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Recovery of dissolved platinum group metals from a pregnant copper sulphate leach solution by precipitation
(Stellenbosch : Stellenbosch University, 2014-04)
ENGLISH ABSTRACT: In Base Metal Refineries (BMRs), the copper sulphate leach solution produced during the final pressure leaching stage contains impurities such as selenium and tellurium, as well as other precious metals ...
Leaching of Ni-Cu-Fe-S Peirce Smith converter matte : effects of the Fe-endpoint and leaching conditions on kinetics and mineralogy.
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: In a first stage atmospheric leach at the Lonmin Marikana base metals refinery, nickel-copper-iron-sulphur Peirce Smith converter matte is leached in recycled electrolyte from the electrowinning section. ...
Leaching of nickel laterite with a solution of ammonia and ammonium carbonate utilizing solids liquid separation under pressure
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Leaching of nickel laterite was conducted with a solution of ammonia and ammonium carbonate in a closed vessel. The vessel used in this study was designed to leach and perform solid-liquid separation at ...
The simulation of a transient leaching circuit
(Stellenbosch : University of Stellenbosch, 1995-12)
The hydrometallurgical leaching of sulphide concentrates was introduced in the 1950's. Generally the leaching mechanisms of these processes are not understood fundamentally. The reasons for this are the inherently complex ...