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Efficient epoxidation of vegetable oils through the employment of acidic ion exchange resins
Author(s) -
GómezdeMirandaJiménezdeAberasturi Olga,
PerezArce Jonatan
Publication year - 2019
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23429
Subject(s) - chemistry , ion exchange resin , catalysis , yield (engineering) , homogeneous , hydrogen peroxide , organic chemistry , acetic acid , sunflower oil , selectivity , vegetable oil , chemical engineering , materials science , physics , metallurgy , thermodynamics , biochemistry , engineering
The epoxidation of vegetable oils is a chemical or biochemical reaction where oil triglycerides are converted into more reactive molecules. These will be further transformed into a broad variety of products with significant potential for industrial applications. The epoxidation of vegetable oils consists of a commercially established process that uses homogeneous mineral acids as catalysts. In this paper, different strong acidic ion exchange resins were evaluated as alternatives to substitute the commercial homogeneous catalysts. Amberlyst 39 was selected as the most promising one to explore the effect of the variables such as temperature, acetic acid, or hydrogen peroxide concentration in sunflower oil epoxidation. The optimal operational conditions that maximized the conversion and oxirane yield were determined. Then, these values were applied in several catalyst reuses for establishing the resin durability. Results show that by employing ion exchange resins, excellent product yields and selectivity are obtained, minimizing post‐reaction purification needs.