硫酸氢钠复合催化剂催化合成乙酸正丁酯的研究  

Study on synthesis of n-butyl acetate hexanoate catalyzed by sodium hydrogen sulfate composite catalyst

作　　者：袁旭宏[1] 曾春元 陈红[3] 叶余原[3] 熊双喜[3] 

机构地区：[1]台州职业技术学院生化系,浙江台州318000 [2]浙江奥翔药业有限公司,浙江临海317000 [3]台州学院医药化工学院,浙江台州318000

出　　处：《化学工程师》2014年第11期79-81,共3页Chemical Engineer

摘　　要：NaHSO4和H2SO4能够作为酯化反应的催化剂,本文研究了以乙酸和正丁醇为原料,NaHSO4和浓H2SO4为复合催化剂合成乙酸正丁酯。最佳反应条件为:酸醇摩尔比n(乙酸):n(正丁醇)为1:1.65,催化剂用量为1.65g,复合催化剂中Na HSO4与浓H2SO4之比为1:0.17,反应时间125min,酯化率最高可达97.6%。The sodium bisulfate and concentrated sulfuric acid can be used as a catalyst for esterification. Using acetic acid and n-butyl as raw material, sodium bisulfate and sulfuric acid catalyst for the synthesis of n-butyl acetate compound were studied. The optimum reaction conditions are as follows： acid molar ratio n（acetic acid）∶n（n-butyl）was 1：1.65, the amount of catalyst 1.65 g, Complex catalyst in concentrated sulfuric acid and sodium hydrogen sulfate ratio of 1：0.17, and the reaction time was one hundred and twenty minutes（125min）. Esterification rate can be up to 97.6%.

关 键 词：乙酸正丁酯 合成 复合催化剂 酯化率 

分 类 号：TQ225.24[化学工程—有机化工]