Showa Sangyo Co., Ltd.

Showa Sangyo Kabushiki Kaisha

Haruo Watanabe

Masaaki Negishi

Mutsuhito Watanabe

Toru Kitagawa

Harunobu Kobayashi

Takao Arima

Kiichi Aonuki

Kosei Yamada

A method of refining animal and vegetable oils and fats comprising mixing said oils and fats with an alkaline solution, admixing the resulting mixture with an acid solution, separating insoluble matter from the admixture, and, if required, treating the admixture with conventional adsorption and steam distillation techniques.

Methods for refining oils and fats

This invention relates to a method for the refining of palm type oils such as palm oil and other similar natural oils including palm kernel oil, coconut oil, and the like. The method includes adding a small quantity of phosphoric acid to a crude palm type oil, treating said oil with a small quantity of activated clay, and then subjecting said oil to steam refining of 200.degree. to 270.degree. C. with the blowing of superheated steam into the oil under high vacuum after the activated clay has been removed.

Method for refining of palm oils

The autoxidation resistance of an animal or vegetal fat or oil containing trace amounts of heavy metals which catalyze the autoxidation can be improved by contacting the fat or oil with solid citric, malic, or tartaric acid at a temperature below the melting point of the acid, and thereafter separating the acid particles from the fat or oil.

Method of improving the oxidation resistance of an oil or fat

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Funabashi, Japan

Haruo Watanabe