Roasting Calcination

Roasting	Calcination
i.              In this process, the ore is heated strongly in the presence of air. ii.            In this process, sulphide ore is converted into metal oxide. iii.           During this process SO4 is given out.	i.              In this process, the ore is heated strongly in the limited supply of air. ii.            In this process, carbonate ore is converted into metal oxide. iii.           During this process CO2 is given out.