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Epoxidation of soybean oil by the methyltrioxorhenium‐CH 2 Cl 2 /H 2 O 2 catalytic biphasic system
Author(s) -
Gerbase Annelise E.,
Gregório José R.,
Martinelli Márcia,
Brasil Márcia C.,
Mendes A. F.
Publication year - 2002
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-002-0455-0
Subject(s) - rhenium , selectivity , catalysis , soybean oil , chemistry , epoxidized soybean oil , reaction conditions , nuclear chemistry , organic chemistry , food science , raw material
We studied the methyltrioxorhenium (MTO)‐CH 2 Cl 2 /H 2 O 2 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.