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:
Nov. 07, 2000
Filed:
Jul. 12, 1999
Applicant:
Inventor:
Daniel A Boryta, Cherryville, NC (US);
Assignee:
Chemetall Foote Corporation, Kings Mountain, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D / ; C22B / ; C01F / ;
U.S. Cl.
CPC ...
4231795 ; 423163 ; 423164 ;
Abstract
A method for producing lithium carbonate by precipitating magnesium as the hydroxide from a brine concentrated to a lithium concentration of about 6%. Lithium is then precipitated from the brine by addition of recycled limed mother liquor from a previous lithium precipitation step.