Dewaxing process for vegetable oils

Details Dewaxing process for vegetable oils Dewaxing process for vegetable oils

1975-09-30

1977-07-12

McCarthy, Helen M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C11B 306

Patent

active

040354024

ABSTRACT:
This invention relates to an improved process for dewaxing vegetable oils containing free fatty acid impurities, wax and other insoluble matter, which comprises: chilling a refined and water-washed or filtered vegetable oil, mixing the chilled vegetable oil with a dilute alkaline solution; gently agitating the resulting mixture, centrifuging the mixture and separating a heavy phase which contains wax and other impurities from a light phase which may then be bleached and deodorized to form a clear oil. The invention further relates to a reliable process for producing salad oils and other clear oils which remain clear at ambient to refrigerator temperatures.

REFERENCES:
patent: 2223077 (1940-11-01), Stadt
patent: 2564407 (1951-08-01), Parkin et al.
patent: 2686796 (1954-08-01), Markley et al.
patent: 2752378 (1956-06-01), Julian et al.
patent: 3102898 (1963-09-01), Schmitt
Rini; S. J.--"Refining, Bleaching, Stabilization, Deodorization, and Plasticization of Fats, Oils, and Shortening"--J.Am.Oil Chemists' Soc. 37--pp. 512-520, Oct. 1960.
Kirk-Othmer-Encyclopedia of Chem. Tech., vol. 8, pp. 786, 800.
Hackh's Chemical Dictionary -- p. 26, "Alkali" Definition.

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