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प्रश्न
What process is used for the concentration of haematite ore?
लघु उत्तरीय
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उत्तर
The process used for the concentration of haematite ore is gravity separation or hydraulic washing, in which the lighter gangue particles are washed away by a stream of running water, while the heavier ore particles settle down. Sometimes, if the haematite is mixed with magnetic impurities, magnetic separation can also be used.
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