Catalytic oxidation of α-eicosanol into eicosanic acid in the presence of Ti-MCM-41 or active component supported Ti-MCM-41 catalysts

被引：4
|
作者：
Kan, QB [1 ]
Bi, YL [1 ]
Ying, ZY [1 ]
Wu, TH [1 ]
Zhen, KJ [1 ]
机构：
[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2001年 / 44卷
关键词：
Ti-MCM-41; mesoporous materials; P-W heteropoly compound; catalytic oxidation; eicosanol;
D O I：
10.1016/S1387-1811(01)00241-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The catalytic oxidation of alpha -eicosanol to eicosanic acid with oxygen or hydrogen peroxide is carried out over Ti-MCM-41 catalysts. Several Factors that influence the catalytic activity of Ti-MCM-41, such as the state and content of Ti, reaction temperature and time, and catalyst amount, are investigated. Transition metal-supported Ti-MCM-41 catalysts are also used for the catalytic oxidation of a-eicosanol with oxygen and the results show that Cr/Ti-MCM-41 possesses higher oxidative activity, while Cu/Ti-MCM-41 exhibits very low conversion of alpha -eicosanol. Using hydrogen peroxide as oxidant peroxotungsto-phospho-quaternary ammonium has higher catalytic activity for the oxidation reaction of alpha -eicosanol than Ti-MCM-41. Supporting peroxotungsto-phospho-quaternary ammonium onto Ti-MCM-41 can greatly improve the oxidative conversion of alpha -eicosanol into eicosanic acid. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：609 / 617
页数：9
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