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:
Apr. 03, 2001
Filed:
Apr. 08, 1999
Applicant:
Inventors:
John C. Gathje, Longmont, CO (US);
Gary L. Simmons, Castle Rock, CO (US);
Assignee:
Newmont Mining Corporation, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/00 ; C22B 1/100 ;
U.S. Cl.
CPC ...
B03D 1/00 ; C22B 1/100 ;
Abstract
A method is provided for flotation of refractory auriferous sulfide using an oxygen-deficient flotation gas. The method is particularly suited for non-selective flotation of different iron-containing sulfide mineral species. Comminution prior to flotation may be performed in an oxygen-deficient environment.