METHOD FOR PRODUCING CARBON FIBERS

Title:

METHOD FOR PRODUCING CARBON FIBERS

Document Type and Number:

WIPO Patent Application WO/2012/081249

Kind Code:

A1

Abstract:

Disclosed is a method for producing carbon fibers, which comprises a step wherein: a supported catalyst is obtained by having granular carriers such as calcium carbonate, calcium hydroxide or calcium oxide support a main catalyst element such as Fe, Co or Ni and a promoter element such as Ti, V, Cr, W or Mo; fibrous carbon is synthesized by bringing the supported catalyst into contact with a carbon element-containing substance at a synthesis reaction temperature; and then the thus-obtained fibrous carbon is subjected to a heat treatment at a temperature of 2,000˚C or more. The granular carriers are formed of a substance that is thermally decomposed at temperatures around the synthesis reaction temperature.

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Inventors:

KAMBARA EIJI (JP)

Application Number:

PCT/JP2011/007006

Publication Date:

June 21, 2012

Filing Date:

December 15, 2011

Export Citation:

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Assignee:

SHOWA DENKO KK (JP)
KAMBARA EIJI (JP)

International Classes:

D01F9/127; C01B31/02

Domestic Patent References:

WO2009116261A1

2009-09-24

Foreign References:

JP2010024609A	2010-02-04
JP2008174442A	2008-07-31
JP2010001173A	2010-01-07

Attorney, Agent or Firm:

KIKUMA, TADAYUKI (JP)
Tadayuki Kikuma (JP)

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