continuous synthesis of oleyl oleate in supercritical carbon dioxide using solid p-toluenesulfonic acid as catalyst
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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.
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Journal title:
iranian journal of chemistry and chemical engineering (ijcce)Publisher: iranian institute of research and development in chemical industries (irdci)-acecr
ISSN 1021-9986
volume 19
issue 2 2000
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