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:
Nov. 04, 2003
Filed:
Dec. 21, 2001
Applicant:
Inventors:
Gary L. Simmons, Castle Rock, CO (US);
John C. Gathje, Longmont, CO (US);
Assignee:
Newmont USA Limited, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/08 ;
U.S. Cl.
CPC ...
C22B 3/08 ;
Abstract
A method for the treatment of sulfide ores containing silver by pressure oxidation. The method includes the addition of a sulfate-binding material to reduce the formation of jarosite species during pressure oxidation. Silver can then be recovered from the solids portion of the discharge slurry. A jarosite reduction step, such as by a lime boil, that is typically required to recover silver after pressure oxidation can advantageously be eliminated.
Simmons, Gary. (2003). High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species (U.S. Patent No. 6641642). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6641642
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile