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Abstract
The distribution coefficients of Co, Ni, Ag, Au, Pd, and Fe at low concentrations between liquid copper and molten white metal (low-iron copper matte, ‘Cu2S’) were investigated experimentally as a function of temperature (1250–1350°C) and SO2 partial pressure (0.01–1 atm). The experimental technique involved samples equilibration at controlled temperature and gas atmosphere, followed by quenching and subsequent elemental analysis of equilibrium phases with electron probe X-ray microanalysis and laser ablation-inductively coupled plasma-mass spectrometry. The distribution coefficient of silver, nickel, gold and palladium between liquid copper and white metal indicated that they favour the blister copper whereas cobalt and iron distribute more to the white metal. The distribution coefficient of nickel, e.g. increased from 2.1 at 0.1–1.0 atm PSO2 and 1250°C to 3.2 at 1350°C. The distribution coefficients were only slightly dependent on temperature. The relatively strong dependence of the distribution coefficient of cobalt on PSO2 was discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 313-323 |
| Number of pages | 11 |
| Journal | Mineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy |
| Volume | 130 |
| Issue number | 4 |
| Early online date | 23 Jul 2019 |
| DOIs | |
| Publication status | Published - 2 Oct 2021 |
| MoE publication type | A1 Journal article-refereed |
Funding
This work was supported by European Institute Innovation and Technology (EIT) Raw Materials-KIC [grant number SGA2017/1]. Boliden Harjavalta (Finland), Eramet (France) and EIT-Raw Materials KIC (EU Horizon 2020) through NewEco project (grant # EIT/RAW MATERIALS/SGA2017/1) are gratefully acknowledged for the financial support received by Aalto University. The authors are indebted to GTK (Geological Survey of Finland) for the EPMA analyses.
Keywords
- circular economy
- converting
- copper alloy
- Copper matte
- e-scrap
- fire refining
- thermodynamics
- trace elements
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Dive into the research topics of 'Distribution of Co, Fe, Ni, and precious metals between blister copper and white metal'. Together they form a unique fingerprint.Projects
- 1 Finished
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NewEco: Towards a New European industrial ecosystem for strategic metals production
Taskinen, P. (Principal investigator), Holland, K. (Project Member), Kekkonen, M. (Project Member), Virtanen, O. (Project Member) & Sukhomlinov, D. (Project Member)
01/01/2016 → 31/12/2017
Project: EU: Framework programmes funding
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