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What is Roasting?
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Explanation:
Roasting is the heating of an ore in the excess of oxygen to form that metal oxide and non metal oxide
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Roasting:
1.Roasting is a pyrochemical process which the ore is heated in the presence of oxygen or air below its melting point.
2.The products like metal oxide from sulphide ore
obtained in the process also are in solid state.
3.Generally reverberatory furnace is used for roasting.
4.During roasting, moisture and non metallic impurities are also removed as volatile gases.
5. This process is generally applied to sulfide minerals.
2ZnS(s) + 302(g) _____ 2ZnO(s) + 2SO2 (g)
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