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:
Mar. 31, 2015
Filed:
Feb. 13, 2013
Applicant:
Jx Nippon Mining & Metals Corporation, Tokyo, JP;
Inventors:
Katsuyuki Sato, Hitachi, JP;
Manabu Manabe, Tokyo, JP;
Assignee:
JX Nippon Mining & Metals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 15/00 (2006.01); C22B 3/04 (2006.01);
U.S. Cl.
CPC ...
C22B 15/0067 (2013.01); C22B 3/04 (2013.01); C22B 15/0069 (2013.01);
Abstract
Provided is a method of leaching copper ore which contains chalcopyrite, the method includes a first leaching stage based on an oxidative leaching reaction of copper by iron (III) ion, and a second leaching stage, in succession to the first leaching stage, using a solution containing iodide ion and iron (III) ion.