What is calcination nd roasting ?
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the sulphide ores are first converted into oxides by heating strongly in excess of air. this process is known as roasting.
the carbonate ores are changed into oxides by heating strongly in limited air . this process is known as calcination.
the carbonate ores are changed into oxides by heating strongly in limited air . this process is known as calcination.
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what is calcination & roasting
Answer =>
Calcination
The process in which the ore for hydroxides, carbonates etc are heated strongly in the absence of air
Roasting =>
The process of heating the ore in a regular supplly of air in the furnace at a temperature below the melting point of the metal
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