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. 16, 2014
Filed:
Apr. 09, 2014
Applicant:
Retriev Technologies Incorporated, Anaheim, CA (US);
Inventors:
W. Novis Smith, Philadelphia, PA (US);
James Applegate, Wilmington, DE (US);
Assignee:
Retriev Technologies Incorporated, Anaheim, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 45/02 (2006.01); C01G 9/02 (2006.01); H01M 6/52 (2006.01); H01M 4/50 (2010.01); H01M 4/48 (2010.01);
U.S. Cl.
CPC ...
H01M 6/52 (2013.01); H01M 4/50 (2013.01); H01M 4/48 (2013.01); C01G 45/02 (2013.01); C01G 9/02 (2013.01);
Abstract
High purity MnO and zinc oxide may be efficiently recovered from alkaline and/or carbon zinc batteries using a process involving the treatment of the crushed batteries with an alkali hydroxide to produce insoluble manganese oxides and an alkali zincate solution. Zinc oxide is obtained by reacting the zinc solution with carbon dioxide or an acid such as a mineral acid and furnacing. The manganese oxides are converted to MnO by furnacing under an inert atmosphere.