新型固体超强酸催化合成苯乙酸乙酯  

The Catalytic Synthesis of Ethyl Phenylacetate by SO_4^(2-)/ZrO_2/La^(3+) Rare/earth Solid Superacid

作　　者：刘秋燕 孙晓慧[2] 刘醒民[2] 郭俊文[2] 

机构地区：[1]内蒙古纺织技工学校,内蒙古呼和浩特市010020 [2]内蒙古工业大学化工学院,内蒙古呼和浩特市010062

出　　处：《内蒙古石油化工》2003年第1期17-19,共3页Inner Mongolia Petrochemical Industry

摘　　要：以稀土固体超强酸SO42 - /ZrO2 /La3+为催化剂 ,苯乙酸和乙醇为原料合成苯乙酸乙酯 ,考察了影响反应的因素。如果表明 :n(醇 )∶n(酸 ) =3 .5∶1 .0 ;催化剂用量为 1 0 g(苯乙酸为 0 0 5mol的情况下 ) ;反应时间为 4 5h是最适宜的反应条件。酯化率达 90 0 %。The synthesis of ethyl phenylacetate with ethanol and phenylacetic acid as reactants and rare-earth solid superacid SO_4 2-/ ZrO_2/ La 3+ as catalyst was studied. The influence factors were investigated. The results showed that the appropriate conditions were as follow; mass of catalyst 1.0g(based on 0.05 mole phenylacetic acid), n(ethanol):n(phentlacetic acid)=3.5:1, reaction time 4.5h. The yield of ethyl phenylacetate was about 90.0%.

关 键 词：催化合成 苯乙酸乙酯 稀土固体超强酸 新型 

分 类 号：TQ245.24[化学工程—有机化工] TQ426.99