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. 01, 1988
Filed:
Jul. 27, 1984
Applicant:
Inventors:
Francis Rauh, Plainsboro, NJ (US);
Henry A Pfeffer, III, Mercerville, NJ (US);
Assignee:
Intermountain Research & Development Corporation, Green River, WY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C01D / ; C01D / ;
U.S. Cl.
CPC ...
4232 / ; 423421 ; 2330 / ;
Abstract
Crystal solids made via the continuous crystallization of a crude, concentrated aqueous feed solution are recovered as a crystalline solid product that is relatively free of impurities present in the crystallizer liquor. A portion of the withdrawn crystallizer slurry is concentrated in a first hydroclone, diluted with crystallizer feed solution, concentrated in a second hydroclone, and centrifuged and dried to recover the crystalline solid product.