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. 14, 1978
Filed:
May. 13, 1976
Applicant:
Inventors:
Alfred Kryczun, Cologne, DT;
Gerhard Melcher, Cologne, DT;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 76 ; 75 72 ; 266217 ;
Abstract
Method and apparatus for the thermal refinement of contaminated copper in the molten phase wherein superimposed molten phases are formed in a treating vessel, the lower being the copper bearing material and the upper phase containing slag, and reactive gases are simultaneously injected into each of the molten phases.