异丙醇氧化与丙烯环氧化集成反应  

INTEGRATED REACTION OF i-PROPYLALCOHOL OXIDATION AND PROPYLENE EPOXIDATION

作　　者：孟纪文[1] 李钢[1] 郭新闻[2] 王祥生[2] 

机构地区：[1]大连理工大学催化化学与工程系 [2]大连理工大学催化化学与工程系大连理工大学精细化工国家重点实验室,辽宁大连116012

出　　处：《石油学报（石油加工）》2004年第4期38-43,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家重点基础研究发展规划项目(G2000048009);辽宁省博士启动基金资助项目(2001102085)

摘　　要：采用异丙醇氧化法制过氧化氢(H2O3),并利用其反应产物直接进行丙烯环氧化合成环氧丙烷(PO)。异丙醇氧化反应中,加入的稳定剂可以抑制引发剂分解生成自由基,造成反应活性降低;反应温度越高,引发剂量越多,引发剂分解生成的自由基越多,结果反应活性越高;氧分压增高,反应活性略微升高,但影响不显著。异丙醇氧化与丙烯环氧化集成反应过程中,异丙醇氧化时间越长,生成的H2O2浓度越高,则丙烯环氧化时H2O2的转化率xH2O2越低,PO生成量增多,但产率降低。The process of i-propylalcohol oxidation to produce hydrogen peroxide, and propylene epoxidation catalyzed by TS-1 was studied. In i-propylalcohol oxidation, stable agent inhibits the decomposition of initiator to form free radicals. The i-propylalcohol oxidation activity strongly increased with the increase of temperature and the amount of initiator added; the oxygen partial pressure showed less effects on the oxidation activity, which increased with the increase of the oxygen partial pressure slightly. In the integrated reaction of i-propylalcohol oxidation and propylene epoxidation, hydrogen peroxide conversion and the yield of propylene oxide decreased with the reaction time as the amount of propylene oxide increased.

关 键 词：过氧化氢 异丙醇 TS-1 丙烯 环氧化 

分 类 号：O643[理学—物理化学]