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Title:
HEAT INSULATING REFRACTORY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2012/008352
Kind Code:
A1
Abstract:
This heat-insulating refractory is characterized by being formed from an alumina or zirconia ceramic, containing no or 1% by weight or less of silica, and having a porosity of 65-85% and a compressive strength of 2 MPa. This heat-insulating refractory is preferably produced by: obtaining a molded body by press molding a kneaded material, which is obtained by kneading alumina particles or zirconia particles, a water-soluble polymer material, a polysaccharide, pore-forming particles that can be eliminated by firing and a liquid medium, with a pressure at which the pore-forming particles are not broken; and then firing the molded body under such conditions where the pore-forming particles are eliminated.

Inventors:
TSUYAMA TATSUMI (JP)
KOGA KEN-ICHIRO (JP)
UCHIDA TATSUHIKO (JP)
WATANABE KOJI (JP)
MURASHIMA MITSUNORI (JP)
Application Number:
PCT/JP2011/065567
Publication Date:
January 19, 2012
Filing Date:
July 07, 2011
Export Citation:
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Assignee:
MITSUI MINING & SMELTING CO (JP)
TSUYAMA TATSUMI (JP)
KOGA KEN-ICHIRO (JP)
UCHIDA TATSUHIKO (JP)
WATANABE KOJI (JP)
MURASHIMA MITSUNORI (JP)
International Classes:
C04B38/06; C04B35/101; C04B35/48; C04B38/00; F27D1/00; F27D1/04
Foreign References:
JP2004250307A2004-09-09
JPS63270368A1988-11-08
JP2002068854A2002-03-08
JPH03223184A1991-10-02
JP2003073180A2003-03-12
JP2006342054A2006-12-21
JP2006327927A2006-12-07
JPH0383858A1991-04-09
JPH10152327A1998-06-09
JPH0513158A1993-01-22
JPS63125148U1988-08-16
JP2007076984A2007-03-29
Attorney, Agent or Firm:
HATORI, Osamu (JP)
Osamu Hatori (JP)
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