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. 13, 2012
Filed:
Oct. 22, 2008
Applicants:
Johann Reichel, Duesseldorf, DE;
Lutz Rose, Duisburg, DE;
Inventors:
Johann Reichel, Duesseldorf, DE;
Lutz Rose, Duisburg, DE;
Assignee:
SMS Siemag Aktiengesellschaft, Duesseldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 13/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to allow a significant reduction of the steel production cost when producing stainless steel with the alloying elements chromium and nickel, according to the invention, it is proposed to perform the intermediate production of ferrochrimium and ferronickel in two separate direct reduction processes based on low-cost chromium ore and nickel ore in two SAF () arranged in parallel on the primary side of a processing converter ().