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. 23, 1981
Filed:
Jul. 28, 1980
Applicant:
Inventors:
Victor A Ettel, Mississauga, CA;
Eric A Devuyst, Mississauga, CA;
Juraj Babjak, Mississauga, CA;
John Ambrose, Oakville, CA;
Gerald V Glaum, Oakville, CA;
Assignee:
The International Nickel Company, Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204112 ; 204128 ; 7510 / ; 423 24 ; 423 92 ; 423100 ; 423138 ; 423139 ;
Abstract
A cobaltic oxide hydrate is mixed with spent sulfate electrolyte and the slurry is sparged with air to liberate any entrained chloride ions as gaseous chlorine. Thereafter a reducing agent is used to enable dissolution of the cobalt and obtaining of a chloride-free solution from which, after purification, cobalt can be electrowon.