Direct hydroxylation of aromatics over copper-calcium-phosphates in the gas phase

被引：20
|
作者：
Bahidsky, M [1 ]
Hronec, M [1 ]
机构：
[1] Slovak Univ Technol Bratislava, Dept Organ Technol, Bratislava 81237, Slovakia
来源：
CATALYSIS TODAY | 2005年 / 99卷 / 1-2期
关键词：
benzene; phenol; hydroxylation; phenyl radical;
D O I：
10.1016/j.cattod.2004.09.039
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new alternative process for the direct gas phase hydroxylation of aromatics is studied using molecular oxygen (air) or nitrous oxide in the presence of copper containing calcium-phosphate. The activity of Cu-Ca-phosphate catalyst in the reaction of benzene with oxygen, N2O or the mixture of oxygen-ammonia as oxidants is compared. Beside benzene also alkyl aromatics were used in the same reaction. The preferred reaction is attack on a side chain. We suggest that the oxidation of benzene starts via formation of phenyl radical. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：187 / 192
页数：6
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