PARA-SELECTIVITY OF METALLOSILICATES WITH MFI ZEOLITE STRUCTURE

被引：50

作者：

KIM, JH ^{[1
]}

NAMBA, S ^{[1
]}

YASHIMA, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT CHEM,MEGURO KU,OKAYAMA,TOKYO 152,JAPAN

来源：

ZEOLITES | 1991年 / 11卷 / 01期

关键词：

PARA-SELECTIVITY; METALLOSILICATE; ACID STRENGTH; ALKYLATION; ETHYLBENZENE; DIETHYLBENZENE; ZEOLITE ZSM-5; SHAPE SELECTIVITY; HZSM-5; ZEOLITE; ALUMINUM; ZSM-5; ALKYLATION; TOLUENE; XYLENE;

D O I：

10.1016/0144-2449(91)80357-6

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 antimonosilicate, borosilicate, ferrisilicate, and gallosilicate with MFl zeolite structure exhibited much higher para-selectivities for the alkylation of ethylbenzene with ethanol than did HZSM-5 zeolite. The weaker acid sites on the metallosilicates provide the higher para-selectivity, because in the narrow pores the isomerization of the p-diethylbenzene produced primarily is suppressed to some extent through "restricted transition-state selectivity" and requires strong acid sites, compared with the alkylation.

引用

页码：59 / 63

页数：5

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