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lting process of bauxite

lting process of bauxite

i) Caustic alkali is added to bauxite, to dissolve bauxite ore and obtain a solution of sodium aluminate.ii) Al2O3. 2H2O +2NaOH +heat --- 2NaAlO2 +3H2Oiii) CaF2 adds along with cryolite and alumina. To reduce the high melting point of alumina and to make it a conducting medium .

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