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:
Oct. 15, 2019
Filed:
Mar. 29, 2016
Applicant:
Jx Nippon Mining & Metals Corporation, Tokyo, JP;
Inventors:
Assignee:
JX NIPPON MINING & METALS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/08 (2006.01); C01G 45/02 (2006.01); H01M 10/54 (2006.01); C01G 49/02 (2006.01); C22B 3/44 (2006.01); C22B 7/00 (2006.01); C22B 23/00 (2006.01); C22B 47/00 (2006.01);
U.S. Cl.
CPC ...
C22B 3/08 (2013.01); C01G 45/02 (2013.01); C01G 49/02 (2013.01); C22B 3/44 (2013.01); C22B 7/00 (2013.01); C22B 7/007 (2013.01); C22B 23/00 (2013.01); C22B 47/00 (2013.01); H01M 10/54 (2013.01); Y02P 10/234 (2015.11); Y02W 30/84 (2015.05);
Abstract
The present invention provides a method for removing iron from an iron-containing solution containing an iron ion, comprising adding a lithium ion battery cathode material containing manganese to an acidic sulfuric acid solution to obtain a cathode material-containing solution, and then precipitating a manganese ion as manganese dioxide in a mixed solution obtained by mixing the iron-containing solution with the cathode material-containing solution while precipitating the iron ion contained in the iron-containing solution as a solid.