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Issue 39, 2015
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Catalyst free production of partial glycerides: acetone as solvent

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Abstract

Glycerolysis of sunflower oil was studied using acetone as the solvent. Reactions were carried out at 200 to 250 °C without the need of conventional catalyst. The use of acetone in glycerolysis of oil allowed the reaction to be carried out at 250 °C and 1.8 MPa, resulting in a product that comprises 4.5% solketal, 5.8% FFA, 49.2% MG, 33.5% DG and 7% TG in 2 h. The important parameters investigated in this study were acetone addition, stirring and reactor loading. This new approach in the synthesis of partial glycerides (monoglycerides and diglycerides) avoids the use of chemical catalyst, thus avoiding unnecessary wastewater production. The partial glycerides produced may be utilized in may areas of food and pharmaceutical industries. Moreover the use of acetone as solvent allows the process to be carried out at lower operating pressures compared to other non-catalytic glycerolysis and at the same time co-produces solketal, having a wide application in fuels, pharmaceuticals and chemical synthesis.

Graphical abstract: Catalyst free production of partial glycerides: acetone as solvent

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Supplementary files

Article information


Submitted
20 Feb 2015
Accepted
24 Mar 2015
First published
24 Mar 2015

RSC Adv., 2015,5, 30833-30840
Article type
Paper

Catalyst free production of partial glycerides: acetone as solvent

A. W. Go, S. Sutanto, S. Ismadji and Y. Ju, RSC Adv., 2015, 5, 30833
DOI: 10.1039/C5RA03249K

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