Page 6 - 3. Lesson Notes- Ch-3 Mettalurgy-2
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Fig-a. Electrolytic refining of Cu. Fig b. Shows the reduction of
Anode in size, after electrolysis.
➢ Some common methods which are used for purification of impure
metals are:
• Electrolytic Refining.- (Already discussed above)
• Distillation Method. -This method is useful for purification of those
volatile metals which have low boiling points such as zinc and mercury. ...
• Liquation Method. - Metals with low melting points are usually refined by this
process.
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