STABILITY OF THE TETRAHEDRAL ALUMINUM SITES IN ZEOLITE-BETA

被引：22

作者：

BOURGEAT-LAMI, E

MASSIANI, P

DIRENZO, F

FAJULA, F

DESCOURIERES, T

机构：

[1] ECOLE NAT SUPER CHIM, CHIM ORGAN PHYS & CINET CHIM APPL LAB,CNRS, UNITE 418,8 RUE ECOLE NORMALE, F-34053 MONTPELLIER 1, FRANCE

[2] CTR RECH ELF FRANCE, F-69360 ST SYMPHORIEN DOZON, FRANCE

来源：

CATALYSIS LETTERS | 1990年 / 5卷 / 03期

关键词：

acid catalysts; De-alumination; FTIR; MASNMR; re-alumination;

D O I：

10.1007/BF00764671

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：

Calcination of as-synthesized or ammonium-exchanged forms of zeolite BETA induces an extensive loss of framework aluminium evidenced by27Al MAS NMR, XRD and FTIR spectroscopies. Treatment of the calcined solids in ammonium nitrate restores the tetrahedral Al sites. Material balances show that the latter process is quantitative. © 1990 J.C. Baltzer A.G. Scientific Publishing Company.

引用

页码：265 / 272

页数：8

共 13 条

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WOOD, JD
KERR, GT
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[10] ACTIVATION OF ZEOLITE-OMEGA .1. PHYSICOCHEMICAL CHARACTERIZATION OF CALCINED AND SELF-STEAMED SAMPLES
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CHAUVIN, B
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FIGUERAS, F
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[J]. APPLIED CATALYSIS, 1988, 42 (01): : 105 - 120

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