Lewis固体酸催化合成乙酸乙酯的研究  

Study on synthesis of ethyl acetate over Lewis solid acid catalyst

作　　者：杨亚婷[1] 赵维[1] 刘静[1] 郭乃妮[1] 

机构地区：[1]咸阳师范学院化学系,陕西咸阳712000

出　　处：《应用化工》2003年第6期23-24,共2页Applied Chemical Industry

基　　金：咸阳师范学院自然科学基金资助项目(02XSYK208)

摘　　要：以Lewis固体酸为催化剂,以冰乙酸和无水乙醇为原料合成乙酸乙酯。考察了4种Lewis固体酸(三氯化铁、无水三氯化铝、三氯化锑和四氯化锡)及不同用量条件下对酯化产率的影响。结果表明,较佳的工艺条件为:冰乙酸6ml(0.1mol),无水乙醇9.5ml(0.2mol),80～90℃回流反应1h,三氯化铝和三氯化铁的酯化率分别可达92.0%和91.0%。Ethyl acetate is synthesized from glacial acetic acid and absolute alcohol in the presence of Lewis solid acid catalyst.The influences of the four kinds of Lewis solid acid(ferric chloride, aluminium chloride anhydrous,antimony chloride and stannic tetrachloride) and their dosage on esterification rate are tested.The results showed that the glacial acetic acid 6 ml(0.1 mol),ethyl alcohol 9.5 ml (0.2 mol),the reaction in a state of reflux at 80～90 ℃ for 1.0 h,the esterification rates of aluminium chloride and ferric chloride were reached 92% and 91%, respectively.

关 键 词：乙酸乙酯 LEWIS酸 催化酯化 

分 类 号：O621.36[理学—有机化学]