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:
Jun. 23, 1981
Filed:
Apr. 11, 1979
Applicant:
Inventors:
Patrick M Brown, Exton, PA (US);
Susan R Jacob, Royersford, PA (US);
Assignee:
Foote Mineral Company, Exton, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D / ; C01D / ;
U.S. Cl.
CPC ...
2330 / ; 4231795 ; 423499 ;
Abstract
Lithium chloride containing small amounts of inorganic and/or organic impurities is purified by heating the lithium chloride above about 200.degree. C., cooling the compound to ambient temperatures and extracting it with isopropanol, separating the liquid and solid phases, removing the isopropanol and recovering lithium chloride of high purity.