... 3.low free acid activated clay for palm oil:1.activated clay characters: 1) strong decoloring-ability 2) good adsorption 3) low free acid 2. activated clay working: emerge and ... :Cottonseed, Soyabean, Sunflower, Rapeseed, Mustard, Peanut, Coconut, Corn, Olive, Ricebran, Palm, Linseed, Castor, tung oil and so on. 2) Refining of hydrogenated ...