聊城大学学报(自然科学版)2016,Vol.29Issue(1):28-32,5.
Z rO2负载磷钨钒酸铯催化合成乙酸乙酯
Synthesis of EthyI Acetate CataIytic by ZrO2 Supported Cesium SaIt of Phosphorus Tungsten Vanadium Acid
摘要
Abstract
Zirconium dioxide supported cesium salt of phosphorus tungsten vanadium acid (CsH4 PW10 V2 O40/ZrO2 ) was prepared by impregnation ,and characterized by X‐ray diffraction(XRD) , IR spectra ,the physical adsorption (BET ) and potentiometric titration method .Results indicated that the supported catalyst still maintained a typical Keggin structure ,with strong acidity ,and the specific surface area was also significantly improved .The catalyst exhibited good catalytic performance and sta‐bility in the esterification of acetic acid and ethanol .T hese reaction conditions have obvious influence on the reaction ,w hich including the amount of catalyst ,reaction time and the molar ratio of ethanol to acid .And 93 .9% yield was reached under the optimal condition .After reaction ,the catalyst can be re‐used only through filtration .关键词
二氧化锆/负载/Keggin结构/酯化Key words
ZrO2/supported/Keggin structure/esterification分类
化学化工引用本文复制引用
王红红,鞠凤丽,刘丽君,顾婷婷,崔庆新..Z rO2负载磷钨钒酸铯催化合成乙酸乙酯[J].聊城大学学报(自然科学版),2016,29(1):28-32,5.基金项目
国家自然科学基金项目(21101086);聊城大学大学生科技文化创新基金(S F2014065)资助 ()