固体超强酸S_2O_8^(2-)/TiO_2催化合成乙酸己酯  

Synthesis of hexyl acetate catalyzed by solid superacid S_2O_8^(2-)/TiO_2

作　　者：吴长增[1] 宋晓平[1] 

机构地区：[1]许昌学院化学系,河南许昌461000

出　　处：《应用化工》2002年第4期10-12,共3页Applied Chemical Industry

基　　金：河南省高校青年骨干教师资助计划项目1 89

摘　　要：以固体超强酸S2 O2 - 8/TiO2 为催化剂合成了乙酸己酯 ,考察了催化剂制备条件对催化活性的影响以及酸醇摩尔比、催化剂用量、反应时间对酯化率的影响。最佳反应条件为 :酸醇摩尔比 0 2 0∶0 2 4 ,催化剂用量0 6g ,反应时间 2h ,带水剂苯 1 0ml ,反应温度 1 0 0℃～ 1 1 0℃ ,酯化率可达 96 %以上。Hexyl acetate was synthesized by the new type solid superacid S 2O 2- 8 /TiO 2. The effects of preparation conditions of catalyst on catalytic activity and the effects of acid/alcohol molar ratio,amount of catalyst S 2O 2- 8 /TiO 2,and reaction time on the esterification conversion were studied.The optimum condition is :acid/alcohol molar ratio 0.20 ∶ 0.24 ,the amount of catalyst 0.6 g ,reaction time 2 h,the amount of dehydrater benzne 10 ml,reaction temperaure 100 ℃～110 ℃?The esterification conversion was over 96% under the optimum coditions

关 键 词：固体超强酸 S2O8^2-/TiO2 催化合成 乙酸己酯 酯化 

分 类 号：TQ225.241[化学工程—有机化工]