用S_2O_8^(2-)改性的TiO_2固体超强酸催化合成异长叶烯

Synthesis of Isolongifolene with the Solid Superacid Catalyst TiO_2 Modified by Persulfaste

该文首次采用TiO2 /S2 O2 - 8固体超强酸催化长叶烯异构化反应 ,并考察了催化剂制备方法 ,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因素对催化性能的影响 ,得出最佳反应条件 .实验还表明TiO2 /S2 O2 - 8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 .

First time,TiO 2/S 2O 2- 8 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 2- 8 catalyst on catalyst activity of longifolene were studied and the suitable condition of isomerization of the catalyst were obtained.The results indicate that the solid superacid has fair catalytic activity and selectivity on longifolene isomerization.