Patent ID: 7341973
Filing Date: 2008-03-11
Classification: B01J,C07C

Abstract:
1. Solid base catalysts consisting of an amorphous material obtained from a silica gel comprising an alkaline or earth-alkaline metal (M), or alumina gel comprising an alkaline, earth-alkaline or transition metal (M), wherein a molar ratio between metal (M) and Si or Al ranging from 30:1 to 0.0001:1, and wherein said amorphous material has a surface area ranging from 100 to 600 m 2 /g, an overall pore volume ranging from 0.1 to 1.1 ml/g, an average channel diameter ranging from 30 to 150 Å, and a density of the base sites ranging from 10 to 900 μmol/g.