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:
Sep. 21, 2010
Filed:
Nov. 03, 2004
Applicants:
David Dreisinger, Delta, CA;
Graham Pratt, Makedonitissa, CY;
Kenneth Gordon Baxter, Bullcreek, AU;
Inventors:
Assignee:
OZ Minerals Limited, Melbourne, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a method for leach extraction of copper/iron/sulphur ores and concentrates including leaching the mineral with an aqueous stream containing ferric ions and sulphuric acid in the presence of oxygen, the aqueous stream including a solution formed by reaction of basic ferric sulphate with excess suphuric acid. Integrated methods of forming and releaching basic ferric sulphate are also described.