THERMAL-ANALYSIS OF TETRAMETHYLAMMONIUM AND TETRAETHYLAMMONIUM ALUMINOSILICATE GELS AND THEIR ZEOLITIC PRODUCTS

被引：12

作者：

TESTA, F

CREA, F

NASTRO, A

AIELLO, R

NAGY, JB

机构：

[1] Dipartimento di Chimica, Université della Calabria, Rende

来源：

ZEOLITES | 1991年 / 11卷 / 07期

关键词：

TETRAMETHYLAMMONIUM; TETRAETHYLAMMONIUM; ZSM-5;

D O I：

10.1016/S0144-2449(05)80176-9

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：

Thermal analysis of the aluminosilicate gels 4.5 Na2O-xTAABr-Al2O3-90 SiO2-3000 H2O (TAA = tetramethylammonium [TMA] or tetraethylammonium [TEA], x = 1, 2, 4, 8) is used to deduce the cationic environments. For TMA systems, crystallization at 190-degrees-C gave ZSM-5, quartz, and ZSM-39 to extents dependent on x, whereas with TEA, the only product was ZSM-5. Thermal analysis distinguished two different anionic environments for the TEA in ZSM-5.

引用

页码：705 / 709

页数：5

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