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:
Sep. 10, 2024
Filed:
Mar. 23, 2021
Applicant:
Midrex Technologies, Inc., Charlotte, NC (US);
Inventors:
Keith Marshall Bastow-Cox, Charlotte, NC (US);
Todd Michael Astoria, Harrisburg, NC (US);
Gregory Darel Hughes, Charlotte, NC (US);
Assignee:
Midrex Technologies, Inc., Charlotte, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 13/00 (2006.01); C21B 13/02 (2006.01);
U.S. Cl.
CPC ...
C21B 13/0073 (2013.01); C21B 13/02 (2013.01);
Abstract
A method for producing direct reduced iron having increased carbon content, comprises delivering each of the herein-described mixed carburizing gas streams, which are of different composition, to a transition zone of a direct reduction furnace, and exposing partially or completely reduced iron oxide to the mixed carburizing gas streams to increase the carbon content of resulting direct reduced iron to greater than 4.5 wt. %.