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:
Dec. 12, 2017
Filed:
Jul. 11, 2014
Christopher Greet, Greenwith, AU;
Gerhard Arnold, Ringwood, NJ (US);
Ingo Hamann, Chester, NJ (US);
Alan Hitchiner, Morrinsville, NZ;
Christopher Greet, Greenwith, AU;
Gerhard Arnold, Ringwood, NJ (US);
Ingo Hamann, Chester, NJ (US);
Alan Hitchiner, Morrinsville, NZ;
Evonik Degussa GmbH, Essen, DE;
Magotteaux International S.A., Vaux-sous-Chèvremont, BE;
Abstract
In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, wet grinding of the ore with grinding media made of high chromium cast iron alloy having a chromium content of from 10 to 35% by weight is combined with an addition of hydrogen peroxide to the conditioned mineral pulp before or during flotation in order to improve concentrate grade and recovery of copper sulfides.