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. 24, 2001
Filed:
Aug. 24, 1999
Eiji Inoue, Kobe, JP;
Torakatsu Miyashita, Kobe, JP;
Yoshio Uchiyama, Akashi, JP;
Junya Nakatani, Kobe, JP;
Teruyuki Nakazawa, Koganei, JP;
Akio Nio, Kiyose, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Hyogo, JP;
Abstract
Disclosed is a method for producing iron carbide, in which metallic carbide is difficult to be formed on the inside of heating tubes of a tube-shaped heater for heating reducing gas and carburizing gas to be supplied to a reactor. Carburizing gas which is supplied to reactor,is heated in tube-shaped heater,by combustion gas used for heating reducing gas and circulating gas, and then a mixture comprising carburizing gas, reducing gas and circulating gas is supplied to reactor,. Iron-containing raw materials are reduced and carburized in reactor