Kinetics of Epoxidation of Vegetable Oils Catalyzed by Formic Acid, Peroxophosphatotungstate and Methyltrioxorhenium

Wei Jie Zhang; Ping Ping Jiang; Feng Juan Wu; Min Chen

doi:10.4028/www.scientific.net/AMR.560-561.184

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 560-561Kinetics of Epoxidation of Vegetable Oils...

Kinetics of Epoxidation of Vegetable Oils Catalyzed by Formic Acid, Peroxophosphatotungstate and Methyltrioxorhenium

Abstract:

The kinetics of epoxidation of vegetable oils by traditional route (formic acid) or novel routes (peroxophosphatotungstate, methyltrioxorhenium) with hydrogen peroxide (H2O2, 30 wt. %) were investigated. The mathematical models describing the kinetics of epoxidation were developed. Using a linear fit method, kinetic parameters were estimated by fitting experimental data. The activation energy of the epoxidation reaction decreased in the following order: peroxophosphatotungstate > formic acid > methyltrioxorhenium. Other oils were also investigated under the same conditions. Results showed that the activation energy of epoxidation was in the order; rapeseed oil < fatty acid methyl ester < soybean oil < sunflower oil. Thermodynamic parameters of the epoxidation of vegetable oils were also obtained.

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Advanced Materials Research (Volumes 560-561)

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184-190

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https://doi.org/10.4028/www.scientific.net/AMR.560-561.184

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Online since:

August 2012

Authors:

Wei Jie Zhang, Ping Ping Jiang, Feng Juan Wu, Min Chen

Keywords:

Epoxidation, Formic Acid, Kinetic, Methyltrioxorhenium, Peroxophosphatotungstate, Vegetable Oils

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