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Three Steps Involved In Mining Bauxite

Figure 1 Typical processes involved in surface mining of bauxite deposits3 Bauxite ore is then refined into alumina Al 2 O 3 by Bayer process where these aluminiumcontaining minerals are dissolved in hot sodium hydroxide NaOH6 The insoluble solids bauxite residue mud and sand are washed or partially neutralized using CO 2

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