Patent · US Active

Method for recovering a copper sulfide concentrate from an ore containing an iron sulfide

US9839917B2 · kind B2 · utility

1Cited by

29References

20Claims

0Family size

Assignees

EVONIK DEGUSSA GMBH · DE
MAGOTTEAUX INTERNATIONAL S.A. · BE

Inventors

Christopher Greet · Salisbury, AU
Gerhard Arnold · Hanau, DE
Ingo Hamann · Mount Olive, US
Alan Hitchiner · Morrinsville, NZ

Key dates

Filing date	Jul 11, 2014
Grant date	Dec 12, 2017
Priority date	—
Expiry date	Jul 11, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB03D2203/02
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.