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    • The processing of wax and wax additives with supercritical fluids 

      Schwarz, Cara Elsbeth (Stellenbosch : University of Stellenbosch, 2005-12)
      Waxes have many potential uses but large-scale application is hampered by their virtual insolubility. By grafting the wax with a polyethylene glycol segment to form an alcohol ethoxylate, the solubility of the wax in ...

    • Contributions to an improved understanding of the flotation process 

      O'Connor, Cyril Thomas (Stellenbosch : University of Stellenbosch, 2005-12)
      This dissertation covers research carried out over the past 25 years in the area of flotation. Flotation is one of the most widely used processes in the beneficiation of minerals. The process is characterized by a number ...