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:
Jan. 20, 1998
Filed:
Jan. 31, 1996
Applicant:
Inventors:
Zygmunt Tomczuk, Lockport, IL (US);
William E Miller, Naperville, IL (US);
Gerald K Johnson, Downers Grove, IL (US);
James L Willit, Batavia, IL (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
A62D / ; C01D / ;
U.S. Cl.
CPC ...
588201 ; 4231795 ;
Abstract
A method of removing Li.sub.2 O present in an electrolyte predominantly of LiCl and KCl. The electrolyte is heated to a temperature not less than about 500.degree. C. and then Al is introduced into the electrolyte in an amount in excess of the stoichiometric amount needed to convert the Li.sub.2 O to a Li-Al alloy and lithium aluminate salt. The salt and aluminum are maintained in contact with agitation for a time sufficient to convert the Li.sub.2 O.