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:
May. 24, 2016
Filed:
Dec. 03, 2010
Applicant:
Barun Gorain, Toronto, CA;
Inventor:
Barun Gorain, Toronto, CA;
Assignee:
Barrick Gold Corporation, Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03D 1/14 (2006.01); B03D 1/00 (2006.01); C02F 1/24 (2006.01); C22B 1/00 (2006.01); C22B 15/00 (2006.01); B03D 1/08 (2006.01); B03D 1/002 (2006.01); B03B 5/60 (2006.01); B03B 5/64 (2006.01); B01D 1/00 (2006.01); C21B 15/00 (2006.01);
U.S. Cl.
CPC ...
B03D 1/085 (2013.01); B03D 1/002 (2013.01); C22B 15/0008 (2013.01); B03D 2201/06 (2013.01); B03D 2203/02 (2013.01); B03D 2203/025 (2013.01);
Abstract
The present invention relates to flotation of sulfidic copper- molybdenum- and gold-containing minerals. More specifically, the invention relates to sulfoxy reagent-assisted flotation for separating of sulfides of copper, molybdenum and gold from pyrite, marcasite, pyrrhotite, arsenopyrite, and other gangue minerals following aerating by an oxidizing gas and contacting by a sulfoxy reagent. To promote collection and flotation the feed mineral materials are preferably not contacted with an externally generated non-oxidizing gas to lower the dissolved molecular oxygen content prior to flotation.