Although thermodynamically feasible, in practice, magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Why?

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Solution

Reduction of Aluminum
Temperatures below the point of intersection of $A l_{2} O_{3} and M g O$ in Ellingham diagram, magnesium can reduce alumina. But the process will be uneconomical as magnesium is much costlier than alumina.

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Q. Which of the following process is used in extractive metallurgy of magnesium?

Q. Although thermodynamically feasible, in practice, magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Why ?

Though thermodynamically feasible, why is it uneconomical to use Magnesium metal for the reduction of alumina?

Q. Assertion :Magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Reason: MgO curve lies above

A l_{2} O_{3}

curve in Ellingharn diagram.

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Although thermodynamically feasible, in practice, magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Why?

Reduction of Aluminum Temperatures below the point of intersection of Al2O3 and MgO in Ellingham diagram, magnesium can reduce alumina. But the process will be uneconomical as magnesium is much costlier than alumina.

Reduction of Aluminum
Temperatures below the point of intersection of $A l_{2} O_{3} and M g O$ in Ellingham diagram, magnesium can reduce alumina. But the process will be uneconomical as magnesium is much costlier than alumina.