活性炭负载单质碘催化环己醇脱水制环己烯  

Preparation of Cyclohexene from Cyclohexanol by Dehydration Using I_2/C as a Catalyst

作　　者：唐满生[1] 刘星明[1] 袁先友[1] 张敏[1] 

机构地区：[1]湖南科技学院化学与生物工程系,湖南永州425100

出　　处：《合成化学》2009年第3期363-365,共3页Chinese Journal of Synthetic Chemistry

基　　金：湖南省自然科学基金资助项目(09JJ30);湖南省重点学科建设资助项目(2006-180);湖南省教育厅重点科研资助项目(08A023)

摘　　要：以活性炭负载单质碘为催化剂,环己醇脱水制备环己烯。考察了I2负载量、催化剂用量、反应温度、反应时间对脱水反应的影响,以及催化剂的重复使用性能。较适宜的反应条件为:I2负载量为23.8%,环己醇20mL,催化剂4g,于185℃反应2h,产率达70.2%。催化剂可重复使用。Cyclohexene was prepared from cyclohexanol by dehydration using iodine supported on active carbon（I2/C） as a catalyst. The influences of loaded amount of I2, catalyst amount, reaction temperature, reaction time and reused catalyst in dehydration on dehydration were investigated. The optimum reaction conditions at 185℃ for 2 h were as follows： loaded amount of 12 was 23.8% ; catalyst was 4 g. The yield reaches 70.2% under the reaction conditions, and catalyst can be reused.

关 键 词：环己烯 环己醇 活性炭负载碘 催化 

分 类 号：O624.12[理学—有机化学]