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:
Oct. 09, 1984
Filed:
May. 04, 1983
Applicant:
Inventors:
Robert L Chiang, Anaheim, CA (US);
Julius Scherzer, Anaheim, CA (US);
Assignee:
Harshaw/Filtrol Partnership, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502 68 ;
Abstract
Preparation of fluid catalytic cracking catalysts is improved by incorporating a viscosity-reducing agent, having the general formula of Al.sub.2 (OH).sub.5 NO.sub.3, in the aqueous slurry containing the catalyst components of zeolite, clay, aluminous binder, and a silica source, prior to drying of the slurry. The viscosity-reducing additive allows an increase in the solids content of the aqueous slurry and thus improves the efficiency of the drying operation.