C - Chemistry – Metallurgy – 11 – B
Patent
C - Chemistry, Metallurgy
11
B
260/498.6
C11B 3/06 (2006.01)
Patent
CA 1157043
IMPROVED CRUDE EDIBLE OIL WAX REMOVAL PROCESS Christopher R. Beharry ABSTRACT This invention relates to an improved process for refining and dewaxing crude vegetable oils and, more particularly, to a process in which efficient separation of undesirable waxes (about 60% to 90%) can be consistently achieved in refining crude oils such as sunflower, safflower, and corn oil. A process for bulk dewaxing and refining crude vegetable oil comprising the steps of: tempering said crude vegetable oil for wax nucleation at a temperature of from about 75°F to about 120°F for at least about 24 hours; then cooling and holding said tempered crude vegetable oil for wax agglomeration at a temperature of from about 40°F to about 70°F for at least 5 hours; refining said tempered and cooled oil at a temperature of about 80°F-90°F, with an aqueous alkali solution to provide a mixture of a wax containing aqueous phase and a refined oil phase; heating said mixture to a max- imum temperature of about 120°F; and separating said oil phase from said aqueous phase.
367460
Kirby Eades Gale Baker
The Procter & Gamble Company
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