Controlled porosity silica and process to prepare it

Details Controlled porosity silica and process to prepare it Controlled porosity silica and process to prepare it

C - Chemistry, Metallurgy

01

B

23/192

C01B 33/193 (2006.01) C01B 33/158 (2006.01)

Patent

CA 2020131

L'invention concerne une silice précipitée à porosité contrôlée ainsi que son procédé d'obtention. La silice de l'invention présente les caractéristiques suivantes: surface spécifique B.E.T. comprise entre 20 à 300 m2/g; surface spécifique C.T.A.B. comprise entre 10 et 200 m2/g: prise d'huile (DBP) comprise entre 80 et 400 cm3/100 g: volume poreux de 1 a 10 cm3/g et diamètre moyen de pores variant entre 10 nm et 50 nm. Cette silice présente un volume poreux otpimisé, lui donnant une capacité d'absorption et une surface d'absorption maximale.

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