Ti(SO_4)_2催化合成苯甲酸异戊酯绿色新工艺  

A new green technology:synthesis of isoamyl benzoate catalyzed by titanium sulphate

作　　者：邓斌[1] 李强国[1] 胡正水[2] 

机构地区：[1]郴州师范高等专科学校化学系,湖南郴州423000 [2]青岛科技大学应用化学系,山东青岛266042

出　　处：《宝鸡文理学院学报（自然科学版）》2003年第1期30-32,共3页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：湖南省教育厅资助项目(00C001)

摘　　要：研究了应用Ti(SO4)2催化合成苯甲酸异戊酯的绿色新工艺,结果表明,Ti(SO4)2在该反应中具有很好的催化性能,并得到了合成苯甲酸异戊酯的新工艺条件是:催化剂用量为苯甲酸质量的10.0%;醇酸摩尔比为3∶1;反应在回流温度下进行3h,苯甲酸的酯化率可达98.85%,纯度在99.0%以上。A new green technology--catalytic synthesis of isoamyl benzoate with Ti(SO4)2 as catalyst is studied. The results show that Ti(SO4)2 has good catalytic performance in the esterification.The optimun condition of the new technology for synthesis isoamyl benzoate is obtained as follows:the catalyst is 10.0% of benzoic acid.the mole ratio of isoamyl alcohol to benzoic acid is 3∶1,the reaction time is 3 hours and reaction temperature is 132 ℃.Under the optimum conditions the yield and purity of esters are above 98.0% and 99.0% respectively.

关 键 词：Ti(SO4)2催化剂 苯甲酸异戊酯 催化酯化反应 绿色新工艺 合成工艺 合成香料 

分 类 号：TQ655[化学工程—精细化工]