Ti(SO_4)_2/SiO_2催化合成苯甲酸异戊酯的研究  

Synthesis of isoamyl benzoate catalyzed by Ti(SO_4)_2/SiO_2

作　　者：张富捐[1] 张红宇[1] 盛淑玲[1] 张翔宇[1] 

机构地区：[1]许昌学院化学系,河南许昌461000

出　　处：《工业催化》2004年第11期24-26,共3页Industrial Catalysis

基　　金：河南省科技厅计划项目(0324290010)

摘　　要：以Ti(SO4)2/SiO2为催化剂,苯甲酸和异戊醇为原料,合成了苯甲酸异戊酯。对影响酯化反应的因素进行了研究。优化的工艺条件:负载硫酸钛质量分数为10%,催化剂用量为2 5g·(0 05mol 苯甲酸)-1,醇酸物质的量比为4∶1,反应时间为90min,苯甲酸的酯化率可达96 6%。Isoamyl benzoate was synthesized by esterification of benzoic acid and isoamyl alcohol over Ti(SO_4)_2/SiO_2 catalyst. The influences of various factors were investigated. Optimum reaction condition was obtained as follows: titanium sulfate loading on SiO_2 =10% (mass fraction); m(catalyst)∶ (m(benzoic acid)=)2.5 g∶0.05 mol, n(isoamyl alcohol)∶n(benzoic acid) = 4∶1, reaction time 90 min. Esterification of 96.6% was attained under the optimum condition.

关 键 词：苯甲酸异戊酯 催化酯化 Ti(SO4)2/SiO2 

分 类 号：TQ225.41[化学工程—有机化工] TQ426.94