Oxidation of Cyclohexane and Ethylbenzene by Hydrogen Peroxide over Co-substituted Heteropolytungstate Catalyst

被引：0
|
作者：
Kanjina, Warangkana [1 ]
Trakarnpruk, Wimonrat [1 ]
机构：
[1] Chulalongkorn Univ, Program Petrochem, Dept Chem, Fac Sci,Ctr Excellence Petr Petrochem & Adv, Bangkok 10330, Thailand
来源：
JOURNAL OF METALS MATERIALS AND MINERALS | 2010年 / 20卷 / 02期
关键词：
Polyoxotungstate; Cyclohexane; Ethylbenzene; Oxidation; Hydrogen peroxide;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The tetrabutylammonium salt of Co-substituted heteropolytungstate, [(n-C4H9)(4)N](4) HPW11Co(H2O)O-39 center dot 3H(2)O was synthesized and characterized. It was shown to be an active catalyst for the oxidation of cyclohexane and ethylbenzene. The oxidation reactions were performed using green oxidant hydrogen peroxide and acetonitrile as solvent. The major products of the oxidation of cyclohexane were cyclohexanone (K) and cyclohexanol (A). High selectivity towards K-A oil was achieved. At longer time cyclohexanol was converted to cyclohexanone. Ethylbenzene was also selectively oxidized to acetophenone. These oxidation reactions appear to be radical processes since they were totally inhibited in the presence of radical scavenger.
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页码：29 / 34
页数：6
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