Preparation of heterogeneous vanadium (VO2+) catalyst for selective hydroxylation of cyclohexane by molecular oxygen

被引：30

作者：

Mishra, GS ^{[1
]}

Kumar, A ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Kanpur 208016, Uttar Pradesh, India

来源：

CATALYSIS LETTERS | 2002年 / 81卷 / 1-2期

关键词：

vanadium (VO2+) catalyst; selective hydroxylation; cyclohexane hydroxylation;

D O I：

10.1023/A:1016076526549

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 vanadium(II) Schiff base ligand, [1,4-bis (salicylidene amino)-phenylene] vanadium oxo complex bonded on carbamate-modified silica gel, has been synthesized. The liquid-phase oxidation reaction of cyclohexane with this catalyst was found to give cyclohexanol at moderate condition (reaction temperature 200 degreesC, pressure 23.8 atm, catalyst concentration 1.0% and 16 h of reaction time) with considerably higher specificity (18:1 ratio with cyclohexanone and negligible acid formation). The catalyst has been tested for 200 h of reaction and the leaching of the metal occurs negligibly.

引用

页码：113 / 117

页数：5

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