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:
May. 07, 1985
Filed:
Sep. 15, 1983
Applicant:
Inventors:
H Wayne Beck, Russell, KY (US);
Charles F Lochow, Jr, Russell, KY (US);
Charles W Nibert, Ashland, KY (US);
Assignee:
Ashland Oil, Inc., Ashland, KY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208113 ; 208 / ; 208120 ;
Abstract
Passivation of vanadium accumulated on catalyst, e.g. crystalline zeolite hydrocarbon conversion catalyst in the rare earth and/or ammonia exchanged zeolite form, effectively minimizes the degrading characteristics of accumulated vanadium on the catalyst. The passivation is accomplished by impregnating or, preferable, precipitating, rare earths, e.g. lanthanum, onto the catalyst particles before and/or after vanadium accumulation. The process is also applicable to inert sorbent particles, e.g. those used for removing carbon and metals from contaminated hydrocarbons.