This product is made from highly-pure montmorillonite by means of acidifying, crushing, granulating and sifting. It's mainly used as the elimination agent of alkene in extraction installation of the benzene products series and used to refine the fuel oil for jet engine. It has been widely used to decolor and refine of the animal oil and fat, edible oil,plant slipid and cosmetic raw material, petroleum industry, chemical industry for daily use.