The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2021
Filed:
Jan. 15, 2020
Applicant:
The University of British Columbia, Vancouver, CA;
Inventors:
David Dixon, Delta, CA;
Edouard Asselin, Richmond, CA;
Ahmad Ghahreman, Kingston, CA;
Zihe Ren, Vancouver, CA;
Assignee:
The University of British Columbia, Vancouver, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/08 (2006.01); C22B 3/42 (2006.01); C22B 15/00 (2006.01); C22B 3/00 (2006.01); C22B 3/20 (2006.01); C25C 1/12 (2006.01); C01G 3/10 (2006.01); C01G 53/10 (2006.01); C01G 11/00 (2006.01); C01G 49/14 (2006.01); C01G 1/00 (2006.01);
U.S. Cl.
CPC ...
C22B 3/08 (2013.01); C01G 1/00 (2013.01); C01G 3/10 (2013.01); C01G 11/00 (2013.01); C01G 49/14 (2013.01); C01G 53/10 (2013.01); C22B 3/0004 (2013.01); C22B 3/42 (2013.01); C22B 15/0071 (2013.01); C22B 17/04 (2013.01); C22B 23/043 (2013.01); C25C 1/12 (2013.01); Y02P 10/20 (2015.11);
Abstract
This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.