新固体酸SO_4^(2-)-MoO_3-TiO_2催化制备环已烯  

Preparation of Cyclohexene by Dehydration of Cyclohexanol on SO_4^(2-)-MoO_3-TiO_2 Catalyst

作　　者：何节玉[1] 廖德仲[1] 

机构地区：[1]岳阳师范学院化工系,湖南岳阳414000

出　　处：《化学世界》2002年第11期601-603,589,共4页Chemical World

基　　金：湖南省教育厅青年项目资助课题 (99B15 )

摘　　要：自制了一种新型固体催化剂 SO2 -4- Mo O3 - Ti O2 ,FT IR分析表明 ,催化剂表面具有强酸中心 ,吸附吡啶的 FT- IR表明 ,催化剂表面主要存在 Bro¨ nsted酸点 ,该催化剂对环己醇脱水制环己烯反应的活性高 ,并得到该反应的优化条件如下 :环己醇 40 g,催化剂 4g,反应温度 1 75°C,反应时间 1 .0 h,在此条件下 ,环己烯的产率达 90 %。A new solid acid catalyst SO 2- 4 MoO 3 TiO 2 was prepared. FT IR indicated that the catalyst had strong surface acid centers. FT IR spectra of pyridine absorbed on the surface showed that the catalyst had Br o ¨nsted acid sites. The catalyst showed high catalytic activity in preparation of cyclohexene by dehydration of cyclohexanol. The optimum conditions were as follows: cyclohexanol 40 g, catalyst 4 g,reaction temperature 175°C and reaction time 1.0 h. The yield of cyclohexene was 90%.

关 键 词：固体酸 So4^2--MoO3-TiO2 环已烯 环已醇 催化剂 二氧化钛 二氧化钼 

分 类 号：O624.12[理学—有机化学]