硅胶负载硅钨酸催化合成丙酸正戊酯  

Catalytic synthesis of n-amyl propionate with H_4SiW_(12)O_(40)/silica gel

作　　者：白爱民[1] 黄凰[1] 赵晶[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《湖北师范学院学报（自然科学版）》2012年第1期76-79,共4页Journal of Hubei Normal University(Natural Science)

基　　金：湖北省自然科学基金资助项目(2010CDB00101)

摘　　要：以硅胶负载硅钨酸(H4SiW12O40/硅胶)为催化剂,以丙酸和正戊醇为原料合成了丙酸正戊酯。研究了该催化酯化反应中丙酸和正戊醇用量之比、催化剂用量变化、带水剂(环己烷)用量、回流反应时间等因素对丙酸正戊酯收率的影响。实验结果显示,在确定的最优条件下,丙酸正戊酯的收率可达84.2%.H4SiW12O40/ silica gel was used as catalyst for the esterification of propionic acid with n-amyl alcohol.The effects of the molar ratio of alcohol to propionic acid,the amount of the catalyst,and the reaction time on synthesizing n-amyl propionate were investigated.A suitable condition for synthesizing n-amyl propionate was obtained,and under this condition,the yield of n-amyl propionate can reach 84.2%.

关 键 词：丙酸正戊酯 硅胶负载硅钨酸 酯化反应 催化 

分 类 号：TQ426.91[化学工程]