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Precious metal recoveries in secondary copper smelting with high-alumina slags

Katri Avarmaa, Hugh O’Brien

2020Englishmetallurgymaterials sciencesustainabilityrecyclingelectronic wastecopper smelting

Abstract

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Waste electrical and electronic equipment (WEEE) represents a significant urban resource for precious metals. To maximize the recoveries and sustainable use of these metals, their behavior needs to be characterized in the secondary copper smelting of WEEE. The current study experimentally determined the distributions of gold, silver, platinum and palladium between copper alloy and FeOx–SiO2–Al2O3/FeOx–SiO2–Al2O3–CaO slags (L Cu/s[M] = [M]Copper/[M]Slag) over the oxygen partial pressure range of 10−5 – 10−10 atm at 1300 °C. In addition, the equilibria of copper alloy, slag and Al–Fe spinel system are presented and discussed. The experiments were conducted employing an equilibration—drop-quenching technique followed by major element analysis with Electron Probe MicroAnalysis (EPMA) and trace element analysis.

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Cite This Work

@article{0c1fab39-afeb-40f3-a41c-d7727d72b640,
  title={Precious metal recoveries in secondary copper smelting with high-alumina slags},
  author={Katri Avarmaa and Hugh O’Brien},
  year={2020},
  language={English}
}
TY  - JOUR
TI  - Precious metal recoveries in secondary copper smelting with high-alumina slags
AU  - Katri Avarmaa
AU  - Hugh O’Brien
PY  - 2020
LA  - English
ER  -

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