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:
Jul. 11, 2017
Filed:
Oct. 09, 2013
Applicant:
Rockwood Lithium Gmbh, Frankfurt am Main, DE;
Inventors:
David Wohlgemuth, Frankfurt, DE;
Mark Andre Schneider, Friedrichsdorf-Burgholzhausen, DE;
Rebecca Spielau, Eppstein, DE;
Johannes Willems, Frankfurt, DE;
Martin Steinbild, Frankfurt, DE;
Assignee:
Rockwood Lithium GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 26/00 (2006.01); C22B 26/12 (2006.01); C22B 7/00 (2006.01); C01B 25/45 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); C22B 3/00 (2006.01); H01M 10/54 (2006.01);
U.S. Cl.
CPC ...
C22B 26/12 (2013.01); C01B 25/45 (2013.01); C01G 51/42 (2013.01); C01G 53/42 (2013.01); C22B 7/007 (2013.01); C22B 23/043 (2013.01); C22B 23/0461 (2013.01); H01M 10/54 (2013.01); C01P 2006/40 (2013.01); Y02P 10/234 (2015.11); Y02W 30/84 (2015.05);
Abstract
A method for the hydrometallurgical recovery of lithium from a lithium transition metal oxide containing fraction of used galvanic cells is disclosed. According to the method, the lithium transition metal oxide containing fraction is introduced into sulphuric acid or hydrochloric acid, and hydrogen peroxide is added in an amount that is at least stoichiometric relative to the transition metal content to be reduced of the lithium transition metal oxide-containing fraction.