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:
Mar. 09, 1982
Filed:
Oct. 10, 1979
Applicant:
Inventor:
Manfred Driemeyer, Issum, DE;
Assignee:
Mannesmann DeMag AG, Duisburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75 38 ; 75 11 ; 75 40 ;
Abstract
The invention relates to methods and apparatus for manufacturing steel from iron ore dust by direct reduction. The iron ore dust is preheated, then reduced with a gas mixture contaning monoxide. Thereafter, the reduced product is charged by means of a gaseous aid or adjuvant into an iron smelt below the bath surface.