Highly porous ceramic material for absorption and adsorption pur

Details Highly porous ceramic material for absorption and adsorption pur Highly porous ceramic material for absorption and adsorption pur

1990-02-01

1991-07-16

Group, Karl

Compositions: ceramic

Ceramic compositions

Pore-forming

501141, 501144, 119173, 502407, C04B 3800

Patent

active

050325493

ABSTRACT:
Highly porous ceramic material for adsorption and absorption purposes, particularly for animal litter, characterized by a porosity of 50 to 300%, preferably 200 to 250%; a water absorption capacity of 50 to 200%, preferably 100 to 150%; a pH-value in the range 5 to 9, preferably 7 to 8; a bulk density of 400 to 700 g/l; an internal surface (BET-N.sub.2) between 20 and 200 m.sup.2 /g, preferably between 80 and 150 m.sup.2 /g; which can be produced by firing a foamed mixture of clay or clays, optionally aggregate or aggregates, anionic or cationic surfactant or surfactants and deflocculant or deflocculants, process for the production thereof and use thereof.

REFERENCES:
patent: 1998686 (1935-04-01), Parsons
patent: 2543987 (1951-03-01), Ramsay
patent: 3993498 (1976-11-01), Koekemoer
patent: 4275684 (1981-06-01), Kramer et al.
patent: 4318996 (1982-03-01), Magder
patent: 4341561 (1982-07-01), Britt et al.
patent: 4356271 (1982-10-01), Francis et al.
patent: 4424280 (1984-01-01), Malric

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