CUPOLA FURNACE SLAG - ITS ORIGIN, PROPERTIES AND UTILIZATION

摘要

Cupola furnace is the most widely used furnace for cast iron melting. Typical, and main secondary product from cast iron production is a cupola furnace slag. Its production is approximately from 40 to 80 kg per one tone of the cast iron. The sources of the formation of the cupola slag are the slag forming additives, the coke ash, the metal batch impurities, the molten parts of the refractory lining. The basic, major components of the cupola slag are CaO, SiO_2 and Al_2O_3, with minor components being MgO, FeO, MnO and P_2O_5.