Synthesis of high activity zsm-48

Details Synthesis of high activity zsm-48 Synthesis of high activity zsm-48

C - Chemistry, Metallurgy

01

B

C01B 33/26 (2006.01) B01J 29/04 (2006.01) B01J 29/06 (2006.01) C01B 39/46 (2006.01) C01B 39/48 (2006.01) C07C 7/00 (2006.01) C10G 73/02 (2006.01)

Patent

CA 2699155

A process for producing ZSM-48 comprises crystallizing an aqueous reaction mixture comprising at least one source of silica, at least one source of alumina, at least one source of hydroxyl ions, at least one source of diquaternary alkylammonium, R2+, ions having the formula: (CH3)3N+(CH2)SN+(CH3)3 and optionally ZSM-48 seed crystals, wherein said reaction mixture has a composition including the following molar ratios: R2+:SiO2 less than 0.1 SiO2:Al2O3 less than 100

L'invention porte sur un procédé de fabrication de ZSM-48. Ce procédé comprend la cristallisation d'un mélange réactionnel aqueux comprenant au moins une source de silice, au moins une source d'alumine, au moins une source d'ions hydroxyle, au moins une source d'ions alkylammonium diquaternaire, R2+, des ions ayant la formule : (CH3)3N+(CH2)5N+(CH3)3 et facultativement des cristaux d'ensemencement de ZSM-48, ledit mélange réactionnel ayant une composition comprenant les rapports molaires suivants : R2+ : SiO2 inférieur à 0,1, SiO2 : Al2O3 inférieur à 100.

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