Patent ID: 7022304
Filing Date: 2006-04-04
Classification: B01J,C01B,C01F,C01P,C04B,C09C

Abstract:
1. A process for the preparation of doped anionic clay wherein a trivalent metal source is reacted with a divalent metal source, at least one of the metal sources being doped boehmite, doped MgO or doped brucite, having dopant incorporated and dispersed homogeneously therein to obtain a doped anionic clay, said doped boehmite being prepared by converting a boehmite precursor and a dopant to a boehmite containing the dopant in a homogeneously dispersed state, said doped MgO or doped brucite being prepared by adding a dopant to a MgO or brucite precursor in aqueous suspension and thermally treating the resulting mixture.