Now showing items 1-7 of 7

    • Adsorbent assisted drying of spiral and flotation coal fines 

      Erlank, Ruan (North-West University (South Africa)., 2021)
      Collieries inevitably have ever-increasing wet coal fines, which cannot be sold since it is difficult to handle, has a consequently lower heating value and relates to higher transportation costs. Recently, due to the energy ...
    • Application of a magnetic cyclone on a magnetite dense medium separation process 

      Rust, J.J. (North-West University (South Africa), 2020)
      The face of coal supply and demand is ever-changing, with the demand for clean coal rising and with a dwindling supply of high quality ore. Methods to efficiently clean the coal of worsening run-of-mine quality are ...
    • Coal washability determination using RhoVol technology 

      Botlhoko, Shirley Boitshepo (North-West University (South Africa)., 2023-10)
      Density is one of the key properties of coal and provides information about its physical and chemical composition. Washability analyses (or densimetric information) are used to specify the yield and quality of clean coal ...
    • A comparison between high airflow drying and adsorption assisted drying for the dewatering of fine coal 

      Van Rensburg, M.J. (North-West University (South Africa), 2019)
      Development in the fossil fuel sector should be an on-going process to promote sustainability, while reducing the environmental footprint. It is important to improve operations in the mining sector to ensure that coal is ...
    • The dry beneficiation of South African small coal in a dense medium fluidized bed 

      Hughes, N. (North-West University, 2018)
      Conventionally, wet processing was preferred to beneficiate coal based on its sharp separation efficiency; however, the excessive process water constraint is an extreme drawback and proves that wet beneficiation is currently ...
    • Simulation and control of a small scale sodium sulphate salt splitting plant 

      Bijzet, Johannes Ferdinand (North-West University (South Africa)., 2022)
      Base metal refineries produce sodium sulphate solutions as a waste product in the precipitation step. The solution that is formed generally has a concentration of around 100 g Na2SO4/L. Discharging solutions with such high ...
    • Winnowing as a dry separation method for fine coal 

      Morgan, L. (North-West University (South Africa), 2020)
      Dry coal processing is fast becoming favoured as a fine coal beneficiation technique. The decline in suitable good-quality coal, as well as the ongoing decrease in usable process water, makes dry beneficiation of the fine ...