Title of article :
Continuous Synthesis of Oleyl Oleate in Supercritical Carbon Dioxide using Solid p-Toluenesulfonic Acid as Catalyst
Author/Authors :
Ghaziaskar, Sayed Hassan Department of Chemistry - Esfahan University of Technology - Esfahan , Ikushima, Yutaka Tohoku National Industrial Research Institute - 4-2-1 Nigatake - Miyagino-ku - Sendai - 983-0036 - JAPAN
Abstract :
Supercritical carbon dioxide (SC-CO2) was used as solvent to synthesize oleyl oleate as an analog of Jojoba oil from oleic acid and oleyl alcohol with high conversion (100%) of the acid into ester in a short time of 100 min. Utilizing a low cost solid catalyst, p-toluenesulfonic acid monohydrate (PTSA), the esterification reaction was performed, without any prior preparation step, in a flow mode, at a pressure of 147 bar and a temperature of 60 °C. This method seems industrially suitable for the production of oleyl oleate. The solubility of a mixture of oleyl alcohol and oleic acid in SC-CO2 were also measured to calculate the alcohol to acid ratio and the esterification yield.
Keywords :
p-Toluenesulfonic acid , Jojoba oil , Esterification reaction , Oleyl oleate , Supercritical carbon dixide
Journal title :
Astroparticle Physics
