Alkylation of hydroquinone with tert-butanol over AlSBA-15 mesoporous molecular sieves

被引：19

作者：

Xu, BJ

Hua, WM ^{[1
]}

Yue, YH

Tang, Y

Gao, Z

机构：

[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

来源：

CATALYSIS LETTERS | 2005年 / 100卷 / 1-2期

关键词：

2-tert-butylhydroquinone; 2,5-di-tert-butylhydroquinone; alkylation; mesoporous molecular sieve; AlSBA-15; acidity;

D O I：

10.1007/s10562-004-3092-y

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：

A series of AlSBA-15 catalysts with different pore size and different Si/Al ratio were prepared and characterized by N-2 adsorption and NH3-temperature programmed desorption (NH3-TPD) methods. Their catalytic behaviors for the alkylation of hydroquinone with tert-butanol were studied and compared with that of HZSM-5, HY, HAlMCM-41. It is found that the catalytic activity correlates well with the amount of medium-strong acid sites on the surface of the catalysts, and the selectivity towards 2-tert-Butylhydroquinone has some connection with the pore size of the catalysts. The reusability of the catalyst depends on its hydrothermal stability, which needs to be improved for the AlSBA-15 catalysts.

引用

页码：95 / 100

页数：6

共 15 条

[1]

FUJIITA KT, Patent No. 03169832

[2] SILICA-GEL AS AN EFFECTIVE CATALYST FOR THE ALKYLATION OF PHENOLS AND SOME HETEROCYCLIC AROMATIC-COMPOUNDS [J].