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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.:

US 9677153 B1

PDFFull Text
Date of Patent:
Jun. 13, 2017

Filed:

Oct. 09, 2013

Method for the hydrometallurgical recovery of lithium from the fraction of used galvanic cells containing lithium, iron and phosphate

Applicant:

Rockwood Lithium Gmbh, Franfurt 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:

Jeremy J. Kliebert

Primary Examiner:

Steven Bos

Int. Cl.
CPC ...
C22B 26/00 (2006.01); C22B 26/12 (2006.01); C22B 7/00 (2006.01); B01D 61/44 (2006.01); B01D 61/58 (2006.01); C01B 25/45 (2006.01); C01D 15/02 (2006.01);
U.S. Cl.
CPC ...
C22B 26/12 (2013.01); B01D 61/445 (2013.01); B01D 61/58 (2013.01); C01B 25/45 (2013.01); C01D 15/02 (2013.01); C22B 7/007 (2013.01); Y02P 10/234 (2015.11);
Abstract

A method for the hydrometallurgical recovery of lithium from the fraction of used galvanic cells containing lithium, iron and phosphate is disclosed. According to the method, lithium-iron-phosphate-containing fraction is introduced into sulfuric acid and/or hydrochloric acid, and hydrogen peroxide is added in an amount that is at least stoichiometric relative to the iron content to be oxidized of the lithium-iron-phosphate-containing fraction.

Find Patent Forward Citations

Wohlgemuth, David. (2017). Method for the hydrometallurgical recovery of lithium from the fraction of used galvanic cells containing lithium, iron and phosphate (U.S. Patent No. 9677153). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9677153

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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