Title:
MONOTHILIC REFRACTORY COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2003/095391
Kind Code:
A1
Abstract:
A monothilic refractory composition which comprises (1) a spinel material comprising a MgO−Al2O3 spinel phase and&sol or a MgO−Al2O3 spinel−corundam material comprising a MgO−Al2O3 spinel phase and a MgO−Al2O3 corundam phase, both materials containing 2 to 20 wt % of magnesia, in an amount of 20 to 70 wt %, (2) a magnesia material having a particle diameter of 0.3 mm or less and containing 55 to 85 wt % of particles having a particle size of 75 μm or less and having a magnesia content of 90 wt % or more in an amount of 3 to 12 wt %, (3) an alumina cement having a calcia content of less than 20 wt % in an amount of 3 to 10 wt %, (4) an ultra fine powder containing silica as a primary component in an amount of 0.3 to 1.5 wt %, and (5) an alumina material in the balanced amount. The monothilic refractory composition has high heat resistance and also exhibits improved resistance to corrosion and the permeation of slag.
Inventors:
KANESHIGE TOSHIHIKO (JP)
SASAKI HISAHARU (JP)
TABUCHI YUKIHARU (JP)
SASAKI HISAHARU (JP)
TABUCHI YUKIHARU (JP)
Application Number:
PCT/JP2002/004453
Publication Date:
November 20, 2003
Filing Date:
May 08, 2002
Export Citation:
Assignee:
SHINAGAWA REFRACTORIES CO (JP)
KANESHIGE TOSHIHIKO (JP)
SASAKI HISAHARU (JP)
TABUCHI YUKIHARU (JP)
KANESHIGE TOSHIHIKO (JP)
SASAKI HISAHARU (JP)
TABUCHI YUKIHARU (JP)
International Classes:
C04B35/443; C04B35/66; F27D1/00; F27D1/16; (IPC1-7): C04B35/66
Foreign References:
| JPH11310471A | 1999-11-09 |
Attorney, Agent or Firm:
Miyakoshi, Noriaki (29th Floor ARK Mori Building, 12-32, Akasaka 1-chom, Minato-ku Tokyo, JP)
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