Meshram, Pratima and Prakash, Uday and Bhagat, Lalit and Abhilash, and Zhao, Hongbo and van Hullebusch, Eric D (2020) Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt. Minerals, 10(3) (IF-2.380). p. 290.
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An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids. In the leaching experiments, the eects of organic acid concentrations, pulp density,temperature, and time were investigated. Optimum recovery of 99.1% Cu, 89.2% Ni, 94% Co, and 99.2% Fe was achieved in 9–10 h at 308 K (35 oC) temperature and 15% pulp density with 2 N citric acid using <45 micron particles. Pourbaix diagrams of metal-water-citrate systems were supplemented to examine solubility of ligands at the desired conditions. Furthermore, the leaching mechanism was based on the SEM-EDS (energy-dispersive X-ray spectroscopy) and XRD characterization as well as the leaching results obtained.
|Uncontrolled Keywords:||converter slag; citric acid; leaching; metal-water-citrate system; selectivity|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Dr. Abhilash .|
|Deposited On:||09 May 2020 23:39|
|Last Modified:||05 Aug 2020 13:19|
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