Hydrometallurgical and Flotation Separation of Copper, Gold, and Base Metals
This research community focuses on the physical and chemical processes used to extract and purify metals from ores, smelting by-products, and electronic waste. The work centers on developing efficient methods to separate valuable metals like copper, gold, zinc, and nickel from complex mineral matrices and industrial residues.
The recurring technical approaches include froth flotation, acid leaching, and selective adsorption. Specific applications involve the recovery of copper from sulfide ores and smelting slag, the extraction of gold from refractory ores, and the processing of nickel laterite. The research also addresses the separation of chalcopyrite and other sulfide minerals, as well as the recovery of metals from waste printed circuit boards. Key reagents and mechanisms studied include sodium oleate, sulfuric acid, and the surface chemistry of mineral particles during separation.
The largest share of the community's output is found in copper research, accounting for 2.5% of all copper research, with 8,033 papers in this group. Iron research follows with a 1.5% share and 6,092 papers, while sulfur research contributes 1.7% and 4,947 papers.
The community comprises 27,468 papers, publishing most frequently in Minerals Engineering, Hydrometallurgy, and Minerals.
Recent work continues to focus on refining flotation and leaching processes, including the stepwise removal of impurities during copper refining, the leaching of pyrite cinder, and the selective flotation of phosphate ores and cassiterite using novel eco-friendly collectors and depressants.