| abstract |
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 1-5 mm, preferably 1-3 mm, and even more preferably 1-2 mm; a crushing strength, or mechanical strength, in the range of 0.75-1 MPa; a relative density of 0.7-0.8; a specific surface area BET of 100-200 m<2>/g; a microporous volume of 0.25-1 cm<3>/g; and a carbon content of 8-11 % by weight, the remainder essentially consisting of a mineral matrix of base nature, comprising an insoluble aluminosilicate crystalline phase. Application especially in the purification of liquids, as a catalyst in oxidation reactions and in the manufacture of composite catalysts, in particular in petrochemistry. |