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:
Sep. 29, 2015
Filed:
May. 27, 2011
Applicant:
Masahiro Ueda, Kyoto, JP;
Inventor:
Masahiro Ueda, Kyoto, JP;
Assignee:
EMPIRE TECHNOLOGY DEVELOPMENT LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/12 (2006.01); H01M 10/54 (2006.01); C22B 26/12 (2006.01); C08G 77/06 (2006.01); C07F 7/21 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/54 (2013.01); C07F 7/12 (2013.01); C07F 7/21 (2013.01); C08G 77/06 (2013.01); C22B 26/12 (2013.01); H01M 10/0525 (2013.01); Y02E 60/122 (2013.01); Y02W 30/84 (2015.05);
Abstract
A process for recovering Li-ions can include: providing a composition having Li-ions to be extracted therefrom; removing materials from the Li-ions; introducing one or more cyclic siloxane to the Li-ions so as to form one or more cyclic siloxane-Li-ion complexes; extracting the one or more cyclic siloxane-Li-ion complexes by one or more liquid-liquid extraction steps; separating an organic phase having the cyclic siloxane-Li-ion complexes from an aqueous phase; removing water from the organic phase; filtering the organic phase to obtain a filtrate; and obtaining one or more Li-ions (e.g., Li salts) from the filtrate.