SHYERU ☆☆☆☆☆☆☆ HELP ME ROASTING AND CALCINATION
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roasting means strong heating in presence of air while in Calcination strong heating in absence of air
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Roasting is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities.
Calcination is the process of heating the ore below its melting point an absence of air to remove volatile impurities like arsenic etc.
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