METHOD FOR PRODUCING CARBON MATERIAL

WIPO Patent Application WO/2012/118151

A1

The present invention is a method for producing a carbon material for reduction for refining of ion or a nonferrous metal, a carbon material for structures, a carbon material for electrical materials, or a carbon material that is used as a starting material for the foregoing carbon materials. The method comprises: an ash-free coal production step (S1) wherein coal is modified with use of a solvent so as to produce ash-free coal that is modified coal; an ash-free coal heating step (S2) wherein the ash-free coal produced in the ash-free coal production step (S1) is subjected to a heat treatment so as to produce modified ash-free coal that has a volatile matter content (VM) of 40% by mass or less; a molding step (S3) wherein the modified ash-free coal produced in the ash-free coal heating step (S2) is used as a main component of a molding material and molded so as to produce a molded body that has an apparent specific gravity of 0.9 g/cm3 or more; and a carbonization step (S4) wherein the molded body produced in the molding step (S3) is subjected to a carbonization treatment so as to obtain a carbon material. Consequently, a high-purity carbon material having an extremely low ash content concentration can be economically obtained, said carbon material being dense and free from deformation.

HAMAGUCHI MAKI
SAKAI KOJI
OKUYAMA NORIYUKI
SHISHIDO TAKAHIRO

PCT/JP2012/055249

September 07, 2012

March 01, 2012

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KOBE STEEL LTD (JP)
HAMAGUCHI MAKI
SAKAI KOJI
OKUYAMA NORIYUKI
SHISHIDO TAKAHIRO

C01B31/02; C10B53/07

JP2009144130A	2009-07-02
JP2011001240A	2011-01-06
JP2009120464A	2009-06-04

OGURI Shohei et al. (JP)
Shohei Oguri (JP)

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