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प्रश्न
Write the principle behind the following methods of refining:
Vapour-phase refining
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उत्तर
Vapour-phase refining:
Vapour-phase refining is the process of refining metal by converting it into its volatile compound and then, decomposing it to obtain a pure metal. To carry out this process,
(i) the metal should form a volatile compound with an available reagent.
(ii) the volatile compound should be easily decomposable, so that the metal can be easily recovered. This method is used for refining nickel, zirconium and titanium.
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संबंधित प्रश्न
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
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Describe a method for refining nickel.
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Zone refining is based on the principle that ______.
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