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.

Date of Patent:
Aug. 09, 2011

Filed:

Mar. 16, 2007
Applicants:

Takao Harada, Kobe, JP;

Hidetoshi Tanaka, Shinagawa-ku, JP;

Kiminori Hajika, Kobe, JP;

Tadashi Yaso, Kobe, JP;

Toshiyuki Kurakake, Kobe, JP;

Inventors:

Takao Harada, Kobe, JP;

Hidetoshi Tanaka, Shinagawa-ku, JP;

Kiminori Hajika, Kobe, JP;

Tadashi Yaso, Kobe, JP;

Toshiyuki Kurakake, Kobe, JP;

Assignee:

Kobe Steel, Ltd., Kobe-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 13/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

The disclosure relates to improvements of technology for producing metallic iron by thermally reducing an iron source such as iron ore with a carbonaceous reductant such as coke by including efficiently reducing iron oxides into metallic iron at a lower operation temperature while conducting carburization, and efficiently separating the generated metallic iron from slag-forming components such as gangue components contained in raw material ore whereby metallic iron with controlled carbon concentrations can be produced in high yield.


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