Ceramic porous bodies

C - Chemistry – Metallurgy – 22 – B

Patent

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Details

39/104, 261/3

C22B 9/02 (2006.01) B01D 39/20 (2006.01) C04B 38/06 (2006.01)

Patent

CA 1120066

Abstract of the Disclosure A ceramic porous body useful as a filtering material for molten metal is disclosed. The ceramic porous body is formed by covering surfaces of cell strands of a ceramic porous body skeleton having a bulk specific gravity of 0.25-0.55 with 3-40% by weight per the weight of the skeleton of an activated alumina layer and has an average diameter of interconnected voids of 0.3-5.0 mm, a pressure loss of 0.3-30.0 mm as a water-gauge pressure when passing air through the body of 1 cm thick at a rate of 1 m/sec., a microsurface area of not less than 10 m2/g and a porosity of 75-95%.

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