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:
Aug. 17, 1982
Filed:
Aug. 11, 1980
Applicant:
Inventors:
Bernard H Lucas, Ottawa, CA;
Gordon M Ritcey, Ottawa, CA;
Assignee:
Canadian Patents & Development Ltd., Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C01G / ;
U.S. Cl.
CPC ...
423 54 ; 423 56 ; 423 58 ; 423 63 ; 423 65 ; 423 67 ; 423112 ; 423127 ;
Abstract
Chromium and vanadium can be co-extracted from alkaline solutions or leach liquors containing these metals using quaternary amine solvent mixtures. The alkaline leach liquors usually are derived by leaching of calcined ores or concentrates. The loaded solvent mixture is scrubbed with chromium solution to remove all metals except chromium, and the chromium is then recovered from the solvent phase. The vanadium can be recovered from the scrub liquor. Recovery of aluminum is also possible.