Crude edible oil wax removal process

Details Crude edible oil wax removal process Crude edible oil wax removal process

1979-12-26

1981-06-09

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C11B 306

Patent

active

042724473

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.degree. F. to about 120.degree. 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.degree. F. to about 70.degree. F. for at least 5 hours; refining said tempered and cooled oil at a temperature of about 80.degree. F.-90.degree. 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 maximum temperature of about 120.degree. F.; and separating said oil phase from said aqueous phase.

REFERENCES:
patent: 2412251 (1946-12-01), Clayton
patent: 2564407 (1951-08-01), Parkin
patent: 3943155 (1976-03-01), Young
patent: 4035402 (1977-07-01), Levine

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