硫酸氢钠复合催化剂催化合成己酸乙酯的研究  

Study on Synthesis of Ethyl Hexanoate Catalyzed by Sodium Hydrogen Sulfate Composite Catalyst

作　　者：朱鸿飞 张红军 马宁[3] 

机构地区：[1]郑州市建设工程质量检测有限公司,河南郑州450052 [2]河南省产品质量监督检验院,河南郑州450002 [3]华北水利水电学院环境工程实验中心,河南郑州450011

出　　处：《河南化工》2008年第9期23-25,共3页Henan Chemical Industry

摘　　要：利用硫酸氢钠复合催化剂催化合成了己酸乙酯,确定了其最佳反应条件:催化剂用量为每1 mol己酸3 g,醇酸物质的量比为1.5∶1,以环己烷为带水剂,回流反应时间为4 h,己酸的酯化率可达97.38%。实验表明:该催化剂催化效果好,使用量少,酯化率高,环境污染小,后处理工艺缩短了工艺流程,操作简便,有工业应用价值。Use sodium hydrogen sulphate composite catalyst as catalyst on the esterifieation reaction of ethyl hexanoate is studied. The optimal reaction conditions is selected as following：weight of catalyst is 3 g/mol hexanoic acid, the mole ratio of alchol to acid is 1. 5 ： 1, water is removed with cyclohexane and the reaction time is 4 h. The esterification of hexanoic acid is about 97.38%. Experimental results show that sodinm hydrogen sulphate is a good catalyst of this esterification reaction,with the little amount used, the good esterification,little waste discharged. Process is significantly shortened. It is very valuable in practice.

关 键 词：硫酸氢钠 复合催化剂 催化合成 己酸乙酯 

分 类 号：TQ225.24[化学工程—有机化工]