温和条件下纳米氧化铁催化剂催化氧化环己烷的反应性能  

Catalysis Aerobic Oxidation of Cyclohexane With Nano-size Iron Oxide Under Mild Condition

作　　者：靳海波[1] 原伟伟[1] 郭志武[1] 何广湘[1] 

机构地区：[1]北京石油化工学院化学工程系,北京102617

出　　处：《石油学报（石油加工）》2011年第2期263-268,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(21073020);北京市属高等学校人才强教深度计划项目(PHR200906139);北京市教育委员会科技发展计划面上项目(KM200710017003)资助

摘　　要：采用超声波方法制备的纳米氧化铁催化剂,分别以叔丁基过氧化氢和异丁醛为引发剂,考察了温和条件下操作条件、催化剂用量、引发剂用量、空气量对环己烷的催化氧化反应。结果表明,以叔丁基过氧化氢和异丁醛为引发剂,在反应温度70℃、常压、反应时间3 h时,环己烷的转化率分别可达到15.5%和16.8%,环己醇、环己酮、环己基过氧化物总选择性分别为90.2%和94.5%。在同样的反应条件下,以异丁醛作引发剂环己烷的转化率与总选择性均比以叔丁基过氧化氢作引发剂的高。The oxidation of cyclohexane with molecular oxygen catalyzed by nano-size iron oxide prepared by ultrasonic irradiation method was studied under mild conditions.The effect of reaction time,temperature,catalyst and initiator amounts,and air amount on the oxidation reaction of cyclohexane were discussed.The conversion of cyclohexane oxidation under ambient pressure,reaction temperature 70℃ and reaction time 3 h was 15.5 % and 16.8%,and the total selectivity of cyclohexanol,cyclohexanone and cyclohexyl hydroperoxide was 90.2% and 94.5% with tert-butyl hydroperoxide and sobutylaldehyde as initiator,respectively.According to experimental results,the conversion of cyclohexane and the total selectivity to cyclohexanol,clohexanone and cyclohexyl hydroperoxide with sobutylaldehyde as initiator were more than that with tert-butyl hydroperoxide as initiator.

关 键 词：纳米氧化铁 环己烷 温和条件 液相氧化 

分 类 号：O624.11[理学—有机化学]