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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
Experimental phase equilibria and liquidus of CaO-Al2O3-SiO2-Na2O-B2O3 slags relevant to e-waste processing
Abstract
Ternary master slags based on the CaO-Al2O3-SiO2 system with CaO/SiO2 (C/S) ratio 0.3 to 1.0 were doped with 5 to 20 wt.% of anhydrous borax (Na2B4O7) to study the phase equilibria of the quinary CaO-Al2O3-SiO2-Na2O-B2O3 slag system. This research uses the well-known method of high temperature equilibration of slags followed by rapid quenching. The quenched slag samples were examined using a Scanning Electron Microscope (SEM) and Electron Probe Microanalysis (EPMA) technique to determine the structure and to analyse the chemistry of the phases in equilibrium. The primary phase of 15 slag compositions was identified and the liquidus temperature of the slags were determined within an uncertainty range of ±10-20 °C by using an iterative approach. Overall, the liquidus temperature of slags decreased with increasing borax content with the highest liquidus reduction observed in slags having a C/S ratio 0.3 and the lowest in the slag series with C/S ratio of 1.0. A comparative analysis of the effect of borax, Na2O and B2O3 on the liquidus temperature of slags is discussed. Results indicated that although borax reduces the liquidus of ternary CaO-Al2O3-SiO2 slags, the addition of B2O3 and Na2O individually showed more prominent effects than borax in reducing the slag liquidus