Montmorillonite for selective hydroxyalkylation of p-cresol

被引：13

作者：

Garade, A. C. ^{[1
]}

Mate, V. R. ^{[1
]}

Rode, C. V. ^{[1
]}

机构：

[1] Natl Chem Lab, Chem Engn & Proc Dev Div, Pune 411008, Maharashtra, India

来源：

APPLIED CLAY SCIENCE | 2009年 / 43卷 / 01期

关键词：

Hydroxyalkylation; Solid acids; Ammonia TPD; Montmorillonite; Dihydroxydiarylmethane; PHOSPHOTUNGSTIC ACID; SOLID CATALYST; BISPHENOL-A; CLAY; SILICA;

D O I：

10.1016/j.clay.2008.07.015

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：

Performances of montmorillonite titanium silicate (TS-1) and dodecatungstophosphoric acid (DTP) were compared for the hydroxyalkylation of p-cresol into dihydroxydiarylmethane (DAM). Ammonia TPD studies of various catalysts showed that an appropriate combination of both strong and weak acid sites of montmorillonite was mainly responsible rather than only the stronger acidity of bulk DTP for its highest catalytic activity for selective hydroxyalkylation of p-cresol to DAM. The selectivity to DAM could be enhanced by adjusting reaction conditions like mole ratio of p-cresol to formaldehyde, reaction temperature, catalyst concentration, solvent and reaction time. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：113 / 117

页数：5

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