Patents by Inventor Thomas R. Bolles
Thomas R. Bolles 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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Publication number: 20220119917Abstract: The present disclosure provides a method of recovering copper, molybdenum, and a precious metal value from a metal-bearing material, the method comprising bulk flotation of the metal-bearing material to form a flotation product, wherein the metal-bearing material comprises a copper compound, a molybdenum compound, at least one precious metal value, and a silicate, pressure oxidizing the flotation product to form a pressure oxidized discharge, separating the pressure oxidized discharge to form a separated liquid and separated solid, extracting molybdenum, via a molybdenum solution extraction, from the separated liquid to form a molybdenum-containing stream and a copper-containing stream, extracting copper, via a copper solution extraction, from the copper-containing stream, and extracting the precious metal value, via a cyanide leaching process, from the separated solid.Type: ApplicationFiled: October 7, 2021Publication date: April 21, 2022Applicant: FREEPORT MINERALS CORPORATIONInventors: Brenda Lizzet Mota, Thomas R. Bolles, Christine Rae Green, Santosh Srivatsa Gunturi, Manuel G. Villalba, JR.
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Patent number: 11187113Abstract: An electric power generating system includes an autoclave coupled to a natural gas source, an oxygen source, and having a pressure reducing outlet valve. A high-pressure pump provides a solution of ammonium hydroxide and ammonium carbonate solution under pressure to the autoclave. An exothermic reaction generates high-pressure steam for electrical power generation. A crystallizer receives ammonium carbonate from the reaction for the formation of crystallized ammonium carbonate fertilizer.Type: GrantFiled: November 3, 2020Date of Patent: November 30, 2021Inventor: Thomas R Bolles
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Publication number: 20210131311Abstract: An electric power generating system includes an autoclave coupled to a natural gas source, an oxygen source, and having a pressure reducing outlet valve. A high-pressure pump provides a solution of ammonium hydroxide and ammonium carbonate solution under pressure to the autoclave. An exothermic reaction generates high-pressure steam for electrical power generation. A crystallizer receives ammonium carbonate from the reaction for the formation of crystallized ammonium carbonate fertilizer.Type: ApplicationFiled: November 3, 2020Publication date: May 6, 2021Inventor: Thomas R. Bolles
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Patent number: 10662502Abstract: 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.Type: GrantFiled: June 18, 2018Date of Patent: May 26, 2020Assignee: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
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Publication number: 20190177864Abstract: 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.Type: ApplicationFiled: February 12, 2019Publication date: June 13, 2019Applicant: FREEPORT MINERALS CORPORATIONInventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
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Patent number: 10246789Abstract: 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.Type: GrantFiled: April 15, 2016Date of Patent: April 2, 2019Assignee: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Wayne W Hazen, Lawrence D May, Jay C Smith, David R Baughman
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Publication number: 20180298505Abstract: 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.Type: ApplicationFiled: June 18, 2018Publication date: October 18, 2018Applicant: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
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Patent number: 10006133Abstract: 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.Type: GrantFiled: November 13, 2015Date of Patent: June 26, 2018Assignee: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
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Publication number: 20160230296Abstract: 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.Type: ApplicationFiled: April 15, 2016Publication date: August 11, 2016Applicant: FREEPORT MINERALS CORPORATIONInventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
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Patent number: 9340849Abstract: 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.Type: GrantFiled: December 17, 2012Date of Patent: May 17, 2016Assignee: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Wayne W Hazen, Lawrence D May, Jay C Smith, David R Baughman
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Publication number: 20160068977Abstract: 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.Type: ApplicationFiled: November 13, 2015Publication date: March 10, 2016Applicant: FREEPORT MINERALS CORPORATIONInventors: Joanna M. Robertson, Thomas R. Bolles, Dennis D. Gertenbach
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Patent number: 9187803Abstract: 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.Type: GrantFiled: March 14, 2013Date of Patent: November 17, 2015Assignee: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
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Patent number: 9175366Abstract: 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 carbonate, 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.Type: GrantFiled: March 14, 2013Date of Patent: November 3, 2015Assignee: FREEPORT MINERALS CORPORATIONInventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
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Patent number: 8920773Abstract: 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 preprocessed metal bearing material in acid medium.Type: GrantFiled: December 17, 2012Date of Patent: December 30, 2014Assignee: Freeport Minerals CorporationInventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
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Publication number: 20140260806Abstract: 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.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: FREEPORT-MCMORAN CORPORATIONInventors: Joanna M. Robertson, Thomas R. Bolles, Dennis D. Gertenbach
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Publication number: 20140260807Abstract: 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 carbonate, 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.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: FREEPORT-MCMORAN CORPORATIONInventors: Joanna M. Robertson, Thomas R. Bolles, Dennis D. Gertenbach
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Patent number: 4526763Abstract: In a process for the production of alumina from aluminous raw material, an ammonoalunite intermediate is formed. The raw material is preferably a clay which is leached with sulfuric acid to form an aluminous solution which is separated from the solid materials. After any required extraction of iron, such as by liquid ion exchange, the solution is subjected to elevated temperatures and pressures in the presence of ammonium ions to form ammonoalunite which is recovered as a precipitate. The liquor is recycled to leach the clay, while the ammonoalunite is thermally decomposed to alumina. Gases liberated during decomposition are scrubbed with recycled liquor to form clay leach liquor. The alumina may be purified by washing with sulfuric acid to obtain a purity suitable for aluminum electrolysis.Type: GrantFiled: May 3, 1982Date of Patent: July 2, 1985Assignee: Atlantic Richfield CompanyInventors: Robert W. Bartlett, Thomas R. Bolles