离子液体体系中ZSM-5分子筛催化环己烷氧化反应研究  

Oxidation of cyclohexane catalyzed by ZSM-5 in ionic liquid with tert-butyl-hydroperoxide

作　　者：王建英[1] 纪俊荣[1] 秦俊杰 李丹[1] 李青[1] 崔文豪[1] 胡永琪[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]山东省莱芜市质量技术监督局,山东莱芜271100

出　　处：《河北科技大学学报》2009年第3期197-200,261,共5页Journal of Hebei University of Science and Technology

基　　金：国家自然科学基金资助项目(20776037);河北科技大学校立科研基金资助项目(XL200716)

摘　　要：以离子液体[emim]BF4为反应介质,叔丁基过氧化氢(TBHP)为氧化剂,考察了不同硅铝比(质量比,下同)ZSM-5分子筛对环己烷氧化反应的影响。结果表明:在离子液体[emim]BF4溶剂中,环己烷转化率随催化剂硅铝比的增大而减小,硅铝比为25的催化剂催化活性最高,环己烷转化率及产物总收率高达15.8%和15.3%。与传统溶剂丙酮和无溶剂相比,离子液体中HZSM-5分子筛具有较高的环己烷氧化反应活性。Cyclohexane oxidation reactions were studied by using ZSM-5 molecular sieve with different Si/A1 ratios in ionic liquid[emim]BF4. Results show that the activities of cyclohexane oxidation decrease with the increase of Si/A1 ratio. The HZSM- 5 with a Si/AI ratio of 25 posesses the highest activity. The conversions of eyclohexane is 15.8% and the yield of products is 15.3%. Higher yields and selectivity of products were found in ionic liquid than those in molecular solvent acetone or no solvent.

关 键 词：离子液体 环己烷 ZSM-5 叔丁基过氧化氢 

分 类 号：O645.4[理学—物理化学]