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. 17, 1976
Filed:
Jun. 24, 1974
Applicant:
Inventors:
Malcolm Charles Bell, Sudbury, CA;
Ramamritham Sridhar, Mississauga, CA;
Assignee:
The International Nickel Company, Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 82 ; 75-6 ; 423 88 ; 423509 ;
Abstract
Nickel matte containing at least about 28% sulfur is refined with respect to arsenic, antimony or bismuth by contacting molten matte with gaseous chlorine to chlorinate and volatilize arsenic, antimony or bismuth from the nickel matte. Advantageously, the molten nickel matte is provided with a halide flux to minimize volatilization of any nickel chloride that is formed.