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. 20, 1984
Filed:
Jun. 27, 1983
Applicant:
Inventor:
Charles C Payne, Aurora, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
208120 ; 208 / ; 2523131 ; 502 31 ; 502521 ;
Abstract
It is now known that molecular sieve cracking catalysts used in fluid catalytic cracking units which have been contaminated with such metals as vanadium and nickel can be restored by contacting such contaminated catalysts with antimony-containing compounds and then subsequently subjecting the thus-treated catalysts to elevated temperatures and an oxygen-containing gas whereby revitalization is achieved. The above process can be improved by using as a source of antimony oxide an oil-in-water emulsion of an aqueous antimony sol.