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
收藏
页码：179 / 181
页数：3
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