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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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Taskinen, Pekka
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 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
- 2022Impact of recently discovered sodium calcium silicate solutions on the phase diagrams of relevance for glass-ceramics in the Na2O-CaO-SiO2 systemcitations
- 2022Critical evaluation of CuSO4-H2O system up to solubility limit, from eutectic point to 373.15 Kcitations
- 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
- 2020Integrating flotation and pyrometallurgy for recovering graphite and valuable metals from battery scrapcitations
- 2020Integrating flotation and pyrometallurgy for recovering graphite and valuable metals from battery scrapcitations
- 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
- 2019Impact of MgO and K2O on Slag-Nickel Matte Equilibriacitations
- 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
- 2018Experimental investigation and thermodynamic re-assessment of the ternary copper-nickel-lead systemcitations
- 2018Properties of Na2O–SiO2 slags in Doré smeltingcitations
- 2018Precious Metal Distributions in Direct Nickel Matte Smelting with Low-Cu Mattescitations
- 2018The Influence of Aluminum on Indium and Tin Behaviour during Secondary Copper Smeltingcitations
- 2018Hydrometallurgical approach for leaching of metals from copper rich side stream originating from base metal productioncitations
- 2017Thermal stabilities and properties of equilibrium phases in the Pt-Te-O systemcitations
- 2016Determination of thermodynamic properties of Ca4Fe9O17 by solid state EMF methodcitations
- 2015Electrochemical study on the Ag-Sb system by advanced experimental methodcitations
- 2015Experimental thermodynamic study on the Ag-Sb system at elevated temperatures
- 2014Thermodynamic properties of equilibrium phases in the Ag-Cu-S system below 500 K:Experimental studycitations
- 2014Investigation of the freeze-lining formed in an industrial copper converting calcium ferrite slagcitations
- 2013Experimental Study on the Phase Diagram of the Fe-O-S Systemcitations
- 2013Experimental thermodynamic study of intermetallic phases in the binary Ag-Te system by an improved EMF methodcitations
- 2011Thermodynamic investigation of intermetallic phases in the binary system Ag-Te
- 2010Sulfide Mineralogy - Literature Review
- 2010Densities of Molten and Solid Alloys of (Fe, Cu, Ni, Co)-S at Elevated Temperatures - Literature Review and Analysis
Places of action
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article
Iron activity measurements and spinel-slag equilibria in alumina-bearing iron silicate slags
Abstract
<p>Alumina is a common substance deporting in copper smelting slags when various secondary copper fractions, e.g. e-scrap or WEEE, are used as feedstock as such or along with primary sulphide concentrates. Properties of iron-silicate slags at high alumina concentrations, in the iron-alumina spinel saturation, have been studied at 1300 °C by a high temperature equilibration-quenching method combined with EPMA (electron probe microanalysis) phase composition data from the polished sections. The equilibrations were performed in fixed oxygen activity with platinum or palladium powder, which dissolved iron from the slag and generated a heterogeneous equilibrium system, characterised by the general equilibrium criterium in isothermal and isobaric conditions, as. μ<sub>alloy</sub>(Fe) = μ<sub>slag</sub>(Fe) = μ<sub>spinel</sub>(Fe). This criterium was used for measuring experimentally iron activities of molten silicate slags. The locations of the spinel-liquid slag tie-lines were also determined in the oxygen partial pressure range of 10<sup>−6</sup>–10<sup>−10</sup> atm. A comparison with the recent critical thermodynamic assessments of the Fe–O–Al<sub>2</sub>O<sub>3</sub> system indicates that the iron-alumina spinel-corundum phase boundary in silica-containing systems as a function of oxygen partial pressure is too steep and thus the assessed databases do not match with the experimental data of this study. The liquid slag domain from silica to iron oxide saturation is also smaller than expected earlier, as the spinel primary phase boundary locates at higher silica concentrations than e.g. obtained in the assessments of the Mtox database.</p>