Epoxidation of soybean oil by the methyltrioxorhenium-CH2Cl2/H2O2 catalytic biphasic system |
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| Authors: | Annelise E Gerbase José R Gregório Márcia Martinelli Márcia C Brasil Ana N F Mendes |
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| Affiliation: | 1. Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gon?alves, 9500, 91501-970, Porto Alegre, Brazil
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| Abstract: | 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 doublebond
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. |
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| Keywords: | Epoxidation biphasic system hydrogen peroxide methyltrioxorhenium selective epoxidation soybean oil |
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