1. Product description Inert ceramic balls are used supporting and covering catalyst for reactors in oil refinery, chemical, fertilizer, natural gas and environment protection industries, it can improve the distribution of gas and liquid; protect the catalyst from shocking by the rushing fluids, having the advantages of high strength, high stabilities to chemical and thermal circumstances. It can resistant to acid alkali, salt and all organic solvents. 2. Technical specification Al2o320-24 % Al2o3+sio2 90 % Fe2o31 % Leachable iron < 0.01% Size (diameter)19 mm Water absorption0.5 % Acid resistance98 % Alkali resistance80 % Thermal resistance1300 Crushing strength3000 n/pcs Bulk density1350 kg/m3. 1000 kg/pallet Size: 110cm*110cm*100cm