| 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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Pownceby, Mark
in Cooperation with on an Cooperation-Score of 37%
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
Beneficiation of low-grade, goethite-rich iron ore using microwave-assisted magnetizing roasting
Abstract
Microwave-assisted reduction roasting of a goethite-rich, reject iron ore waste stream (−2 mm) was used to produce a high-grade concentrate. Reduction roast experiments were conducted at 370 °C, 450 °C, 600 °C and 1000 °C under gas atmospheres of 30:70 and 40:60 CO/CO2, with a soak time of 20 min. Goethite was converted to hematite above 370 °C under both gas mixtures while at the higher roasting temperatures, increasing amounts of magnetite formed. Roasting conditions for the best conversion of goethite to synthetic magnetite were 600 °C in a gas atmosphere of 40:60 CO/CO2, with a soak time of 20 min. Laboratory-based magnetic separations in a Davis tube indicated that a blast furnace grade (+62 wt% Fe) pellet concentrate could be produced with an acceptable iron recovery of > 88 wt%. Under both gas atmospheres, a higher reduction temperature of 1000 °C achieved a greater conversion of goethite to magnetite but resulted in over-reduction and the generation of wüstite, fayalite and Fe-rich spinel phases with different magnetic susceptibilities that are expected to make subsequent beneficiation difficult. Further processing to optimize the microwave-assisted magnetizing roast and the magnetic separation conditions can be expected to maximize the efficiency of upgrading the iron content in low grade goethite-rich iron ores.