Shaped articles of silica gel and porous, amorphous mixed...

Details Shaped articles of silica gel and porous, amorphous mixed... Shaped articles of silica gel and porous, amorphous mixed...

B - Operations, Transporting

01

J

B01J 35/10 (2006.01) B01J 20/06 (2006.01) B01J 20/10 (2006.01) B01J 20/28 (2006.01) B01J 21/08 (2006.01) B01J 37/00 (2006.01) C04B 38/00 (2006.01)

Patent

CA 2375258

The invention relates to shaped articles based on silica gel and/or porous, amorphous mixed oxides. The shaped articles have a specific pore volume of 0.3 to 2.0 ml/g, a BET surface in the range 20 to 800 m2/g and a compression strength of at least 40 N (determined according to the Chatillon method). At least 50% of the total pore volume consists of mesopores with a diameter of <= 50 nm. The invention also relates to processes for the production of shaped articles and the use thereof, as adsorbers or catalyst supports.

L'invention concerne des pièces profilées à base de gel de silice et/ou d'oxydes mélangés amorphes poreux. Ces pièces profilées présentent un volume des pores spécifique qui varie entre 0,3 et 2,0ml/g, une surface BET située entre 20 et 800m2/g, et une résistance à la compression qui atteint au moins 40N (telle que définie selon la méthode de Chatillon). Au moins 50 % du volume des pores total est constitué de mésopores avec un diamètre inférieur ou égal à 50nm. Cette invention concerne également des procédés de production de ces pièces profilées ainsi que l'utilisation de celles-ci, notamment comme adsorbeurs ou supports catalytiques.

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