硫酸钙晶须催化合成醋酸正丁酯  

Synthesis of n-Butyl Acetate Catalyzed by Calcium Sulfate Whisker

作　　者：吴桐[1] 于平 

机构地区：[1]克拉玛依职业技术学院,新疆独山子833600 [2]滇虹药业集团股份有限公司,云南昆明650106

出　　处：《当代化工》2014年第9期1715-1717,共3页Contemporary Chemical Industry

摘　　要：以醋酸甲酯和正丁醇的酯交换方式制备醋酸正丁酯,研究硫酸钙晶须在该反应中的催化性能。考察酯醇摩尔比,硫酸钙晶须用量,超声波频率,反应时间及反应温度对产率的影响。结果表明硫酸钙晶须具有一定的催化作用,并且最佳反应条件为:酯醇摩尔比为2,晶须用量为3%(m),超声波频率为25 kHz,反应时间为6 h,反应温度为110℃。在此条件下醋酸正丁酯的产率可达到61%以上。n-Butyl acetate was synthesized by interesterification of methyl acetate with n-butyl alcohol, and the catalytic performance of calcium sulfate whisker in the reaction was studied. Effects of ester alcohol mole ratio, calcium sulfate whisker dosage, ultrasound frequency, reaction time and temperature on the product yield were investigated. The results show that calcium sulfate whisker has certain catalytic activity, and the optimal reaction conditions are as follows： ester/alcohol mole ratio 2, dosage of whisker 3%（m）, ultrasound frequency 25 kHz, reaction time 6 h and reaction temperature 110℃. Under above conditions, the yield of n-butyl acetate can reach above 61%.

关 键 词：硫酸钙晶须 醋酸正丁酯 酯交换 超声波 

分 类 号：TQ225[化学工程—有机化工]