PREPARATION OF HIGH-SILICA FAUJASITES BY MEANS OF SiCl4.

被引：0

作者：

Mishin, I.V. ^{[1
]}

Baier, G.K. ^{[1
]}

Klyachko, A.L. ^{[1
]}

Ashavskaya, G.A. ^{[1
]}

Nissenbaum, V.D. ^{[1
]}

Borbei, G. ^{[1
]}

机构：

[1] Acad of Sciences of the USSR, Moscow, USSR, Acad of Sciences of the USSR, Moscow, USSR

来源：

Kinetics and Catalysis | 1987年 / 28卷 / 3 pt 2期

关键词：

ALUMINUM AND ALLOYS - Removal - CRYSTALS - Structure - SILICON COMPOUNDS - VAPORS;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The reaction of Y zeolites with SiCl//4 vapor has been studied. A connection has been established between the temperature at which the zeolites are treated with SiCl//4 and the degree of dealumination. It has been shown that up to 95% of the Al can be extracted from the framework by means of SiCl//4 without destroying the crystal structure. Dealumination increases the thermal stability of the framework and the hydroxyl coating of Y zeolites. On reacting with SiCl//4 some of the Al removed from the framework remains in the specimen and forms stable extra-lattice compounds.

引用

页码：615 / 620

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