Extraction of Oil 



533 



covery as to how this could be done that gave 

 the tremendous impetus to the edible coco-nut 

 butter trade at the beginning of this century, 

 and led to the introduction of the necessary 

 machinery and apparatus to free the oil from 

 acidity and other undesirable tastes or 

 properties. 



To do this satisfactorily the oil must first 



BATAILLE'S OIL PURIFYING VACUUM PLANT. 



be treated with soda, and afterwards washed 

 with water to remove any traces of its soda 

 treatment. 



The deodorization and general purification 

 of the oil is obtained by violently agitating the 

 oil in vacuo through the introduction of steam 

 jets. This method has been adopted by the 

 leading firms in the trades mentioned, />.; by 



