PROCEDIMIENTO PARA DESACEITAR Y DESACTIVAR ARCILLA PARA BLANQUEAR AGOTADA QUE HA SIDO UTILIZADA EN LA REFINACION DE ACEITES ANIMALES Y VEGETALES Y CONSTITUYE UN SUBPRODUCTO DE LA MISMA,CONTENIENDO ENTRE 25 Y 40 POR CIENTO PONDERAL DE ACEITE COMESTIBLE ADSORBIDO

摘要

This invention relates to the treatment of spent bleaching clay which has been utilized in and is a byproduct of the refining of animal and vegetable oils. The potentially hazardous clay is suspended in an alkaline aqueous solution of soap to saponify adsorbed oil. The clay is thereby deoiled and, if desired, the remaining solution may be acidified for separation of fatty acid derived from the oil.