Method of dewaxing a vegetable oil

Details Method of dewaxing a vegetable oil Method of dewaxing a vegetable oil

1983-03-31

1985-10-08

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09F 510

Patent

active

045459401

ABSTRACT:
A method of dewaxing a vegetable oil which comprises adjusting the temperature of a vegetable oil containing a wax to allow the wax to crystallize and subjecting the temperature-adjusted oil to filtration by means of a porous membrane having a critical surface tension (.gamma.c) of less than 33 dynes/cm and having an average pore diameter of 0.05 to 5 .mu.m, thereby selectively permeating the vegetable oil through the membrane while separating the wax from the vegetable oil. The process of the present invention is useful not only for dewaxing a vegetable oil but also for removing a wax together with a phospholipid, a free fatty acid and water from a crude vegetable oil.

REFERENCES:
patent: 4229297 (1980-10-01), Nohmi et al.
patent: 4414157 (1983-11-01), Iwana et al.

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