Highly porous ceramic materials for ad- or absorption...

Details Highly porous ceramic materials for ad- or absorption... Highly porous ceramic materials for ad- or absorption...

C - Chemistry, Metallurgy

04

B

261/2, 252/33, 3

C04B 38/10 (2006.01) H01C 10/36 (2006.01) H01H 25/06 (2006.01)

Patent

CA 1247147

ABSTRACT The invention provides highly porous ceramic materials for ad- or absorption purposes, more particularly for animal litter, characterized by a porosity of 50 to 300 vol. per cent, preferably 200 to 250 vol. per cent; a water-absorbing capacity of 50 to 200, preferably 100 to 150%, a pH value of between 5 and 9, preferably between 7 and 8, a bulk-density of 400 to 700 g/l; an internal surface (BET (N2)) of between 20 and 200, preferably between 80 and 150 m2/g, the material being produced by firing a foamed mixture of clay(s), if necessary additive(s), anionic or cationic surfactant(s), and deflocculating agent(s); the invention also provides methods for their production.

477525

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