Hall-Heroult's process is given by :
Thermodynamic principle of Metallurgy -
also
- wherein
K is equilibrium constant.If for a reaction is negative reaction is fusible.
Minerals -
The various compounds of metals which occur in the earth's crust and are obtained by mining are called minerals
- wherein
In the earth crust order of abundance of elements is OSiAlFe
Reduction of Metal Oxide to Metal -
The crude metal is obtained when the roasted ore or calcined ore is put to reduction by using a suitable reducing agent.
- wherein
HgO+HgS 3Hg+SO2
As we have learnt in Hall - Heroult's process
The following reaction occurs:
At cathode :
At anode :
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