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:
Jan. 03, 1978
Filed:
Sep. 30, 1976
Applicant:
Inventors:
Michael Dubeck, Birmingham, MI (US);
Gordon G Knapp, Southfield, MI (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G / ; C01G / ; C01G / ;
U.S. Cl.
CPC ...
423 32 ; 423 49 ; 423 53 ; 423150 ; 423D / ;
Abstract
A process is disclosed for extracting nickel, copper, cobalt and molybdenum from a complex ore containing copper, nickel, cobalt, molybdenum, manganese and iron. The process features treatment of the ore with gaseous compound followed by leaching with an aqueous ammonia/ammonium salt solution into which is additionally introduced sulfite.