CORROSION-RESISTANT HIGH-STRENGTH REFRACTORY, ITS PRODUCTION AND LIFTER FOR KILN COMPRISING THE REFRACTORY

Japanese Patent JP3896494

B2

PROBLEM TO BE SOLVED: To provide lifters capable of obtaining a sufficiently stirring effect for many hours, to obtain a corrosion-resistant high-strength refractory used for the lifters and to provide a method for producing the refractory.
SOLUTION: This method for producing a corrosion-resistant high-strength refractory comprises baking a refractory composed of Al2O3 as a main component and containing ≥3% and ≤20% Cr2O3 by weight ratio in Cr2O3 powder at ≥1,400°C to form a corrosion-resistant layer having a high Cr2O3 concentration on the surface. This corrosion-resistant high-strength refractory having a high Cr2O3 concentration on the surface is produced by the method. The lifters are installed on a furnace wall refractory in the vicinity of an inlet part of a kiln and are constituted of the refractory.

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Atsushi Yano
Kenji Kato

JP23224599A

March 22, 2007

August 19, 1999

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Hitachi Zosen Corporation

C04B41/87; C04B35/101; C04B35/64; C04B41/50; C04B41/80; F23G5/44; F27B7/28; F27D1/00; (IPC1-7): C04B41/87; C04B35/101; C04B35/64; C04B41/80; F23G5/44; F27B7/28; F27D1/00

JP58049675A
JP63030363A
JP54043909A

Einosuke Kishimoto
Moriichi Kishimoto
Akira Watanabe
Norihiko Hibi
Kiyosue Yasuko

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