Patent ID: 7008896
Filing Date: 2006-03-07
Classification: B01J,C01P,C04B,C09C,Y10S

Abstract:
1. A process for the preparation of crystalline anionic clay-containing bodies from sources comprising a trivalent metal source and a divalent metal source comprising the steps of: a) preparing a precursor mixture containing a liquid, at least one of a divalent metal source and a trivalent metal source, at least one of them being insoluble in the liquid; b) shaping the precursor mixture to obtain shaped bodies; and c) aging the shaped bodies to obtain crystalline anionic clay-containing bodies; with the proviso that if either of a divalent or trivalent metal source is not present in the precursor mixture of step a), such source is added to the shaped bodies after shaping step b) and before aging step c); and with the further proviso that the combined use of an aluminium source as the trivalent metal source and a magnesium source as the divalent metal source is excluded.