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:
Jun. 21, 1983
Filed:
Dec. 24, 1981
Applicant:
Inventor:
Lois L McCorriston, Mississauga, CA;
Assignee:
Gulf Canada Limited, Toronto, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 68 ; 423 67 ; 423 62 ;
Abstract
Vanadium values are recovered from cokes and ashes derived from heavy oils by a novel process comprising heating in the presence of alkali metal sulphate, contacting the resulting solid residue with water and recovering the vanadium values dissolved therein.