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:
Jul. 17, 2001
Filed:
Apr. 09, 1999
Applicant:
Inventors:
Eiji Inoue, Kobe, JP;
Torakatsu Miyashita, Kobe, JP;
Yoshio Uchiyama, Akashi, JP;
Junya Nakatani, Kobe, JP;
Teruyuki Nakazawa, Koganei, JP;
Akio Nio, Kiyose, JP;
Assignee:
Kawasaki Jukogyo Kabushiki Kaisha, Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 3/130 ;
U.S. Cl.
CPC ...
C01B 3/130 ;
Abstract
Provided is a method for efficiently producing iron carbide depending on a particle size of an iron-containing material or the progress of reaction. In a fluidized bed reactor,, a coarse iron ore is fluidized in blocks,to,, a fine iron ore is fluidized in blocks,to,, and a flow rate of a reaction gas supplied to the blocks for the fine iron ore is regulated by a flow regulating valve