Process for the preparation of crystalline silicates,...

Details Process for the preparation of crystalline silicates,... Process for the preparation of crystalline silicates,...

C - Chemistry, Metallurgy

07

C

23/186, 260/688.

C07C 1/04 (2006.01) B01J 29/40 (2006.01) B01J 31/02 (2006.01) C01B 39/40 (2006.01)

Patent

CA 1153867

ABSTRACT Process for the preparation of ZSM-5 type crystalline aluminum silicates. An aqueous mixture containing a compound of an alkali metal (m), a quarternary alkyl ammonium compound (R4Mx), a silicon compound that after drying at 120°C and calcination at 500°C yields a product with an SiC2 content of more than 90% by weight, and an aluminum compound in which mixture the various compounds are present in the specific molar ratios, is maintained at elevated temperature until the crystalline silicate is formed which is separated, dried and calcined.

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