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classifier ore answer

Dec 06, 2019·Answer: Leaching: Bauxiteorecontains FeO, SiO 2, TiO 2 as impurities . The powderedoreis treated with a concentrated solution of NaOH at 473 – 523 K and 35 – 36 bar pressure when Al 2 O 3 dissolves in alkali to form soluble complex while the impurities do not react and can be removed by filtration. Question 44

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