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:
Dec. 14, 1999
Filed:
May. 07, 1997
Applicant:
Inventors:
Tetsuo Okamoto, Chita, JP;
Hideharu Sakai, Nagoya, JP;
Assignee:
Daido Steel Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ; C22B / ;
U.S. Cl.
CPC ...
75 1015 ; 75 1018 ; 75 1062 ; 75 1063 ; 75454 ; 75502 ; 75623 ;
Abstract
A process for producing metals in the reduced state from their oxides using a simple and less expensive facility with lower running cost. A metal oxide in the form of particles is supplied into a high temperature flame from an oxygen burner in a reactor furnace to heat and melt the metal oxide. A reducing agent is also supplied into the flame to cause a reducing reaction of the molten metal oxide with the reducing agent. The resulting metal is recovered.