Process for preparation of supports

Details Process for preparation of supports Process for preparation of supports

B - Operations, Transporting

01

J

B01J 37/02 (2006.01) B01J 20/32 (2006.01) B01J 35/04 (2006.01) C01B 3/38 (2006.01) C01B 3/40 (2006.01)

Patent

CA 2205178

Process for the preparation of a ceramic foam supporting one or more inorganic oxide(s) comprising impregnation of the foam with an impregnating phase comprising the inorganic oxide(s) precursor in an impregnating medium and drying wherein the impregnating phase has a viscosity greater than 1 cps at 20 ·C, preferably of from 5 to 80 cps, more preferably of from 7 to 50 cps and wherein drying is performed without substantial prior draining of impregnating phase from the ceramic foam, and use of the ceramic foams of the invention as catalytic support in a catalytic conversion process.

Ce procédé de préparation d'une mousse céramique supportant un ou plusieurs oxyde(s) inorganique(s), consiste à imprégner la mousse d'une phase d'imprégnation comprenant le précurseur de (des) oxyde(s) inorganique(s) dans un milieu d'imprégnation, puis à sécher cette mousse, la phase d'imprégnation étant caractérisée en ce qu'elle possède une viscosité supérieure à 1 cps à 20 ~C, de préférence comprise entre 5 et 80 cps et idéalement comprise entre 7 et 50 cps, et le séchage étant effectué sans pratiquement d'égouttage préalable de la phase d'imprégnation à partir de la mousse céramique. On décrit également l'utilisation des mousses céramiques de l'invention en tant que support catalytique dans un processus de conversion catalytique.

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