纳米固载杂多酸催化合成癸酸异戊酯  

Catalytic Synthesis of Capric acid isoamyl ester by Nanometer Complex Heteropoly acid

作　　者：王敏[1] 张富捐[2] 

机构地区：[1]郑州大学化学系,河南郑州450052 [2]许昌学院化学化工学院,河南许昌461000

出　　处：《河北化工》2012年第1期36-38,共3页Hebei Chemical Industry

基　　金：河南省教育厅自然科学基础研究项目(2007150037)

摘　　要：采用溶胶-凝胶法制备纳米固载杂多酸催化剂H4SiW12O40/SiO2。以癸酸和异戊醇为原料,催化合成癸酸异戊酯。考察了影响酯化率的各种因素,确定了适宜的工艺条件:酸醇物质的量比为1∶1.6,催化剂用量为反应物料总质量的3%,环己烷用量为8 mL,反应时间为60 min,酯化率可达96.70%。Nanometer complex heteropoly acid （H4SiW,2040/SiO2） was prepared by the sol-gel method.Catalytic synthesis of capric acid isoamyl ester from capric acid and isoamyl alcohol.Inspected the influence esteriflcation rate factor, the opti- mum conditions was that molar ratio of capric acid to isoamyl alcohol was 1 ： 1.6,the mass fraction of catalyst in the reac- tion medium was 3%,cyclohexane amount was 8 mL,and the reaction time was 60 min,the esterification rate was 96.70%.

关 键 词：纳米固载杂多酸 溶胶-凝胶法 癸酸异戊酯 催化合成 

分 类 号：O643.36[理学—物理化学] O623.624.1[理学—化学]