Synthesis of zeolite ZSM-11

Details Synthesis of zeolite ZSM-11 Synthesis of zeolite ZSM-11

1977-08-01

1978-08-22

Meros, Edward J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252431N, 252455Z, 423328, 423329, C07F 506, C01B 3328

Patent

active

041088816

ABSTRACT:
As synthesized by conventional technique, zeolite ZSM-11 is crystallized in the presence of substantial amount of at least one of the quaternary cations of a Group VA element of the Periodic Table of Elements. When synthesized in the conventional way, ZSM-11 contains said cations as well as substantial amount of sodium ions. To obtain a more catalytically active form of ZSM-11, the sodium ions must be exchanged to very low levels. By synthesizing zeolite ZSM-11 according to the present method, i.e. in the presence of one or more alkylenediamines having from 7 to 12 carbon atoms and with a specifically defined reaction mixture composition, ZSM-11 having different organic cations but the same crystal structure as conventionally prepared ZSM-11 is obtained. The ZSM-11 prepared in accordance hereto is very low in sodium content as synthesized.

REFERENCES:
patent: 3709979 (1973-01-01), Chu
patent: 3804746 (1974-04-01), Chu
patent: 4016245 (1977-04-01), Plank et al.
patent: 4025571 (1977-05-01), Lago
patent: 4046859 (1977-09-01), Plank et al.

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