METHODS OF REFINING

METHODSOFREFINING:

(It depends on whether commercial or high purity is wanted).
Chemical methods:
1)Fire refining2)Refining via volatile compound
(In this chemical reactions are involved).
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Electro-chemical method:
3)Electrolysis(Electro refining)
(In this electrochemical reactions are involved).
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Physical methods:
4)Liquation5)Selective distillation of impurities
6)Zone refining.
(In this no chemical or electrochemical reactions are
------------------------------------------------------------------involved).