Cocksedge, Mark Burden2017-06-082017-06-081993Cocksedge, Mark Burden (1993) Extraction of platinum, palladium and rhodium from tailings by a metal chloride based leach reagent, University of Witwatersrand, Johannesburg, <http://hdl.handle.net/10539/22835>http://hdl.handle.net/10539/22835A Dissertation submitted to the Faculty of Engineering, University of the Witwatersrand Johannesburg, in fulfillment of the requirements for the Degree of Master of Science in EngineeringHigh extractions of the platinum group metals' from a refractory tailings concentrate (PGM Concentration : Pt 81.5ppm, Pd 21.5ppm, Rh 17.5ppm) was achieved after short. low-temperature roasting and subsequent leaching with a zinc chloride based leach reagent containing nitric acid under atmospheric pressure at temperatures from 105-C to 120-C. [Abbreviated Abstract. Open document to view full version]Online resource (79 leaves)enPlatinum group--MetallurgyHydrometallurgyPhysical metallurgyTailings (Metallurgy)Thesis