Phase relations pertaining to the solvent winterization of crude peanut oil in 85–15 Acetone‐hexane mixture

Abstract

SummaryFundamental phase relation data have been obtained on a laboratory scale which show that solvent winterization of crude peanut oil is feasible in a solvent consisting of 85 parts by weight of acetone and 15 parts of commercial hexane. The results show the effect of oil‐solvent ratio, chilling temperature, and holding‐time upon the percentage of solid removed. The behavior of crude peanut oil is very similar to that of the refined oil in the same solvent except that a slightly lower chilling temperature is required and that the crystals tend to form a little more slowly and do not settle out as readily. The advantage of winterizing hexane‐extracted peanut oils before refining is discussed.