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. 20, 2016
Filed:
Mar. 21, 2013
Applicant:
Tosoh Corporation, Yamaguchi, JP;
Inventors:
Takahiro Matsunaga, Yamaguchi, JP;
Tadashi Kodama, Yamaguchi, JP;
Naoto Suzuki, Yamaguchi, JP;
Masao Sawano, Yamaguchi, JP;
Assignee:
TOSOH CORPORATION, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 45/02 (2006.01); C01G 45/12 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 45/02 (2013.01); C01G 45/1242 (2013.01); C01G 45/1257 (2013.01); H01M 10/0525 (2013.01); C01P 2002/32 (2013.01); C01P 2002/52 (2013.01); C01P 2004/52 (2013.01); C01P 2004/61 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01); C01P 2006/40 (2013.01); C01P 2006/80 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11); Y10T 428/2982 (2015.01);
Abstract
To provide trimanganese tetraoxide having a high tap density and a uniform particle size distribution, and its production process. Trimanganese tetraoxide having a tap density of at least 1.5 g/cmand a relative standard deviation of the particle size of at most 40%. A process for producing such trimanganese tetraoxide, which comprises a step of mixing a manganese aqueous solution and an alkaline aqueous solution so that the oxidation-reduction potential is at least 0 mV and OH/Mn(mol/mol) is at most 0.55.