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US4804800A Process for synthesizing a zeolite catalyst on a pH controlled basis to improve catalyst life 失效
在pH控制的基础上合成沸石催化剂以提高催化剂寿命的方法

Process for synthesizing a zeolite catalyst on a pH controlled basis to
improve catalyst life
摘要:
A process for preparing a zeolite, e.g. ZSM-5, under controlled conditions of initial pH adjustment with an acid, SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio, and in the presence of sodium cations, is disclosed, as well as a process for using the same to synthesize olefins from methanol and/or dimethyl ether.
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