文献类型：期刊文章

作　　者：马书启[1] 李钢[1] 王祥生[1] 金长子[1] 刘民[1] 郭新闻[1]

机构地区：[1]大连理工大学催化化学与工程系,辽宁大连116012

出　　处：《燃料化学学报》

基　　金：高等学校全国优秀博士学位论文作者专项资金(200346)~~

年　　份：2005

卷　　号：33

期　　号：4

起止页码：509-512

语　　种：中文

收录情况：AJ、BDHX、BDHX2004、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、EI(收录号：2005389375605)、IC、JST、RCCSE、SCOPUS、ZGKJHX、核心刊

摘　　要：1-Butylene epoxidation was catalyzed by microporous titanosilicate molecular sieves TS-1 synthesized by different methods and mesoporous titanosilicate molecular sieves Ti-HMS, using dilute hydrogen peroxide solution as oxidant. The effect of the Si/Ti molar ratio of the catalyst TS-1 and Ti-HMS on their performance was investigated. Conventional TS-1 has smaller crystal size and higher activity than that of TS-1 synthesized by using TPABr as template or the method of gas-solid phase. The TS-1 synthesized by using TPABr as template exhibits the highest selectivity to 1, 2-epoxybutane （BO）. With the increase of Ti content in molecular sieves, the conversion of H2O2 increases. The catalytic activity of mesoporous Ti-HMS is lower than that of TS-1, and large amount of H2O2 is decomposed in 1-butylene epoxidation. The primary reason for low activity of Ti-HMS in 1-butylene epoxidation is that Ti-HMS has poorer hydrophobicity property than TS-1.

关 键 词：钛硅分子筛 TS-1 Ti—HMS  1-丁烯 环氧化反应 环氧丁烷

分 类 号：TE624.99]