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    • The dry beneficiation of duff coal in a dense medium fluidised bed 

      Langner, Daniël Johannes (North-West University (South Africa) , Potchefstroom Campus, 2016)
      Traditionally wet beneficiation is the predominant method in order to beneficiate coal due to its sharp separation efficiency; however large quantities of water are required in order to process the coal. Water scarcity, ...