Alkylation of phenol with tert-butyl alcohol catalysed by zeolite Hβ

被引：102

作者：

Zhang, K ^{[1
]}

Huang, CH ^{[1
]}

Zhang, HB ^{[1
]}

Xiang, SH ^{[1
]}

Liu, SY ^{[1
]}

Xu, D ^{[1
]}

Li, HX ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 1998年 / 166卷 / 01期

关键词：

phenol; alkylation; zeolite H beta; tert-butylalcohol; selectivity; o-tert-butyl phenol; p-tert-butyl phenol; 2,4-di-tert-phenol;

D O I：

10.1016/S0926-860X(97)00244-5

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 catalytic properties of zeolite beta in the tert-butylation of phenol are reported. The influence of various reaction parameters such as temperature, space velocity, molar ratio of the reactants are discussed. Medium acid sites on zeolite H beta are advantageous in producing p-TBP, and that of strong acid sites are helpful for the formation of 2,4-DTBP, while weak acid sites are effective in producing o-TBP. In order to enhance the selectivity of p-TBF, a proper reaction temperature (418 K), lower reactant ratio (molar ratio) and moderate acidities on zeolite H beta are recommended. On the basis of the behaviour obtained in the cases mentioned, information about the reaction path models is provided. (C) 1998 Elsevier Science B.V.

引用

页码：89 / 95

页数：7

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