TiO_2/S_2O_8^(2-)固体超强酸催化长叶烯异构化反应  

Study in Isomerization of Longifolene Catalyzed by TiO_2/S_2O_8^(2-) Solid Superacid

作　　者：徐景士[1] 周国斌[1] 陈慧宗[1] 刘跃龙[1] 王红明[1] 

机构地区：[1]江西师范大学化学与生物科学学院,南昌330027

出　　处：《化学通报》2001年第10期647-650,共4页Chemistry

基　　金：江西省自然科学基金资助项目 (0 0 2 0 0 0 9)

摘　　要：采用TiO2 S2 O82 -固体超强酸催化长叶烯异构化反应 ,考察了催化剂制备方法及处理催化剂所用的 (NH4 ) 2 S2 O8溶液浓度、催化剂的焙烧温度、用量、反应温度及反应时间等对催化性能的影响 ,得出最佳反应条件。TiO2 S2 O82 -固体超强酸对长叶烯异构化反应具有很高的催化活性和选择性 ,主产物为异长叶烯 ,得率高达约 96%。TiO 2/S 2O 8 2- solid superacid was used to catalyze the isomerization of longifolene. The effects of preparation methods,impregnation concentration,calcination temperature, reaction temperature,reaction time, amount of TiO 2/S 2O 8 2- catalyst on catalytic activity of longifolene were studied and the optimal condition of isomerization were obtained. The results indicate that the solid superacid has fair catalytic activity and selectivity on longifolene isomerization. The main product was isolongifolene and the yield was about 96%.

关 键 词：TiO2/S2O8^2-固体超强酸 长叶烯 异构化 异长叶烯 二氧化钛 硫酸 催化反应 催化剂 催化活性 香料 

分 类 号：O643.3[理学—物理化学]