Patents by Inventor Gary A. Kordosky
Gary A. Kordosky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11697600Abstract: The invention provides for the orchestrated treatment of disparate fractions of a shale deposit to recover vanadium values, with distinct steps of beneficiation that together provide a combined vanadium-enriched concentrate amenable to subsequent combined steps of hydrometallurgical vanadium extraction.Type: GrantFiled: January 19, 2021Date of Patent: July 11, 2023Assignee: First Vanadium Corp.Inventors: David Dreisinger, Jodi Esplin, Mike Johnson, Gary Kordosky, Erin Legault, Michael Mracek, Frederick Sveinson, Sandra Sveinson, Radomir Vukcevic
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Publication number: 20210221701Abstract: The invention provides for the orchestrated treatment of disparate fractions of a shale deposit to recover vanadium values, with distinct steps of beneficiation that together provide a combined vanadium-enriched concentrate amenable to subsequent combined steps of hydrometallurgical vanadium extraction.Type: ApplicationFiled: January 19, 2021Publication date: July 22, 2021Inventors: David DREISINGER, Jodi ESPLIN, Mike JOHNSON, Gary KORDOSKY, Erin LEGAULT, Michael MRACEK, Frederick SVEINSON, Sandra SVEINSON, Radomir VUKCEVIC
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Patent number: 8062614Abstract: Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide a first clarified aqueous leach solution and a second aqueous leach pulp, wherein the second aqueous leach pulp comprises the leached solids at a % solids level greater than the first pulp; (c) subjecting the first clarified aqueous leach solution to a first solvent extraction prior to any significant dilution, whereby a first aqueous raffinate is obtained; (d) subjecting the second aqueous leach pulp to a second solid-liquid separation with dilution via an aqueous stream to obtain a second clarified aqueous leach solution; and (e) subjecting the second clarified aqueous leach solution to a second solvent extraction whereby a second is aqueous raffinate is obtained.Type: GrantFiled: August 27, 2010Date of Patent: November 22, 2011Assignee: Cognis IP Management GmbHInventors: Gary A. Kordosky, Andrew Nisbett
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Publication number: 20100319490Abstract: Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide a first clarified aqueous leach solution and a second aqueous leach pulp, wherein the second aqueous leach pulp comprises the leached solids at a % solids level greater than the first pulp; (c) subjecting the first clarified aqueous leach solution to a first solvent extraction prior to any significant dilution, whereby a first aqueous raffinate is obtained; (d) subjecting the second aqueous leach pulp to a second solid-liquid separation with dilution via an aqueous stream to obtain a second clarified aqueous leach solution; and (e) subjecting the second clarified aqueous leach solution to a second solvent extraction whereby a second is aqueous raffinate is obtained.Type: ApplicationFiled: August 27, 2010Publication date: December 23, 2010Applicant: COGNIS IP MANAGEMENT GMBHInventors: Gary A. Kordosky, Andrew Nisbett
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Patent number: 7799294Abstract: Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide a first clarified aqueous leach solution and a second aqueous leach pulp, wherein the second aqueous leach pulp comprises the leached solids at a % solids level greater than the first pulp; (c) subjecting the first clarified aqueous leach solution to a first solvent extraction prior to any significant dilution, whereby a first aqueous raffinate is obtained; (d) subjecting the second aqueous leach pulp to a second solid-liquid separation with dilution via an aqueous stream to obtain a second clarified aqueous leach solution; and (e) subjecting the second clarified aqueous leach solution to a second solvent extraction whereby a second aqueous raffinate is obtained.Type: GrantFiled: July 21, 2004Date of Patent: September 21, 2010Assignee: Cognis IP Management GmbHInventors: Gary A. Kordosky, Andrew Nisbett
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Patent number: 7635457Abstract: The disclosed invention provides a process for enhanced recovery of one or more metal values from heap and/or dump leaching of ores containing the metal values, the process comprising: (a) providing a high grade leach solution obtained by heap or dump leaching of fresh high grade ore containing a first metal value; (b) subjecting the high grade leach solution to a first solvent extraction of the first metal value and applying the resulting first aqueous raffinate to leach fresh high grade ore; (c) providing a low grade leach solution obtained by heap or dump leaching of partially leached ore or fresh low grade ore of the first metal value; and (d) subjecting the low grade leach solution to a second solvent extraction of the first metal value, separate from the first solvent extraction of the first metal value, and applying the resulting separate, second aqueous to leach partially leached ore or fresh low grade ore, wherein the first and second aqueous raffinates are not intermixed prior to being applied tType: GrantFiled: September 20, 2005Date of Patent: December 22, 2009Assignee: COGNIS IP Management GmbHInventors: Gary A. Kordosky, Andrew Nisbett, Hans C. Hein
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Patent number: 7214256Abstract: A circuit configuration for a metal solvent extraction plant comprising: A) an extraction section for extracting metal ions from an aqueous leach solution containing the metal ions with an organic solvent solution containing at least one metal extraction reagent, wherein the extraction section consists of three countercurrent extraction stages; and B) a stripping section consisting of one stripping stage for stripping the metal ions from the metal extraction reagent.Type: GrantFiled: July 31, 2003Date of Patent: May 8, 2007Assignee: Cognis CorporationInventors: Gary A. Kordosky, Hans Hein Steger
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Publication number: 20060117908Abstract: The disclosed invention concerns a process comprising: (a) providing a pregnant leach solution comprising copper values; (b) contacting the pregnant leach solution with an organic phase comprising a copper extractant at an extraction temperature, Text, to form a loaded organic phase comprising the metal values; (c) contacting the loaded organic phase with an aqueous stripping solution at a stripping temperature, Tstrip, to form a copper-enriched stripping solution; wherein the difference in temperature (?T) between the stripping temperature and the extraction temperature according to equation (I): ?T=Tstrip?Text is less than or equal to about 10° C. In other increasingly more preferred embodiments of the invention, the difference in temperature (?T) is less than or equal to about 5° C., less than or equal to about 2.5° C., less than or equal to about 0° C., less than or equal to about ?5° C., and less than or equal to about ?10° C.Type: ApplicationFiled: November 2, 2005Publication date: June 8, 2006Inventors: Michael Virnig, R. Sudderth, Philip Crane, Andrew Nisbett, Burrel Boley, Dustin Gordon, Gary Kordosky
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Publication number: 20060088458Abstract: The disclosed invention provides a process for enhanced recovery of one or more metal values from heap and/or dump leaching of ores containing the metal values, the process comprising: (a) providing a high grade leach solution obtained by heap or dump leaching of fresh high grade ore containing a first metal value; (b) subjecting the high grade leach solution to a first solvent extraction of the first metal value and applying the resulting first aqueous raffinate to leach fresh high grade ore; (c) providing a low grade leach solution obtained by heap or dump leaching of partially leached ore or fresh low grade ore of the first metal value; and (d) subjecting the low grade leach solution to a second solvent extraction of the first metal value, separate from the first solvent extraction of the first metal value, and applying the resulting separate, second aqueous to leach partially leached ore or fresh low grade ore, wherein the first and second aqueous raffinates are not intermixed prior to being applied to thType: ApplicationFiled: September 20, 2005Publication date: April 27, 2006Inventors: Gary Kordosky, Andrew Nisbett, Hans Hein
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Patent number: 7025899Abstract: The preparation of concentrated solutions of oxime metal extractants, such as aldoximes and ketoximes, or mixtures of aldoxime and ketoxime, and the use thereof in formulating or preparing extraction reagent compositions for use in an extractant organic phase in a process of extracting metals from aqueous solutions containing metal values; and in particular, to concentrates which are solutions of individual ketoxime or aldoxime or mixtures of water-insoluble hydroxy aldoximes and ketoximes, in varying ratios by weight of 1:100 aldoxime to ketoxime, or conversely, 100:1 ketoxime to aldoxime, in water-immiscible hydrocarbon solvents or equilibrium modifiers. The invention also provides for maintaining stability of concentrates determined by accelerating rate calorimetry to define the ranges of oxime concentration and volume whereby the concentrate will be a stable, flowable, pourable and pumpable concentrate which can be safely stored long term.Type: GrantFiled: December 21, 2001Date of Patent: April 11, 2006Assignee: Cognis CorporationInventors: R. Brantley Sudderth, George A. Wolfe, Ralph L. Jensen, Gary A. Kordosky, Michael J. Virnig, Mary Collins, Stephen M. Olafson, Terry L. Crandell, Hans C. Hein
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Publication number: 20050031512Abstract: Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide a first clarified aqueous leach solution and a second aqueous leach pulp, wherein the second aqueous leach pulp comprises the leached solids at a % solids level greater than the first pulp; (c) subjecting the first clarified aqueous leach solution to a first solvent extraction prior to any significant dilution, whereby a first aqueous raffinate is obtained; (d) subjecting the second aqueous leach pulp to a second solid-liquid separation with dilution via an aqueous stream to obtain a second clarified aqueous leach solution; and (e) subjecting the second clarified aqueous leach solution to a second solvent extraction whereby a second aqueous raffinate is obtained.Type: ApplicationFiled: July 21, 2004Publication date: February 10, 2005Inventors: Gary Kordosky, Andrew Nisbett
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Publication number: 20040258590Abstract: Copper is extracted from aqueous copper leach solutions wherein the leach solutions have a temperature of at least 30° C.Type: ApplicationFiled: April 22, 2004Publication date: December 23, 2004Inventors: Gary A. Kordosky, R. Brantley Sudderth, Michael J. Virnig
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Publication number: 20040103756Abstract: A circuit configuration for a metal solvent extraction plant comprising:Type: ApplicationFiled: July 31, 2003Publication date: June 3, 2004Inventors: Gary A. Kordosky, Hans Hein Steger
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Publication number: 20020157572Abstract: The preparation of concentrated solutions of oxime metal extractants, such as aldoximes and ketoximes, or mixtures of aldoxime and ketoxime, and the use thereof in formulating or preparing extraction reagent compositions for use in an extractant organic phase in a process of extracting metals from aqueous solutions containing metal values; and in particular, to concentrates which are solutions of individual ketoxime or aldoxime or mixtures of water-insoluble hydroxy aldoximes and ketoximes, in varying ratios by weight of 1:100 aldoxime to ketoxime, or conversely, 100:1 ketoxime to aldoxime, in water-immiscible hydrocarbon solvents or equilibrium modifiers. The invention also provides for maintaining stability of concentrates determined by accelerating rate calorimetry to define the ranges of oxime concentration and volume whereby the concentrate will be a stable, flowable, pourable and pumpable concentrate which can be safely stored long term.Type: ApplicationFiled: December 21, 2001Publication date: October 31, 2002Inventors: R. Brantley Sudderth, George A. Wolfe, Ralph L. Jensen, Gary A. Kordosky, Michael J. Virnig, Mary Collins, Stephen M. Olafson, Terry L. Crandell, Hans C. Hein
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Patent number: 6242625Abstract: In an acid leach copper extraction circuit for leaching copper values from copper ores using a water-immiscible organic solvent solution containing a copper extractant and an acid strip solution, the improvement wherein the stripped organic solvent solution is contacted with copper-free fresh aqueous acid to remove additional copper values therefrom, and then the resulting super stripped organic and the copper-containing aqueous acid are sent to the copper extraction circuit.Type: GrantFiled: September 30, 1999Date of Patent: June 5, 2001Assignee: Henkel CorporationInventor: Gary A. Kordosky
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Patent number: 6210647Abstract: An improved process for the extraction of a metal from an aqueous ammoniacal solution comprising: (i) contacting the aqueous ammoniacal solution with an extraction reagent comprised of a water insoluble extractant for the metal, to provide an organic phase, now containing metal values, and an aqueous phase from which metal values have been extracted; (ii) contacting the organic phase with an aqueous stripping solution to provide an aqueous strip phase, now containing metal values, and an organic phase from which metal values have been stripped; and (iii) recovering the metal values from the aqueous stripping solution; the improvement wherein (a) the extraction reagent contains an ammonia antagonist having only hydrogen bond acceptor properties; (b) the stripping solution is an aqueous highly acidic solution; and (c) the organic phase is washed with a weakly acidic aqueous solution prior to stripping with the highly acidic aqueous stripping solution.Type: GrantFiled: November 21, 1997Date of Patent: April 3, 2001Assignee: Henkel CorporationInventors: Michael J. Virnig, Gary A. Kordosky, George A. Wolfe, J. Murdoch MacKenzie
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Patent number: 6107523Abstract: Novel modified and improved beta-diketones and their use in the extraction of copper from aqueous ammoniacal solutions containing copper values, resulting from commercial processes, including, but not limited to, leaching of copper containing ores, such as sulfidic ores, or concentrates resulting from flotation of such sulfidic ores. The novel diketones are those highly sterically hindered, which may be represented by the formula I or II: ##STR1## The preferred beta-diketones of Formula [II] are selected from the group consisting of neo-alkyl beta-diketones, such as, 1-phenyl-3-neoalkyl-1,3 propanedione in which the neoalkyl group is selected from neohexyl, neoheptyl, neooctyl, neononyl, or neodecyl.Type: GrantFiled: December 17, 1997Date of Patent: August 22, 2000Assignee: Henkel CorporationInventors: Michael J. Virnig, Gary A. Kordosky, Sang I. Kang, Kevin V. Martin, Phillip L. Mattison
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Patent number: 6060029Abstract: Improvement in the process of extracting metals, particularly copper, from aqueous ammoniacal solutions with beta-diketone extractants dissolved in a water immiscible hydrocarbon diluent, such as a kerosene, in which the improvement comprises application of a voltage potential across the interface of the aqueous and organic layers of an extraction circuit with an electrostatic coalescer, and maintaining the voltage potential until the layers have been separated, to control entrainment of the aqueous layer into the organic layer, thereby significantly reducing metal production cost and providing improved metal quality by minimizing ammonia entrapment and carry over to the aqueous stripping solution from which the metal is recovered, typically by electrowinning of the aqueous acid strip solution.Type: GrantFiled: April 21, 1999Date of Patent: May 9, 2000Assignee: Henkel CorporationInventors: Michael J. Virnig, G. Timothy Fisher, Gary A. Kordosky
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Patent number: 5654458Abstract: Improvement on the recovery of palladium from aqueous acidic solutions employing ketoximes, including novel ether oximes and palladium complexes, comprising contacting the aqueous acidic solution containing the palladium with an organic solvent containing the oxime to form two immiscible phases, separating the organic and aqueous acidic phases and stripping the palladium values from the organic phase using an aqueous ammonia solution. The organic phase may contain phase transfer agents and modifiers.Type: GrantFiled: May 14, 1993Date of Patent: August 5, 1997Assignee: Henkel CorporationInventors: Michael D. Fabiano, Gary A. Kordosky, Phillip L. Mattison, Michael J. Virnig, Bert Gruber, Steven M. Hoagland
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Patent number: 5514823Abstract: Preparation of N,N'-bis(alkylsalicylidene)ethylene or phenylene diamines, and transition metal complexes thereof, particularly copper, and their use as an additive to diesel fuel to reduce soot formation in diesel exhaust.Type: GrantFiled: February 7, 1994Date of Patent: May 7, 1996Assignee: Henkel CorporationInventors: Gary A. Kordosky, R. Brantley Sudderth