硫酸氢钠催化合成马来酸二丁酯  

Catalytic synthesis of dibutyl maleate by sodium bisulfate

作　　者：刘淑云[1] 俞善信[1] 熊文高[1] 

机构地区：[1]益阳师范高等专科学校化学系,湖南益阳413049

出　　处：《吉林化工学院学报》2001年第1期22-24,共3页Journal of Jilin Institute of Chemical Technology

摘　　要：在水合硫酸氢钠存在下 ,由马来酸酐与正丁醇合成马来酸二丁酯 .当马来酸酐、正丁醇和硫酸氢钠的摩尔比为 1∶6∶0 .145 ,回流分水 90min ,酯收率达 93.4% ,催化剂重复使用 5次 ,活性未发生下降 .Dibutyl maleate is synthesized from maleic anhydride and n butyl alcohol in the presence of sodium bisulfate hydrate(NaHSO 4·H 2O). The yield of the ester can reach 93.4% when mole ratio of maleic anhydride, n-butyl alcohol and sodium bisulfate is 1:6:0.145, and refluxing and water segrating is 90 min. The catalyst can be reused for more than five times without any loss of activity. The catalytic activities of some sulfates in synthesis of butyl maleateare are also compared.

关 键 词：马来酸二丁酯 合成 硫酸氢钠 催化剂 

分 类 号：TQ225.242[化学工程—有机化工] TQ426.94