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:
Jan. 24, 2017
Filed:
Jul. 04, 2011
Applicants:
Michael Holzapfel, Freising, DE;
Christian Vogler, Moosburg, DE;
Inventors:
Michael Holzapfel, Freising, DE;
Christian Vogler, Moosburg, DE;
Assignee:
Johnson Matthey PLC, London, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B02C 23/08 (2006.01); C01B 25/37 (2006.01); C01G 1/02 (2006.01); C01G 23/00 (2006.01); C01G 31/00 (2006.01); C01G 37/00 (2006.01); C01G 45/12 (2006.01); C01G 49/00 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01);
U.S. Cl.
CPC ...
B02C 23/08 (2013.01); C01B 25/37 (2013.01); C01G 1/02 (2013.01); C01G 23/005 (2013.01); C01G 31/00 (2013.01); C01G 37/00 (2013.01); C01G 45/1228 (2013.01); C01G 45/1235 (2013.01); C01G 45/1242 (2013.01); C01G 45/1257 (2013.01); C01G 49/0027 (2013.01); C01G 51/42 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); C01G 53/54 (2013.01); C01P 2002/52 (2013.01); C01P 2002/54 (2013.01); C01P 2006/80 (2013.01);
Abstract
A method of reducing magnetic and/or oxidic contaminants in lithium metal oxygen compounds in particle form, in order to obtain purified lithium metal oxygen compounds, by means of treatment in a grinding process and sifting process with continuous or non-continuous removal and obtaining of the purified lithium metal oxygen compound. The grinding process and sifting process are terminated prematurely before the residue amounts to less than 1% of the quantity m. The residue, containing contaminants, is discarded.