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:
Dec. 23, 2025
Filed:
Nov. 17, 2020
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Wolfgang Rohde, Ludwigshafen, DE;
Regina Vogelsang, Ludwigshafen, DE;
Kerstin Schierle-Arndt, Ludwigshafen, DE;
Mattias Voges, Ludwigshafen, DE;
Birgit Gerke, Ludwigshafen, DE;
Anne-Marie Caroline Zieschang, Ludwigshafen, DE;
Matthias Rauls, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); B01D 9/00 (2006.01); B01D 11/02 (2006.01); C01G 53/50 (2025.01); C22B 7/00 (2006.01); C22B 26/12 (2006.01); H01M 4/48 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/54 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); B01D 9/0054 (2013.01); B01D 11/0288 (2013.01); C01G 53/50 (2013.01); C22B 7/006 (2013.01); C22B 26/12 (2013.01); H01M 4/483 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 10/54 (2013.01); C01P 2002/72 (2013.01); C01P 2004/51 (2013.01); C01P 2006/80 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract
A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of A) providing a crude lithium hydroxide as a solid, which contains fluoride; and (B) dissolving the crude lithium hydroxide solid with a lower alcohol such as methanol or ethanol provides good separation of lithium in high purity.