Porous calcium silicate as animal litter

Abstract From the Canadian patent

An animal litter is characterised in that it consists of or contains a porous calcium silicate granulate or powder having pore radii of less than 500 µ, preferably less than 100 µ more, particularly less than 60 µ, specifically 10 to 20 µ. The calcium silicate granulate or powder is prepared by reacting crystalline and, if required, amorphous silicon dioxide or materials contain-, ing the same, with calcium oxide or materials containing the same in a CaO to SiO2 molar ratio of 0.8:1-1.1:1 an anion-active, surfactant preferably being used with an active substance content of from 30 to 60%, e.g. 50% to produce a microporous stable foam into which the materials are mixed. The mixture is then …