Question

what is the significance of leaching in the extraction of aluminum

Answer 1

In the extraction of aluminium, the significance of leaching is to concentrate pure alumina (Al2O3) from bauxite ore. Bauxite usually contains silica, iron oxide, and titanium oxide as impurities

Answer 2

Hey !!

Impurities like SiO₂ etc are removed by using NaOH solution and pure alumina is obtained.

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