... alkali and acid function 3,can bear high temperature Inert Ceramic Ball stable molecular structure, acid and alkali - resistant, heat-resistance ... stability, low water absorption, high compressive strength, is the ideal catalyst of the carrier is widely used in oil, petrochemicals, fertilizers, ... 98≥98the fastness to alkali(%)≥80≥82≥85≥90≥95Bears the temperature emergency (°C)≥1.30≥200≥500≥700≥800the ...