Saturday, August 11, 2012

The various methods for Purification or Refining used are as follows:

1.                      Liquation
2.                      Distillation
3.                      Poling
4.                      Oxidation
a.       Cupellation
b.      Bessemerisation
5.                      Zone – Refining
6.                      Electro Refining
7.                      Van – Arkel Method

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