OF CORRELATING SATELLITE POSITION DATA WITH TERRESTRIAL FEATURES

AI Summary

A method of correlating satellite position data with terres- trial features may include: Using a geometric snapping algorithm to correlate the satellite position data and terres- trial survey data and snap the satellite position data to the terrestrial features; determining whether the satellite posi- tion data can be snapped to unique terrestrial features; and using a hybrid space-time snapping algorithm to correlate the satellite position data and terrestrial survey data and snap the satellite position data to unique terrestrial features when the satellite position data cannot be snapped to unique terrestrial features.

Inventors

Mary Amelia Walker

Nov. 12, 2019

Patent #10445443 B2

GROUND SUPPORT DESIGN TOOL

AI Summary

A method of designing an underground excavation may involve the steps of: Developing a plurality of input param- eters for the underground excavation; performing a first design iteration to determine an initial ground support system design; evaluating a kinematic stability of the initial ground support system design; determining whether the kinematic stability meets a predetermined factor of safety; and reiterating the initial ground support system design until the kinematic stability meets the predetermined factor of safety.

Inventors

Richard Hudson

Oct. 15, 2019

Patent #10378160 B2

SYSTEMS AND METHODS OF DETERMINING ROAD QUALITY

AI Summary

A system for determining road quality includes a vehicle equipped with sensors to detect a position of the vehicle on the road and a suspension strut parameter indicative of road quality. The suspension strut parameter may be suspension strut pressure or suspension strut cylinder stroke. A thresh- old range is established outside of which an absolute value of the suspension strut parameter is associated with poor road quality. A computerized system generates a heat map to display relative quality of road segments.

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Robert Catron

Aug. 13, 2019

Patent #10370738 B2

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING ORE

AI Summary

A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglomerated ore. In an intermediate state, between agglom- eration and heap formation, bacteria can be added to the metal-bearing ore material to produce an augmented ore. The augmented ore can then be formed into a heap. Bacteria from the heap may be fortified to assist in bacterial growth.

Inventors

Christine Rae Green, Gabriel Elias Bowman, Joanna M Robertson

Aug. 6, 2019

Patent #10246789 B2

SYSTEMS AND METHODS FOR COPPER RECOVERY VIA ROASTING AND LEACHING

AI Summary

Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.

Inventors

David R Baughman, Jay C Smith, Joanna M Robertson, Lawrence D May, Thomas R Bolles, Wayne W Hazen

Apr. 2, 2019

Patent #10210677 B2

SYSTEMS AND METHODS OF DETERMINING CAUSES OF PERFORMANCE DEFICIENCIES OF VEHICLES

AI Summary

A method of determining a cause of a performance defi- ciency of a vehicle may include: Determining whether the vehicle is operating in a defined load condition; comparing an actual vehicle performance parameter with a predeter- mined baseline performance parameter for the defined load condition; comparing a plurality of key indicator values of the vehicle with a predetermined specification for each of the plurality of key indicator values; concluding that the performance deficiency is the result of a mechanical condi- tion of the vehicle when at least one of the key indicator values is outside of the predetermined specification for a corresponding key indicator value and when the actual vehicle performance parameter is outside of the predeter- mined baseline performance parameter; and concluding that the performance deficiency is the result of an operational condition when none of the key indicator values is outside of the predetermined specification for the corresponding key indicator value and when the actual vehicle performance parameter is outside of the predetermined baseline perfor- mance parameter.

Inventors

D. Bradley Brown, Mary Amelia Walker, Robert Catron

Feb. 19, 2019

Patent #10190190 B2

SYSTEMS AND METHODS FOR MONITORING METAL RECOVERY SYSTEMS

AI Summary

Various embodiments provide a leaching solution monitor- ing module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regu- lator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

Inventors

Chase Zenner, Christopher Wooten, John Warren Dean

Jan. 29, 2019

Patent #10169929 B2

SYSTEMS OF USING VEHICLE SYSTEM DATA TO IMPROVE THE OPERATION OF OFF-ROAD VEHICLES

AI Summary

A system for operating a fleet of off-road vehicles may include a network. A plurality of sensors operatively asso- ciated with the fleet of off-road vehicles and connected to the network sense information related to the operation of a plurality of off-road vehicle systems. A processing system operatively connected to the network collects sensor data from the off-road vehicles; combines sensor data from the vehicle systems in accordance with a user-defined event; determines whether the collected and combined sensor data are inside or outside defined limits of the user-defined event; produces an alarm signal for a user when the collected and combined sensor data are outside the defined limits of the user-defined event; and recommends modification of the operation of vehicles for which an alarm signal has been produced. A display system operatively associated with the processing system displays at least information relating to the recommended modification.

Inventors

Connie DeeAnne Puckett, D. Bradley Brown, Don Robert Manifee, Mary Amelia Walker

Jan. 1, 2019

Patent #10103525 B2

CABLE HANDLING APPARATUS AND METHOD

AI Summary

A cable handling apparatus may include a frame and a first cable jaw mounted to the frame. A second cable jaw is pivotally mounted to the first cable jaw so that the first and second cable jaws may be pivoted with respect to one another between an opened position and a closed position. A lock assembly operatively associated with the first and second cable jaws locks said first and second cable jaws in the closed position.

Inventors

Frank E. Baptiste

Oct. 16, 2018

Patent #10036096 B2

SYSTEM AND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL - BEARING MATERIALS

AI Summary

The present disclosure relates to a process and system for recovery of one or more metal values using solution extrac- tion techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extrac- tion circuits have independent organic phases and each circuit can operate independently of the other circuit.

Inventors

Anand Raman, Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Jul. 31, 2018

Patent #10036080 B2

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

AI Summary

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (““LGPLS”) is provided to the second circuit. The first circuit produces arich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

Inventors

Barbara J Savage, David G Meadows, Jason M Morgan, Wayne W Hazen

Jul. 31, 2018

Patent #10026236 B2

METHODS AND SYSTEMS OF USING VEHICLE SYSTEM DATA TO IMPROVE THE OPERATION OF OFF-ROAD VEHICLES

AI Summary

A method of operating a fleet of off-road vehicles may include: Collecting sensor data from the off-road vehicles, the sensor data being related to the operation of a plurality of vehicle systems; combining sensor data from the vehicle systems in accordance with a user-defined event; determin- ing whether the collected and combined sensor data are within or without defined limits of the user-defined event; producing an alarm signal for a user when the collected and combined sensor data are without the defined limits of the user-defined event; and modifying the operation of vehicles for which an alarm signal has been produced.

Inventors

Connie DeeAnne Puckett, D. Bradley Brown, Don Robert Manifee, Mary Amelia Walker

Jul. 17, 2018

Patent #10013820 B2

VEHICLE SPEED-BASED ANALYTICS

AI Summary

Asystem for optimizing a travel speed of an off-road vehicle utilizes time-over-target values as a threshold indicator for diagnostics and subsequent remedial actions. A road used for haulage is divided into a plurality of predetermined road segments. A target transit time is defined for each of the predetermined segments to provide a target speed curve. An actual transit time values is measured for the off-road vehicle in transiting the road. A comparison outcome is generated by comparing the target transit time value with the actual transit time value. The comparison outcome is useful in diagnosing causes of operation trouble and in scheduling remedial action to address the operational trouble.

Inventors

Brian Vaughan, James Milne, Mary Amelia Walker, Nicholas Hickson, Robert Catron

Jul. 3, 2018

Patent #10006133 B2

SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING

AI Summary

Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce a loaded aqueous stream.

Inventors

Dennis D Gertenbach, Joanna M Robertson, Thomas R Bolles

Jun. 26, 2018

Patent #10002109 B2

SYSTEMS AND METHODS OF CORRELATING SATELLITE POSITION DATA WITH TERRESTRIAL FEATURES

AI Summary

A method of correlating satellite position data with terres- trial features may include: Using a geometric snapping algorithm to correlate the satellite position data and terres- trial survey data and snap the satellite position data to the terrestrial features; determining whether the satellite posi- tion data can be snapped to unique terrestrial features; and using a hybrid space-time snapping algorithm to correlate the satellite position data and terrestrial survey data and snap the satellite position data to unique terrestrial features when the satellite position data cannot be snapped to unique terrestrial features.

Inventors

Brian Vaughan, Hung Jung Lu, Mary Amelia Walker, Robert Catron

Jun. 19, 2018