Aluminosilicate catalyst for preparation propylene via methanol

Details Aluminosilicate catalyst for preparation propylene via methanol Aluminosilicate catalyst for preparation propylene via methanol

C - Chemistry, Metallurgy

01

B

C01B 39/36 (2006.01) B01J 29/06 (2006.01) C01B 39/02 (2006.01) C07C 1/20 (2006.01)

Patent

CA 2622455

A process for the preparation of P-HZSM-5 for methanol conversion to light olefins especially propylene, with utilizing a tetraalkylphosphonium salt, is disclosed. The catalyst based on crystalline aluminosilicates of the pentasil type, having an SiO2/A12O3 molar ratio at least 280, the BET surface area from 300 to 400 m2/g, total pore volume at least 0.15 and at most 0.4 cm3/g, the average pore diameter at least 2 and at most 20 nm and mean crystallites size at least 1 and at most 11 µm.

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