... , 1000mesh, 1250mesh, 2500mesh 4000mesh, 6000mesh. Applicaiton:♦Used for decoloring,refining and purifying minerals,such as lubricating oil,diesel oil,paraffin ... and refinement of edible animal and vegetable oil for industrial purpose.♦Decoloration and refinement of resin and ... animal feed additive. It is used as a catalyst in petroleum refining. It possesses relatively high basal activity, strongly ...