Metal Extraction and Bioleaching

removal were 84.0% and 84.8%, respectively. These results showed that the optimized transition-metal-catalyzed PAA processes provide a highly efficient approach for the advanced treatment of real leachate MBR effluent.

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Gold mining tailings are increasingly recognized as both a major environmental liability and a potentially valuable secondary resource. This review synthesizes peer-reviewed studies and industrial reports published between 2000 and 2026 to evaluate gold tailings from three interconnected perspectives: mineralogical an…

An integrated pyro-hydrometallurgical technology for the processing of pyrite-cobalt concentrates has been developed based on sodium carbonate-carbon reductive smelting followed by aqueous treatment of the slag-matte melt. Thermodynamic modeling of the Fe-Ni-Co-Cu-O-S system demonstrated that at 1450-1500 °C the Na₂CO…

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Pyrometallurgical extraction of metallic copper from copper concentrates generates several by-products, among which copper slag constitutes one of the most voluminous solid residues. These slags are generally composed of iron oxides, silica, calcium oxide, alumina, and varying amounts of unrecovered copper. Despite th…

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Spent lithium batteries have become a strategic secondary resource for cobalt, nickel, manganese, and lithium due to the growth of the electronics industry. This paper investigates the effect of iron chloride salts on the dissolution rate of Co, Ni, and Mn in acidic chloride media. The study compares the leaching perf…

This study used a solvent extraction technique with AcorgaOPT5510 extractant in kerosene to examine the extraction of copper ions from the actual leach solution produced after leaching malachite ore in sulfuric acid solutions. On the Cu/Fe separation factor and the effectiveness of copper extraction, the impacts of si…

Flotation of mixed copper oxide–sulfide ores remains challenging due to low natural floatability of oxide minerals and complex interplay between sulfidization and collector adsorption. This study investigated the combined effect of NaHS-assisted sulfidization and 2,5-dimercapto-1,3,4-thiadiazole (DMTD), an azole-based…