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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Chen, Min
Swerim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Cycling of block copolymer composites with lithium-conducting ceramic nanoparticlescitations
- 2023Three-dimensional cleat scale modelling of gas transport processes in deformable fractured coal reservoirscitations
- 2023Novel fluxing strategy of copper matte smelting and trace metals in E-Waste recyclingcitations
- 2021Precious Metal Distributions Between Copper Matte and Slag at High PSO2 in WEEE Reprocessingcitations
- 2021Handling trace elements in WEEE recycling through copper smelting-an experimental and thermodynamic studycitations
- 2020Recovery of Precious Metals (Au, Ag, Pt, and Pd) from Urban Mining Through Copper Smeltingcitations
- 2019Sulfation Roasting Mechanism for Spent Lithium-Ion Battery Metal Oxides Under SO2-O2-Ar Atmospherecitations
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article
Handling trace elements in WEEE recycling through copper smelting-an experimental and thermodynamic study
Abstract
<p>Recycling of waste electrical and electronic equipment (WEEE) is attracting increasing attention, due to the presence of valuable metals and the risk of environmental emissions associated with WEEE disposal. In this study, the distributions of trace elements (Ag, Ni, Co, and Sn) between copper alloy and magnetite/wüstite-saturated iron silicate slags were investigated at 1200–1300 °C and P<sub>O2</sub> of 10<sup>-10</sup>-10<sup>-6.5</sup> atm, simulating the conditions of WEEE reprocessing through secondary copper smelting and converting. The high-temperature isothermal equilibration experiments were conducted in synthesized magnetite/wüstite crucibles under controlled CO-CO<sub>2</sub> atmospheres followed by quenching in an ice-water mixture. The phase compositions and concentrations of the trace elements in copper alloy, magnetite/wüstite, and slag were determined by Electron Probe X-ray Microanalysis and Laser Ablation-High-Resolution Inductively Coupled Plasma-Mass Spectrometry. The distribution coefficients of all investigated trace elements between copper alloy and slag increased with decreasing oxygen partial pressure and increasing temperature. Ag distributed strongly into the copper alloy at all conditions, whereas Co mainly deported into the slag phase. Ni and Sn were concentrated in the alloy at lower P<sub>O2</sub> and in the slag at higher P<sub>O2</sub>. Varying concentrations of Ni, Co, and Sn were also dissolved into the solid magnetite/wüstite phase.</p>