DEALUMINATION OF Y-ZEOLITES WITH AMMONIUM HEXAFLUOROSILICATE - EFFECT OF WASHING ON THE HYDROTHERMAL STABILITY

被引：23

作者：

WANG, QL

GIANNETTO, G

GUISNET, M

机构：

[1] URA CNRS 350, Catalyse en Chimie Organique, Université de Poitiers, Poitiers

来源：

ZEOLITES | 1990年 / 10卷 / 04期

关键词：

ammonium hexafluorosilicate; Dealumination; stability;

D O I：

10.1016/0144-2449(94)90145-7

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：

The number of washes with boiling water of a Y zeolite dealuminated with ammonium hexafluorosilicate strongly affects its stability under hydrothermal conditions. Traces of hexafluorosilicate, difficult to eliminate completely through washing, would be responsible for this effect. Hydrothermal treatments of mixtures of NH4NaY zeolite and of ammonium hexafluorosilicate (0.2-2 wt%) allow confirmation of this point. © 1990.

引用

页码：301 / 303

页数：3

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