Phosphoric acid wood based activated carbon for wine purification 1.Production process 1.Choosing raw material 2.Sieving the raw material 3.Drying 4.Adding the food grade phosphoric acid solution and catalyst 5.Carbonized and activation 6.Testing 7.Acid washing 8.Water washing 9.Testing 10.Drying and crushing 11.Packing 2.Specification Methylene blue decoloration: 20ml/0.1g 300mg/g Caramel decolorizing: 140% Specific surface area: 1350m2/g Iron content: 200ppm Ash content: 3% Moisture content: 10% Mesh size: 200 mesh or 325 mesh More information and latest price please contact ann free. Or call me :0086-13767188564 20kg/bag 10tons/20"fcl 20tons/40"gp