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. 30, 2014
Filed:
May. 29, 2012
Applicants:
Yuji Tanimura, Tokyo, JP;
Kohei Mitsuhashi, Tokyo, JP;
Ryo Kawarabuki, Tokyo, JP;
Masanobu Kawata, Tokyo, JP;
Yutaka Yamaguchi, Tokyo, JP;
Inventors:
Yuji Tanimura, Tokyo, JP;
Kohei Mitsuhashi, Tokyo, JP;
Ryo Kawarabuki, Tokyo, JP;
Masanobu Kawata, Tokyo, JP;
Yutaka Yamaguchi, Tokyo, JP;
Assignees:
Nittetsu Mining Co., Ltd., Tokyo, JP;
Sumitomo Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D 15/08 (2006.01); C01D 15/04 (2006.01);
U.S. Cl.
CPC ...
C01D 15/08 (2013.01); C01D 15/04 (2013.01);
Abstract
The present invention relates to a method for producing lithium carbonate, the method including: mixing ammonia and carbon dioxide gas (carbonate gas) with an aqueous solution containing lithium chloride to conduct a carbonation reaction; and thereafter, recovering a produced solid by solid-liquid separation, and also relates to a method for producing high purity lithium carbonate.