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. 11, 1979
Filed:
Oct. 20, 1978
Applicant:
Inventor:
Donald A Hickson, Benicia, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F25D / ; B01D / ;
U.S. Cl.
CPC ...
62534 ; 210 71 ;
Abstract
A method for separating collidal zeolite crystals from aqueous mother liquor solutions with conventional filtration apparatus by initially freezing the dispersion to a slush and conducting the filtration operation as the slush melts.