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AssigneePeignage Amedee
InventorBernard Leman
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The porous granular material according to the invention comprises carbon, silica, water-soluble mineral salts and water-insoluble mineral salts, does not disintegrate in the presence of water and has a particle size of approximately 1 to 5 mm, preferably from 1 to 3 mm, in particular from 1 to 2 mm; a crushing strength, or mechanical strength, in the range of 0.75 to 1 MPa; a density of between 0.7 and 0.8; a BET specific surface area of between 100 and 200 m.sup.2 /g; a microporous volume of between 0.25 and 1 cm.sup.3 /g; and a carbon content of 8 to 11 weight %, the balance being essentially made up by a mineral matrix of base nature, comprising a crystalline phase of insoluble aluminosilicates. Application, in particular, to the purification of liquids, as a catalyst in oxidation reactions and in the manufacture of composite catalysts, in particular in petrochemistry.
A porous, granular material comprising carbon, and silicon, oxygen, sodium, potassium, magnesium, calcium, aluminum and iron combined at least partially in the form of silica, of water-soluble Silicate mineral salts and of water-insoluble aluminosilicate mineral salts, said mineral salts being present in a mineral matrix which, in the presence of water, has the properties of a base, which granular material does not disintegrate in the presence of water and has:
Dependencies are inferred from the claim text.