In the ore Bauxite Al2O3.2H2O there are two significant types – Red Bauxite and White Bauxite. Bayer’s process is applicable for
The Red Bauxite has Fe2O3 as its significant impurity while Silica and TiO2 are lesser. On the other hand, white Bauxite has significantly more Silica than Fe2O3. We employ Bayer’s process with the Red variety of Bauxite! Why??