define roasting.......
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Roasting Definition: Roasting is a process in metallurgy in which a sulfide ore is heated in air. The process may convert a metal sulfide to a metal oxide or to a free metal.
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Roasting is a process in metallurgy in which a sulfide ore is heated in air. The process may convert a metal sulfide to a metal oxide or to a free metal.
Ex - Ex- ZnS + Heat - ZnO + SO2
Example: Roasting ZnS may yield ZnO; roasting HgS may yield free Hg metal
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