Patent ID: 7244688
Filing Date: 2007-07-17
Classification: B01J,H01M,Y02E

Abstract:
1. A process for preparing catalysts comprising monometal oxide particles or multimetal oxide particles, said particles having particle diameters of from 1 to 3 nm and being immobilized on a support, said process comprising the steps of: a) hydrolyzing and condensing or cocondensing in a basic aqueous solution a metal salt or a mixture of a plurality of metal salts to yield a solution comprising water-soluble monometal oxide or multimetal oxide colloid stabilized by hydroxide ions, wherein the metal(s) of said metal salt or said plurality of metal salts is(are) selected from the group consisting of metals of transition groups IIIb, IVb, Vb, VIb, VIIb, VIII, Ib or IIb of the Periodic Table of Elements, and b) immobilizing the resulting water-soluble monometal oxide or multimetal oxide colloid stabilized by hydroxide ions in situ on a support which is additionally present in suspension in the solution.