SYNTHESIS OF ZSM-20 USING CROWN ETHERS

被引:4
|
作者
DWYER, J
KARIM, K
机构
[1] Chemistry Department, UMIST, Manchester, England
来源
ZEOLITES | 1992年 / 12卷 / 04期
关键词
CROWN ETHERS; SYNTHESIS; TEMPLATE; ZSM-20;
D O I
10.1016/0144-2449(92)90038-Q
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent procedures for synthesis of zeolite Y in either cubic or hexagonal forms that make use of crown ethers as template, are modified using gels containing fluorides. 15 Crown-5 ether gives the cubic and 18 crown-6 ether gives the hexagonal form. By using a synthesis mixture in which both templates are present, intergrowths of the two forms can be produced including material analogous to ZSM-20 that is typically synthesized in alkaline systems.
引用
收藏
页码:412 / 414
页数:3
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