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:
Apr. 17, 1984
Filed:
Sep. 20, 1982
Robert L Chiang, Anaheim, CA (US);
Julius Scherzer, Anaheim, CA (US);
Harshaw/Filtrol Partnership, Oakland, CA (US);
Abstract
In the process of preparing fluid catalytic cracking catalysts where an aqueous slurry, containing a zeolite, or zeolites, an alumina-containing binder, a clay and a silica source, is subjected to drying to form essentially water-free solid catalyst particles, the viscosity of the aqueous slurry can be significantly reduced by incorporation of a small but effective amount of [Al.sub.2 (OH).sub.6-y Cl.sub.y ].sub.x additive. Due to this decrease in viscosity, the solids content of the slurry can be raised until the original, additive-free viscosity level, is reached, which, in turn, results in increased solids throughput rate in the drying step with corresponding savings of thermal energy and improved catalyst production efficiency.