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Title:
METHOD FOR PRODUCING FERRO COKE
Document Type and Number:
Japanese Patent JP2009221296
Kind Code:
A
Abstract:

To provide a method for producing ferro coke having high cold strength as strength after carbonization and post-reaction strength after reaction with CO2 gas by carbonizing a molded material consisting of an iron oxide-containing material and a carbon-containing material.

The molded material 10, obtained by mixing the iron-containing material and the carbon-containing material and molding the mixture, is carbonized by heating for producing the ferro coke 12. In this process, a part of the iron-containing material and a part of the carbon-containing material are mixed to produce pseudo particles 6 having iron content concentration higher than that of a mixture 4 of the residue of the iron-containing material and the residue of the carbon-containing material, and the pseudo particles 6 are mixed with the mixture 4 to produce the molded material 10. Preferably, the iron content concentration of the pseudo particles 6 is higher than that of the mixture 4 by 5 mass% or more, a maximum particle diameter is 10 mm or less, and a ratio of the pseudo particles 6 in the molded material 10 is 5-50 mass%.


Inventors:
YAMAMOTO TETSUYA
SATO TAKESHI
ANYASHIKI TAKASHI
FUJIMOTO HIDEKAZU
Application Number:
JP2008065721A
Publication Date:
October 01, 2009
Filing Date:
March 14, 2008
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
C10B53/08; C10B57/04
Domestic Patent References:
JP2007177214A2007-07-12
JP2006283008A2006-10-19
JP2006206982A2006-08-10
JP2005068372A2005-03-17
Attorney, Agent or Firm:
Kenichiro Ochiai
Kazuhiro Mori