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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 9954258 B1

PDFFull Text
Date of Patent:
Apr. 24, 2018

Filed:

Aug. 18, 2016

Manufacturing method of high purity manganese sulphate from the waste liquid of battery recycling process

Applicant:

Kangwon National University University-industry Cooperation Foundation, Gangwon-do, KR;

Inventor:

Young Jun Song, Gangwon-do, KR;

Assignee:

KANGWON NATIONAL UNIVERSITY University-Industry Cooperation Foundation, Gangwon-Do, KR;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Sheng H Davis

Int. Cl.
CPC ...
H01M 10/54 (2006.01); C01F 11/46 (2006.01); H01M 10/0525 (2010.01); C01G 45/10 (2006.01); C22B 47/00 (2006.01); C02F 9/00 (2006.01); C01G 45/00 (2006.01); C01G 51/00 (2006.01); C01G 53/11 (2006.01); C01G 3/12 (2006.01); C01G 9/08 (2006.01); C22B 7/00 (2006.01); C01F 7/02 (2006.01); C02F 1/26 (2006.01); C02F 1/66 (2006.01); C02F 103/34 (2006.01); C02F 101/20 (2006.01); C02F 1/28 (2006.01); C02F 1/52 (2006.01); C02F 101/10 (2006.01);
U.S. Cl.
CPC ...
H01M 10/54 (2013.01); C01F 7/02 (2013.01); C01F 11/462 (2013.01); C01G 3/12 (2013.01); C01G 9/08 (2013.01); C01G 45/00 (2013.01); C01G 45/10 (2013.01); C01G 51/30 (2013.01); C01G 53/11 (2013.01); C02F 9/00 (2013.01); C22B 7/006 (2013.01); C22B 47/00 (2013.01); H01M 10/0525 (2013.01); C01P 2006/80 (2013.01); C02F 1/26 (2013.01); C02F 1/283 (2013.01); C02F 1/5236 (2013.01); C02F 1/66 (2013.01); C02F 2101/101 (2013.01); C02F 2101/206 (2013.01); C02F 2103/34 (2013.01); C02F 2209/02 (2013.01); Y02P 10/234 (2015.11); Y02W 30/84 (2015.05);
Abstract

Provided is a method of manufacturing high-purity, high-quality manganese sulfate which can be immediately used for manufacturing a lithium ion secondary battery from manganese sulfate waste liquid of a wasted battery. Since impurities are removed from the manganese sulfate waste liquid by using sulfides causing no secondary contamination in the manganese sulfate waste liquid and the manganese sulfate is manufactured by performing evaporation concentration through heating, the manufacturing method is very environment-friendly and economical. Since the manganese recovering process improving the manufacturing yield of the manganese sulfate and the waste water treatment process capable of recycling the source materials and discharging waste water are integrated, the manufacturing method is very efficient and environment-friendly. The manufacturing method is applied to the recycling industry, and thus, it is possible to obtain effects of preventing environmental pollution and facilitating recycling the resources.

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