Heteropoly acid intercalated Zn/Al HTlc as efficient catalyst for esteritication of acetic acid using n-butanol

被引：71

作者：

Das, J. ^{[1
]}

Parida, K. M. ^{[1
]}

机构：

[1] CSIR, Reg Res Lab, Bhubaneswar 751013, Orissa, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2007年 / 264卷 / 1-2期

关键词：

hydrotalcite-like-compounds; heteropoly acid; esterification; acetic acid; n-butanol;

D O I：

10.1016/j.molcata.2006.09.033

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：

Heteropoly acids (molybdophosphoric acid and tungstophosphoric acid) of different wt.% (5-20 wt.%) were intercalated in Zn-Al hydrotalcite-like-compounds by indirect intercalation via terephthalate route and the materials were characterized by PXRD, FTIR, BET, acid sites, etc. PXRD reveals intercalation of MPA and TPA species, which is further corroborated by the presence of these Keggin ions by FTIR. The catalytic activity of the prepared catalysts was tested for the liquid phase esterification of acetic acid. using n-butanol under autogenous condition. The effect of various reaction parameters such as molar ratio of the reactants, temperature, time and catalyst dose, etc. on the conversion of acetic acid was studied and the findings are discussed. The 15 wt.% MPA intercalated sample shows highest conversion (84.15%) with 100% selectivity for n-butyl acetate. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：248 / 254

页数：7

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