杂多酸(盐)催化合成丙烯酸正丁酯的研究  

Synthesis of Butyl Acrylate Catalyzed by Heteropoly Acids (Salts)

作　　者：吴茂祥[1] 罗军华[1] 李定[1] 高冬寿[1] 马锦波[1] 王燕茗[1] 陈长章[1] 

机构地区：[1]中国科学院福建物质结构研究所应用化学研究室,福建福州350002

出　　处：《精细化工》1999年第6期32-34,共3页Fine Chemicals

基　　金：福建省自然科学基金;中国科学院福建物质结构研究所发展基金

摘　　要：对杂多酸（ 盐） 均相、非均相和固载型催化剂催化丙烯酸和正丁醇反应合成丙烯酸正丁酯进行了研究。实验结果表明：丙烯酸０－５ｍｏｌ、正丁醇０－５５ｍｏｌ、催化剂用量为丙烯酸质量的１－２％ 、反应温度为１３０℃时，丙烯酸的转化率和酯化反应的选择性都在９６％ 以上。非均相和固载型杂多酸（ 盐） 催化剂均可多次使用而活性没有明显下降。Heteropoly acids(salts) catalyzed esterification between acrylic acid and n butyl alcohol was studied.A number of homogeneous,heterogeneous and supported catalysts with high activity and selectivity were selected.The effects of reaction conditions on the results were investigated.Under the following conditions:acrylic acid 0.5mol,n butyl alcohol 0 55mol,catalyst 1 2%(w),reaction temperature 130℃,the conversion of the acrylic acid was over 96%,the selectivity for butyl acrylate was over 96%.The heterogeneous and supported catalysts could be used for several times without distinct decrease in activity.

关 键 词：杂多酸盐 丙烯酸正丁酯 酯化 催化 

分 类 号：O623.624.1[理学—有机化学] TQ225.241[理学—化学]