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. 09, 1999
Filed:
Jan. 14, 1994
Applicant:
Inventor:
Frank M Stephens, Jr, Lakewood, CO (US);
Assignee:
Iron Carbide Holdings, Ltd., Lakewood, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423439 ; 423440 ;
Abstract
The present in a process for the conversion of iron-containing material into iron carbide. The process includes a first step in which the iron-containing material is contacted with a reducing gas that contains no more than a small amount of reactive carbon to produce metallic iron and a second step in which the metallic iron is contacted with a reducing and carburizing gas to produce iron carbide. The reducing and carburizing gas includes reactive carbon, hydrogen, and methane. The iron carbide product is of high purity.