Solvent extraction of fatty acids from natural oils with liquid water at elevated temperatures and pressures |
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Authors: | Jose A Briones Joseph C Mullins Mark C Thies |
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Affiliation: | (1) Department of Chemical Engineering, Clemson University, 29634-0909 Clemson, SC;(2) Present address: Reichhold Chemicals, Inc., P.O. Drawer K, 19903 Dover, DE |
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Abstract: | The use of liquid water at elevated temperatures and pressures as an extractive solvent for separating mixtures of compounds
which occur in natural oils has been studied. A southern pine tall oil and a distillate from the deodorization of soybean
oil were extracted with liquid water at temperatures from 298 to 312°C and pressures between 103 and 121 bar. Results indicate
that water can be used to extract fatty and resin acids from crude tall oil to obtain a product with a high acid content that
produces less pitch during distillation. The process can also be used to extract fatty acids from vegetable oil deodorizer
distillate. |
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Keywords: | Deodorizer distillate extraction fatty acids phase equilibria solubility sterols tall oil tocopherols |
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