Oxidation of ethylbenzene over Ti-, V- and Sn-containing silicalites with MFI structure

被引：53

作者：

Mal, NK ^{[1
]}

Ramaswamy, AV ^{[1
]}

机构：

[1] NATL CHEM LAB,PUNE 411008,MAHARASHTRA,INDIA

来源：

APPLIED CATALYSIS A-GENERAL | 1996年 / 143卷 / 01期

关键词：

metallo-silicates; TS-1; VS-1; Sn-silicalite; molecular sieves; ethylbenzene oxidation; oxidation with H2O2;

D O I：

10.1016/0926-860X(96)00071-3

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：

The oxidation of ethylbenzene has been carried out over TS-1, VS-1 and Sn-silicalite-1 (MFI structure) using H2O2 as oxidant at 333-353 K. The major products were 1-phenylethanol and acetophenone arising from the oxidation of the side chain. Aromatic ring hydroxylation leads to the formation of ortho-and para-hydroxy ethylbenzene as a minor side reaction. The differences in the product selectivities could be explained on the basis of the reaction intermediates. Among the three metallo-silicates, Sn-silicalite-1 is found to be the most active with an H2O2 efficiency of about 60 mol.%. The influence of various reaction parameters on the conversion and selectivity of ethylbenzene over Sn-silicalite-1 is reported.

引用

页码：75 / 85

页数：11

共 18 条

[1] TITANIUM SILICATE MOLECULAR-SIEVE (TS-1)/H2O2 INDUCED TRIPHASE CATALYSIS IN THE OXIDATION OF HYDROPHOBIC ORGANIC-COMPOUNDS WITH SIGNIFICANT ENHANCEMENT OF ACTIVITY AND PARA-SELECTIVITY [J].