The effect of the stability and rheological properties of magnetite dense medium on the separation performance of a 6″ dense medium cyclone (DMC) is studied
Efficient filtration of fine kaolin particles plays a crucial role in processing of raw kaolin to a marketable product. Oftentimes, filtration is the rate controlling
Aqueous pressure oxidation at low temperature, although desirable from a process engineering and operations point of view, presents unique problems when temperatures approach 160°C (320°F).
Roasting of refractory gold ores has the primary goal of oxidizing sulfides and organics to improve gold recoveries prior to leaching. Commercial installations currently utilize
Gold in primary deposits is generally recovered by dissolution in dilute cyanide solution followed by recovery from solution using zinc cementation or carbon adsorption. The
Increased recycling of waste paper has been emphasized in recent years in both the USA and Canada for environmental and economic reasons. Removal of ink
hile particle size is universally acknowledged to be important in optimizing industrial copper sulfide rougher flotation circuits, many of the various interactions that do occur
The interest in using halogens for extracting precious metals from ores has increased due to changes in ore characteristics, environmental concerns and regulations. The rediscovery
The dissolution behavior of silver and copper from silver/copper alloys in ammoniacal solutions has been investigated using a rotating disc. Oxygen was used as an
Hydrometallurgical treatment of chalcopyrite by sulfuric acid based systems for primary recovery of copper is limited by the refractory nature of the mineral (Bartlett, 1973;