For extraction of aluminium from bauxite the ore is purified by treating it with an alkali give the balanced equation
Answers
The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide). ... The aluminium oxide must be purified before it can be refined to aluminium metal.Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH)3), boehmite (γ-AlO(OH)) and diaspore (α-AlO(OH)), mixed with the two iron oxides goethite and haematite, the aluminium clay mineral kaolinite and small amounts of anatase (TiO2) and ilmenite (FeTiO3 or FeO.TiO2).
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Answer: economically the most important ore for the extraction of aluminium metal is bauxite impure hydrated aluminium oxide AL2O3 2H2O)3 from which al metal is obtained
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