Now showing items 1-3 of 3

    • Membrane based separation of nitrogen, tetrafluoromethane and hexafluoropropylene 

      Bissett, Hertzog (North-West University, 2012)
      Pure fluorocarbon gases can be sold for up to 30 USD/kg, if they were manufactured locally. Due to the absence of local demand, South Africa at present has less than 0.3 % of the fluorochemical market and most fluoro–products ...
    • Recovery of valuable products from polytetrafluoroethylene (PTFE) waste 

      Van der Walt, Izak Jacobus (North-West University, 2007)
      The disposal of PTFE waste presents a global problem from both an ecological and economical perspective. This study was performed to address this problem as well as to understand the mechanism according to which PTFE is ...
    • The separation of light lanthanoids through pertraction 

      Daniels, Tjaart (North-West University (South Africa), 2019)
      The light lanthanoid elements (57-60) are the most common of the f-block elements. These elements are plentiful and upon their discovery, the specified application of individual elements have grown alongside our ability ...