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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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Pownceby, Mark
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Topics
Publications (14/14 displayed)
- 2023Experimental phase equilibria and liquidus of CaO-Al2O3-SiO2-Na2O-B2O3 slags relevant to e-waste processing
- 2023Deportment of metals from e-waste PCBs towards alloy and slag phases during smelting using CaO-Al2O3-SiO2-B2O3 slagscitations
- 2022Effect of B2O3 on the Liquidus Temperature and Phase Equilibria in the CaO–Al2O3–SiO2–B2O3 Slag System, Relevant to the Smelting of E-wastecitations
- 2021Phase equilibria study of CaO-Al2O3-SiO2-Na2O slags for smelting waste printed circuit boardscitations
- 2021Characterisation of SFCA phases in iron ore sinter by combined optical microscopy and electron probe microanalysis (EPMA)
- 2021Characterisation of SFCA phases in iron ore sinter by combined optical microscopy and electron probe microanalysis (EPMA)
- 2021Experimental determination of liquidus temperature and phase equilibria of the CaO-Al2O3-SiO2-Na2O slag system relevant to e-waste smeltingcitations
- 2021Beneficiation of low-grade, goethite-rich iron ore using microwave-assisted magnetizing roastingcitations
- 2021Automated Optical Image Analysis of Iron Ore Sintercitations
- 2019Characterisation of phosphorus and other impurities in goethite-rich iron ores – Possible P incorporation mechanismscitations
- 2016Development of a niobium-doped titania inert anode for titanium electrowinning in molten chloride saltscitations
- 2014Effect of sintering conditions on the formation of mineral phases during iron ore sintering with New Zealand ironsand
- 2013In situ X-ray and neutron diffraction studies of silico-ferrite of calcium and aluminium iron ore sinter phase formation
- 2011In situ diffraction studies of phase formation during iron ore sintering
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article
Phase equilibria study of CaO-Al2O3-SiO2-Na2O slags for smelting waste printed circuit boards
Abstract
Phase equilibria of CaO-Al2O3-SiO2-Na2O slags were studied by thermal equilibration and quenching. The primary phases of the quenched slags were identified, and their equilibrium compositions determined by electron probe microanalysis. Liquidus temperatures of the slags were bracketed within an uncertainty of ± 10–20°C. Anorthite (CaO·Al2O3·2SiO2), gehlenite (2CaO·Al2O3·SiO2), pseudowollastonite (CaO·SiO2), and larnite (2CaO·SiO2) were observed as primary phases. Progressive doping by Na2O substantially changed the slag liquidus temperature, shifting the primary phase from anorthite to pseudowollastonite and larnite, and gehlenite to larnite. The liquidus temperature decreased significantly with increasing Na2O in slags with CaO/SiO2 (C/S) ratios of 0.3 and 0.6, while the liquidus temperature increased for slags with a C/S ratio of 1.0. The solid solubility of Na2O in the phases was quantified. Finally, the relevance of the phase equilibria study of the CaO-Al2O3-SiO2-Na2O system was discussed with regard to the optimum design of smelting with a focus on value recovery from e-waste.