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:
Feb. 26, 1985
Filed:
Jul. 28, 1983
Applicant:
Inventors:
David E Allan, Baton Rouge, LA (US);
Byron V Molstedt, Baton Rouge, LA (US);
Raam R Mohan, Berkeley Heights, NJ (US);
Assignee:
Exxon Research & Engineering Co., Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C10G / ;
U.S. Cl.
CPC ...
502 27 ; 4819 / ; 208123 ; 423 68 ; 423150 ; 502 21 ; 502 28 ; 502 39 ; 502 51 ; 502 55 ; 502516 ;
Abstract
A tungsten-containing catalyst associated with coke containing vanadium and nickel is recovered by a method which includes steam gasification, low temperature burning to remove at least a portion of the coke and selective extraction of the nickel and vanadium.