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:
Jan. 17, 2017
Filed:
Apr. 23, 2014
Applicant:
Newmont Usa Limited, Greenwood Village, CO (US);
Inventors:
James Nicholas Orlich, Parker, CO (US);
Ronel Du Plessis Kappes, Castle Rock, CO (US);
John C. Gathje, Longmont, CO (US);
Assignee:
NEWMONT USA LIMITED, Greenwood Village, CO (US);
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/02 (2006.01); B03B 5/40 (2006.01); C22B 1/00 (2006.01); C22B 5/14 (2006.01); C22B 9/05 (2006.01); C22B 11/00 (2006.01);
U.S. Cl.
CPC ...
B03B 5/40 (2013.01); B03D 1/02 (2013.01); C22B 1/00 (2013.01); C22B 5/14 (2013.01); C22B 9/05 (2013.01); C22B 11/00 (2013.01); B03D 2201/007 (2013.01); B03D 2203/025 (2013.01);
Abstract
Processing of mineral material containing precious metal with one or more sulfide minerals and non-sulfide gangue minerals including acid-consuming carbonate may include preparation of a sulfide concentrate by flotation with the flotation or conditioning prior to flotation using a gas comprising carbon dioxide. Flotation may be at an acidic pH without prior decomposition of the acid-consuming carbonate and may be without addition of acid for pH adjustment.