| People | Locations | Statistics |
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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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Klemettinen, Lassi
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Oxidation Behavior of AlxHfNbTiVY0.05 Refractory High-Entropy Alloys at 700–900 °Ccitations
- 2023Novel fluxing strategy of copper matte smelting and trace metals in E-Waste recyclingcitations
- 2021Leaching of rare earth elements from NdFeB magnets without mechanical pretreatment by sulfuric (H2SO4) and hydrochloric (HCl) acidscitations
- 2021Feasibility study of producing multi-metal parts by Fused Filament Fabrication (FFF) techniquecitations
- 2021Precious Metal Distributions Between Copper Matte and Slag at High PSO2 in WEEE Reprocessingcitations
- 2021Slag Chemistry and Behavior of Nickel and Tin in Black Copper Smelting with Alumina and Magnesia-Containing Slagscitations
- 2021Handling trace elements in WEEE recycling through copper smelting-an experimental and thermodynamic studycitations
- 2021Distribution of Co, Fe, Ni, and precious metals between blister copper and white metalcitations
- 2021Iron activity measurements and spinel-slag equilibria in alumina-bearing iron silicate slagscitations
- 2020Recovery of Precious Metals (Au, Ag, Pt, and Pd) from Urban Mining Through Copper Smeltingcitations
- 2020Trace element distributions between matte and slag in direct nickel matte smeltingcitations
- 2019Behavior of Ga, In, Sn, and Te in Copper Matte Smeltingcitations
- 2019Sulfation Roasting Mechanism for Spent Lithium-Ion Battery Metal Oxides Under SO2-O2-Ar Atmospherecitations
- 2019Slag Cleaning Equilibria in Iron Silicate Slag–Copper Systemscitations
- 2019Urban mining of precious metals via oxidizing copper smeltingcitations
- 2018Properties of Na2O–SiO2 slags in Doré smeltingcitations
- 2018Precious Metal Distributions in Direct Nickel Matte Smelting with Low-Cu Mattescitations
Places of action
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article
Urban mining of precious metals via oxidizing copper smelting
Abstract
Recycling of precious metals from end-of-life electronics is a key factor for sustainable and efficient raw material usage. Simultaneously with the depletion of natural ore resources, the urban mines are storing increasing amounts of valuable and, more importantly, rare metals. To fulfill the targets of sustainability and move towards circular economy, the liberation of these valuables from wastes back to production and use needs to be improved. This study investigates the recoveries and behavior of gold, silver, palladium and platinum in copper smelting conditions at 1300 °C and pO2 = 10−5–10−7 atm. The investigated system includes a copper alloy with three different type of slags in silica saturation: pure iron silicate, iron silicate with 10 wt% alumina and iron silicate with 10 wt% alumina and 5 wt% lime, providing information on the influence of alumina and lime on precious metal recovery possibilities. A highly advanced equilibration-quenching technique, followed by EPMA and sensitive LA-ICP-MS analyses, has been adopted to execute the experiments. Results show that gold, platinum and palladium are recovered very efficiently in copper, as their distribution coefficients between copper and slag, LCu/s, were greater than 104 under every experimental condition studied and with all slag compositions. Silver distributed 30–60 times more in copper phase than was lost to slag. The addition of alumina into the slag somewhat decreased the distribution coefficient of silver, whereas gold and palladium distribution coefficients were increased. Lime addition improved the recovery of every precious metal (Pt unclear) into the copper phase. The concentrations of platinum in the slags were mainly below the detection limit of the used LA-ICP-MS, providing a minimum distribution coefficient of 106. ; Peer reviewed