Method for refining oils and fats

Details Method for refining oils and fats Method for refining oils and fats

C - Chemistry, Metallurgy

11

B

202/93

C11B 3/12 (2006.01) C11B 3/00 (2006.01)

Patent

CA 1163228

ABSTRACT OF THE DISCLOSURE The disclosure describes a method of refining an animal or vegetable oil or fat which is economical and which eliminates the washing step, thus avoiding the production of waste water and the accompanying environmental pollution. The method involves the following steps. (a) mixing said oil or fat with an aqueous solution of an alkaline substance; (b) separating the insoluble matter in the oil or fat from the resulting mixture; (c) directly admixing the deacidified separated oil or fat from step (b) with an aqueous solution of an acid; (d) treating the resulting admixture with an adsor- bent to adsorb coloring matter, impurities and salts formed during step (c); (e) separating said adsorbent from said oil or fat, and (f) treating said oil or fat after step (e) by steam distillation.

354550

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