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Solvent extraction of fatty acids from natural oils with liquid water at elevated temperatures and pressures
Author(s) -
Briones Jose A.,
Mullins Joseph C.,
Thies Mark C.
Publication year - 1990
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02540505
Subject(s) - distillation , chemistry , solvent , extraction (chemistry) , soybean oil , chromatography , fatty acid , organic chemistry , pulp and paper industry , food science , engineering
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.