What is roasting and calcination write two difference
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HEY HERE ARE THE DEFINATIONS :)
ROSTING : IT is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities.
CALCNATION : Calcination is the process of heating the ore below its melting point an absence of air to remove volatile impurities like arsenic etc.
MARK IT AS BRAINLIEST PLZ :)
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Hey !!
ROASTING
It is the process of heating the ore below its melting point with excess of air.
Sulphide ore are converted into oxide form.
2Zns + 3O₂ ---(HEAT)--> 2ZnO + 2SO₂↑
Volatile impurities are removed as oxides SO₂ , As₂O₃ etc.
CALCINATION
It is the process of heating the ore below its melting point in the absence or limited supply of air.
Carbonate ores are converted into oxide
ZnCO₃ ---(Heat)--> ZnO + CO₂↑
Water and organic impurities are removed.
Hope it helps you !!
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