磷钨酸掺杂聚苯胺催化剂催化合成己二酸二丁酯  

Catalytic synthesis of dibutyl adipate with H_3PW_(12)O_(40)/PAn

作　　者：白爱民[1] 宋作良[1] 吕宝兰[1] 陈芳[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《化学工业与工程技术》2004年第3期4-6,共3页Journal of Chemical Industry & Engineering

基　　金：湖北省教育厅重点科研基金 (No .2 0 0 2A0 0 0 0 8)资助项目

摘　　要：制备了磷钨酸掺杂聚苯胺催化剂 ,应用于己二酸和正丁醇反应 ,合成了己二酸二丁酯 ,探讨了磷钨酸掺杂聚苯胺催化剂对酯化反应的催化活性 ,研究了原料物质的量比、催化剂用量、反应时间诸因素对产品收率的影响。实验表明 ,磷钨酸掺杂聚苯胺催化剂是合成己二酸二丁酯的良好催化剂 ,在n正丁醇∶n己二酸 =4 .0∶1 ,催化剂用量为反应物料总质量的 1 .0 % ,环己烷为带水剂 ,反应时间 2 .0h的优化条件下 ,己二酸二丁酯的收率可达 79.7%。The H_(3)PW_(12)O_(40)/PAn catalyst is syenthesized, and the catalyst is used of the synthesis of dibutyl adipate from butanol and adipic acid. The activity of H_(3)PW_(12)O_(40)/PAn for esterify reaction are discussed. The influences of factors such as the molar ratio of butanol to adipic acid, the dosage of catalyst and the reaction time on the yield are researched. The results show that H_(3)PW_(12)O_(40)/PAn is an excellent catalyst for synthesizing dibutyl adipate. The optimum conditions are: molar ratio of butanol to adipic acid is 4.0:1, the dosage of the catalyst is equal to1.0% of feed stocks, cyclohexane can be used as dehydrater, and the reaction time is 2.0 h. The yield of the product reaches over 79.7% under the optimum conditions.

关 键 词：己二酸二丁酯 磷钨酸 聚苯胺 催化 

分 类 号：TQ22[化学工程—有机化工]