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Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt

Pratima Meshram, Uday Prakash

2020encoppernickelcobaltleachingorganic acids

Abstract

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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 effects 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 ◦C) temperature and 15% pulp density with 2 N citric acid using <45 µm 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.

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Cite This Work

@article{0015a9a6-7051-4c44-8fd1-1c3dc5e81b6e,
  title={Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt},
  author={Pratima Meshram and Uday Prakash},
  year={2020},
  language={en}
}
TY  - JOUR
TI  - Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt
AU  - Pratima Meshram
AU  - Uday Prakash
PY  - 2020
LA  - en
ER  -

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