Supported Heteropolyacids: Sytnhesis, Characterization and Effect of Supports on Esterification Reactions

被引：8

作者：

Brahmkhatri, V. ^{[1
]}

Patel, A. ^{[1
]}

机构：

[1] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Chem, Vadodara, India

来源：

KINETICS AND CATALYSIS | 2010年 / 51卷 / 03期

关键词：

SOLID ACID CATALYSTS; FRIEDEL-CRAFTS ACYLATION; HYDROUS ZIRCONIA; GAMMA-BUTYROLACTONE; ACETIC-ANHYDRIDE; TERT-BUTYLATION; ALKYLATION; SILICA; H3PW12O40; BUTANOL;

D O I：

10.1134/S0023158410030092

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：

12-Tungstophosphoric acid supported onto silica was synthesized by impregnation. The supports and synthesized catalysts were characterized for chemical stability, ion exchange capacity, thermogravimetric analysis, differential scanning calorimetry, FT-TR, and BET surface area. The catalytic activity was evaluated for liquid phase esterification reactions. The catalyst was regenerated and reused. The best catalyst was calcined at different temperatures and its catalytic activity was also evaluated for esterification reactions under optimized conditions. Further, obtained results are compared with 12-tungstophosphoric acid supported onto zirconia in order to see effect of acidic nature of support on catalytic activity as well as thermal stability of the catalyst.

引用

页码：380 / 384

页数：5

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