Strategies to improve the epoxidation activity and selectivity of Ti-MCM-41

被引：220
|
作者：
Corma, A
Domine, M
Gaona, JA
Jordá, JL
Navarro, MT
Rey, F
Pérez-Pariente, J
Tsuji, J
McCulloch, B
Nemeth, LT
机构：
[1] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, Valencia 46022, Spain
[2] CSIC, Inst Catalisis & Petroleoquim, E-28049 Madrid, Spain
[3] Sumitomo Chem Co Ltd, Petrochem Res Lab, Sodegaura, Chiba, Japan
[4] UOP LLC, Des Plaines, IL 60017 USA
来源：
CHEMICAL COMMUNICATIONS | 1998年 / 20期
关键词：
D O I：
10.1039/a806702c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two strategies to improve the catalytic activity of Ti-MCM-41 materials in the epoxidation of olefins are described; the first approach involves silylation of the surface of Ti-MCM-41 which produces a very hydrophobic catalyst whereas the second approach is based on removal of water from the reaction media; the increase in activity is not due to a change in the intrinsic activity of the Ti sites, but rather to a decrease of the catalyst deactivation by reducing the formation of diols produced by ring opening of the epoxide.
引用
收藏
页码：2211 / 2212
页数：2
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