Adsorption tests were conducted with a quaternary ammonium group ion exchange resin to determine the equilibrium adsorption of precious- and base metals. The resin used is a macroreticular polystyrene type 1 strong base ...

Analysis of the structure of the froth in a flotation cell can be used to assess the performance of the cell. There is a close relationship between the bubble size distribution in the pulp and froth phases. Recent improvements ...

The search for new technologies to remove hazardous metals from wastewaters has focused attention on the metal binding abilities of different biological materials. Various biomaterials have shown promise as sorbents to ...

The feasibility of using ultrasound to enhance the elution of three ion exchange resins was investigated. A laboratory-scale elution column immersed in an ultrasonic bath was used to investigate three elution systems. ...

The removal of Pb, Cu, and Cd ions from diluted solutions by sorption onto clinoptilolite, together with magnetite-Fe(OH)3 coprecipitation and magnetic filtration, was studied at laboratory scale. Low concentrations of ...

Acid mine water from a South African gold mine was characterised and treated by the precipitation of heavy metals with lime and sulphides, followed by ion exchange. The novelty of the proposed process lies in the use of ...

The acoustic signals emitted from a laboratory-scale ball mill were used for the estimation of the comminution of two complex sulphide ores, viz. Merensky and UG2 ores from the Bushveld Igneous Complex in South Africa. The ...

Pulsation of air sparged into the flotation cell of a complex sulphide ore led to vibration of the bubbles in the pulp, and enhanced bubble-particle collision. The thinning and destruction of the intervening thin liquid ...

The effect of dry and wet grinding on the flotation of complex sulfide ores from the Merensky Reef in South Africa was investigated. Topographical examination of the ground particle surfaces by scanning electron and atomic ...