Browsing Research Output by Subject "Fine coal"

Now showing items 1-4 of 4

    • Column leaching of fine coal tailings: impact on environment and thickener operation 

      Moyakhe, Dumisane; Fosso-Kankeu, Elvis; Campbell, Quentin (EARET, 2018)
      The coal mining sector is synonymous with generating large quantities of waste. A comprehensive fraction of the waste is classified as fines (-500 µm) and ultrafine (-100 µm) particles, which accounts eleven per cent ...

    • Destoning of fine coal in a fluidized bed 

      Le Roux, Marco; Campbell, Quentin; Langner, Danie (Springer, 2016)
      Water scarcity is driving the development of dry coal beneficiation processes. A lot of research has gone into the development of dry dense medium fluidized bed technology (DMFB), especially in China. However, these processes ...

    • Fine coal dewatering using high airflow 

      Le Roux, M.; Campbell, Q.P.; Van Rensburg, M.J. (Taylor & Francis, 2014)
      Fluidized bed drying is currently receiving much attention as a dewatering option after the beneficiation of fine coal. Apart from concerns about safety and combustion, the operating costs can be high if very high gas or ...

    • Moisture transport during contact sorption drying of coal fines 

      Van Rensburg, M.J.; Le Roux, M.; Campbell, Q.P.; Peters, E.S. (Taylor & Francis, 2020)
      Studies have shown that contact sorption drying is a feasible technique to dewater fine (+0.15mm–0.5mm) and ultra-fine (−0.15 mm) coal. The aim of this article is to further investigate the drying mechanism involved. It ...