Main material of acidic, neutral and alkaline lining materials

Acid lining material: tetravalent compound SiO2, ZrO2, etc., siliceous, semi-silica, clay, zirconium, semi-zirconium

Neutral lining materials: trivalent compounds Al2O3, Cr2O3 and strong covalent bond crystalline minerals C, SiC, high aluminum, corundum, chromium, carbon, silicon carbide, silicon nitride, etc.

Alkaline furnace lining materials: divalent compounds CaO, MgO, etc., magnesia, dolomite, magnesia aluminum, magnesia chromium