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:
Apr. 14, 1987
Filed:
Nov. 27, 1985
Applicant:
Inventors:
Akira Yazawa, Sendai, JP;
Kimio Itagaki, Sendai, JP;
Kazuo Sezaki, Funabashi, JP;
Kenji Matsuda, Matsuko, JP;
Kazuo Kanazawa, Yokohama, JP;
Mitsuo Hayashi, Yokohama, JP;
Katsuo Katada, Kamakura, JP;
Assignee:
Ishikawajima-Harima Jukogyo Kabushi Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 63 ; 75 6 / ; 75 82 ; 420129 ;
Abstract
Cobalt, nickel and/or radioactive cobalt are separated from an alloy containing elements belonging to the iron group or family in such a manner that the alloy is melted in a molten bath of tin, lead and/or an alloy thereof whose weight is more than ten times as heavy as the alloy and then silicon is added to the molten bath so that a Fe-Si phase floats up and is separated, concentrating the cobalt and nickel in said bath.