What is the difference between Roasting and Calcination

1.	What is the difference between Roasting and Calcination
Answer» Calcination-it is the process of heating a carbonate ore in limited supply of air in order to obtain a metal oxide,roasting-it is the process of heating a sulphide ore in unLimited supply of air so as to obtain metal oxide.(these metals oxides can be further reduced to obtain free metal.)

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