Epoxidation of soybean oil by the methyltrioxorhenium-CH2Cl2/H2O2 catalytic biphasic system

被引：98

作者：

Gerbase, AE ^{[1
]}

Gregório, JR ^{[1
]}

Martinelli, M ^{[1
]}

Brasil, MC ^{[1
]}

Mendes, ANF ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 2002年 / 79卷 / 02期

关键词：

epoxidation biphasic system; hydrogen peroxide; methyltrioxorhenium; selective epoxidation; soybean oil;

D O I：

10.1007/s11746-002-0455-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We studied the methyltrioxorhenium (MTO)-CH2Cl2/H2O2 biphasic system for epoxidizing soybean oil. The reactions were optimized (reactant ratio, time, and temperature), which resulted in a better performance (higher conversion and selectivity) than those described in the literature. Total double-bond conversion and 95% selectivity were obtained in 2 h at room temperature. Furthermore, it was possible to reach desired epoxidation degrees by changing the oxidant and MTO amounts. The rhenium-epoxidized soybean oil remained stable in the absence of stabilizers for up to 30 d when stored at mild conditions.

引用

页码：179 / 181

页数：3

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