SO_4^(2-)/ZrO_2-TiO_2固体酸催化剂催化合成苹果酯  

Catalytic Synthesis of Fructone by Solid Acid SO_4^(2-)/ZrO_2-TiO_2

作　　者：刘西成[1] 

机构地区：[1]曲阜师范大学化学与化工学院,山东曲阜273165

出　　处：《广州化工》2011年第9期96-97,共2页GuangZhou Chemical Industry

摘　　要：采用共沉淀法制备了SO42-/ZrO2-TiO2固体酸催化剂,通过乙酰乙酸乙酯和乙二醇反应合成了苹果酯,考察了反应物摩尔比、催化剂用量、带水剂、反应时间等工艺条件对产品收率的影响。结果表明,在乙酰乙酸乙酯与乙二醇摩尔比1:1.5,催化剂用量占反应物总量2%,带水剂环己烷用量为总反应物体积37.5%的条件下,反应2小时苹果酯的收率可达76.8%。Fructone was synthesized with ethyl acetoacetate and glycol by using solid acid SO2-4/ZrO2-TiO2 as catalyst.The effects of water-carrying reagent,feed ratio,reaction time,catalyst dosage on the yield of the product were studied.Results showed that the optimum reaction conditions were molar ratio of cyclohexanon to ethylene 1：1.5,catalyst dosage 2%（w%） of the total reactants,and the amount of cyclohexane 37.5%（V%） of the total reactants.After 2 h reaction,the yield of fructone reached 76.8%.

关 键 词：乙酰乙酸乙酯 乙二醇 苹果酯 合成 催化 固体酸 

分 类 号：TQ655[化学工程—精细化工]