Studies on the crystallization kinetics of zeolite ZSM-5 with 1,6-hexanediol as a structure-directing agent

被引：71

作者：

Falamaki, C ^{[1
]}

Edrissi, M ^{[1
]}

Sohrabi, M ^{[1
]}

机构：

[1] AMIRKABIR UNIV TECHNOL, DEPT CHEM ENGN, TEHRAN, IRAN

来源：

ZEOLITES | 1997年 / 19卷 / 01期

关键词：

ZSM-5; zeolite; nucleation kinetics; autocatalytic nucleation; crystal size distribution;

D O I：

10.1016/S0144-2449(97)00025-0

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 [物理化学]; 081704 [应用化学];

摘要：

Synthesis of ZSM-5 using 1,6-hexanediol as a structure-directing agent has been studied in a vigorously stirred system at 152, 160, and 170 degrees C. Values of the apparent activation energies for the nucleation and growth steps have been calculated. An investigation of the kinetics of nucleation and crystallization processes has been performed. It has been shown that the nucleation rate could be reasonably described by the release of nonuniformly distributed initial nuclei during the crystallization process. The activity of such nuclei was found to be temperature dependent. (C) Elsevier Science Inc. 1997.

引用

页码：2 / 5

页数：4

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