环氧环己烷的合成新工艺研究  

Novel environment benign process for preparation of cyclohexylene oxide

作　　者：盛卫坚[1] 贾建洪[1] 韩非[1] 王淑英[1] 史娟玲[1] 高建荣[1] 

机构地区：[1]浙江工业大学绿色化学国家重点实验室培育基地,浙江杭州310032

出　　处：《浙江工业大学学报》2006年第4期386-388,共3页Journal of Zhejiang University of Technology

基　　金：中石化资助项目(X050217)

摘　　要：由钨酸钠与磷酸缩合，再与季铵盐阳离子复配获得了具高催化活性的环氧化反应催化剂．以环己烯为原料，以低浓度H2O2为氧源，在温和的条件下较高收率的合成了环氧环己烷．该工艺避免了传统路线工艺复杂、污染严重、安全性差等缺点，工业化可行性强．经优化较佳的环氧化反应条件为：催化剂：环己烯：H2O2=1：200：130，反应温度为50～60℃，pH=3．5～5．5，时间1～4h，环己烯转化率为40％～50％，H2O2利用率约为80%，环氧环己烷收率为80％～85％．Heterpoly ion/PTC/H2O2 system which has high epoxide catalysis activity was synthesized by the combination of Na2WO4 with H3 PO4. Using cyclohexene as raw material, H2O2 as oxidation agent, epoxycyclohexane was obtained with a high yield at a mild reaction condition. The disadvantages of the traditional method, such as a long and complex synthesizing route, high pollution, poor security can be avoided. The optimized conditions are as follows： the mole ratio of catalyst, cyclohexene and H2O2 1 ： 200 ： 130, reaction temperature 50～60℃, reaction time 1～4 h. Under these conditions the conversation of the cyclohexene is about 40～50$, the utilizing rate of H2O2 is about 80%, the yield of expoxycyclohexane is about 80～85%.

关 键 词：环氧环己烷 环己烯 环氧化反应 催化氧化 

分 类 号：O621.254.1[理学—有机化学]