Specifications Bleaching Earth for Waste Oil Refining 1)Free acid:<=0.20% 2)Moisture: <=10. ... 0% 3)High filtration speed Activated Clay for Waste Oil Recycling1)Raw Material:High quality bentonite and high quality ... ,kerosene,white oil,vaseline,etc.♦Used for recycling and regeneration of industrial waste oil,such as machine oil,lubricating oil,used oil,etc ...