Seke MD: Optimisation of the selective flotation of galena and sphalerite at Rosh Pinah mine (Prof PC Pistorius, Prof RF Sandenbergh) Vermaak MKG: Fundamental of the flotation behaviour of palladium bismuth tellurides (Prof PC Pistorius) Zietsman J: Interactions between freeze lining and bath in ilmenite smelting (Prof PC Pistorius)