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Discuss the process of roasting with sui...

Discuss the process of roasting with suitable example.

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Sulphide ores are generally roasted in reverberatory furnace in free supply of air below melting point. Ore changes to oxide with larger surface area and volatile impurties are removed.
`2ZnS+3O_(2)overset(Delta)(to)2ZnO+2SO_(2)`
`2PbS+3O_(2)overset(Delta)(to)2PbO+2SO_(2)`
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AAKASH INSTITUTE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Try Yourself
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  3. Discuss the process of roasting with suitable example.

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  4. During roasting the temperature should be kept below its m.p. Why ?

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  14. What is the impure form of zinc commonly known as ?

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  15. Name and formulate the reagent used for the leaching of argentite.

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  16. What is the hydrometallurgy of silver or gold commonly known as ?

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