Liquid-phase oxidation of α-pinene with oxygen catalyzed by carbon-supported platinum metals

被引：12
|
作者：
Kuznetsova, L. I. [1 ]
Kuznetsova, N. I.
Lisitsyn, A. S.
Beck, I. E.
Likholobov, V. A.
Ancel, J. E.
机构：
[1] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Siberian Branch, Inst Hydrocarbon Proc, Omsk, Russia
[3] ARCHEMIS, F-69153 Decines Charpieu, France
来源：
KINETICS AND CATALYSIS | 2007年 / 48卷 / 01期
关键词：
D O I：
10.1134/S0023158407010065
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 liquid-phase oxidation of alpha-pinene with oxygen at 70-90 degrees C is studied in the presence of Pd, Pt, Ru, Rh, and Ir supported on carbon. The conversion of alpha-pinene and the selectivity of formation of the main reaction products, namely, verbenol (1), verbenone (2), and alpha-pinene oxide (3), depends on the nature of the metal, on its oxidation state and extent of dispersion, and on the admixtures introduced into the system. In the presence of the Pt catalysts and promoting admixtures of tetrahexylammonium chloride (Hex(4)NCl), the selectivity of formation of the most valuable oxidation products (1 + 2) reaches 50% at an alpha-pinene conversion of 20-30%. The fraction of resinlike oxidation products decreases in the presence of the catalysts. The results obtained are discussed in the framework of the radical mechanism of alpha-pinene oxidation.
引用
收藏
页码：38 / 44
页数：7
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