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. 30, 1983
Filed:
Aug. 31, 1981
Applicant:
Inventors:
Victor A Ettell, Mississauga, CA;
Juraj Babjak, Mississauga, CA;
Assignee:
INCO Ltd., Toronto, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G / ; C01G / ; C01G / ; C22B / ;
U.S. Cl.
CPC ...
423 34 ; 423 37 ; 423144 ; 423150 ;
Abstract
The metal content of nickel-cobalt mixed sulfide slurries is recovered by atmospheric oxidation leaching, thereafter removing dissolved copper by metathesis with further mixed sulfide feed, treating the filtrate after liquid-solids separation with ammonia to selectively precipitate cobalt, separating the cobalt precipitate and working up the resulting filtrate to recover nickel.