Styrene oxidation with H2O2 over Ti-containing molecular sieves with MFI, BEA and MCM-41 topologies

被引：197
作者：
Hulea, V
Dumitriu, E
机构：
[1] CNRS, Lab Mat Catalyt & Catalyse Chim Organ, UMR 5618, ENSCM, F-34216 Montpellier 5, France
[2] Tech Univ Iasi, Catalysis Lab, Iasi 700050, Romania
来源：
APPLIED CATALYSIS A-GENERAL | 2004年 / 277卷 / 1-2期
关键词：
TS-1; Ti-beta; TiMCM-41; styrene oxidation; hydrogen peroxide;
D O I：
10.1016/j.apcata.2004.09.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A comparative Study concerning the use of Ti-containing molecular sieves with MFI (TS-1), BEA (Ti-beta) and MCM-41 (TiMCM-41) topologies for the styrene oxidation in liquid phase by hydrogen peroxide was performed. The major reactions were epoxidation of styrene, the isomerization of styrene oxide into phenylacetaldehyde (PhAA) as well as its oxidative cleavage into benzaldehyde (BzA) and formaldehyde. A high selectivity to PhAA was observed over TS-1, whereas the BzA formation is predominant on Ti-beta and TiMCM-41. Also, the influence of the reaction time and the nature of solvent on the styrene conversion, the selectivity of hydrogen peroxide consumption and on the product distribution were studied. (C) 2004 Elsevier B.V. All rights reserved.
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页码：99 / 106
页数：8
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