文献类型：期刊文献

中文题名：过氧化氢异丙苯催化氧化丙烯制环氧丙烷

英文题名：Catalytic Epoxidation of Propylene to Propylene Oxide by Cumene Hydroperoxide

作者：王晓晗[1];卢冠忠[1]

机构：[1]华东理工大学工业催化研究所,上海200237

年份：2000

卷号：21

期号：5

起止页码：407

中文期刊名：催化学报

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：过氧化氢异丙苯;丙烯;环氧化;环氧丙烯;催化氧化

外文关键词：molybdenum glycol catalyst, cumene hydroperoxide, propylene, epoxidation, propylene oxide

摘要：研究了以钼 醇配合物为催化剂 ,过氧化氢异丙苯为环氧化剂 ,乙醇为溶剂的丙烯一步氧化制环氧丙烷的反应 .结果表明 ,用不同的二醇和不同醇 /钼比制备的钼醇催化剂具有不同的催化性能和酸性 ,用乙二醇和丙二醇制备的催化剂 ,催化性能优于丁二醇制备的催化剂 .考察了反应条件 (温度、压力和时间 )对环氧化反应活性的影响 .在 10 0℃ ,0 5MPa的条件下反应 2h ,过氧化氢异丙苯的转化率为 6 5 0 % ,环氧丙烷的选择性为 70 4% .
The epoxidation of propylene to propylene oxide, using cumene hydroperoxide as oxidant, molybdenum glycol complex as catalyst and ethanol as solvent, has been investigated. Molybdenum glycol complexes synthesized with different alkylene glycols and Mo/alcohol ratios have different acidity and catalytic activity. For the topic reaction, the catalytic activity of Mo 1,2 ethandiol or Mo 1,2 propanediol is higher than that of Mo butanediol. The operation conditions (temperature, time and pressure) of epoxidation of propylene are studied. At 100 ℃ and 0 5 MPa for 2 h, the conversion of cumene hydroperoxide is about 65 0% and the selectivity for propylene oxide is 70 4%. The mechanism of epoxidation of propylene catalyzed by Mo glycol complex is discussed also.