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SPRINGER
DOI: 10.1007/s11663-011-9498-1
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资金
- Australian Research Council
- ISP Ltd.
- Britannia Zinc Ltd.
- Enirisorse SA
- Pasminco Sulphide
- Rio Tinto Technical Services
- MHD GmbH
- Metaleurop
- Hachinohe Smelting Co. Ltd.
The phase equilibria in the ZnO-FeO-Al2O3-CaO-SiO2-MgO system have been determined experimentally in equilibrium with metallic iron. Synthetic slags were equilibrated at a high temperature, quenched, and then the compositions of the phases in equilibrium were measured using electron probe X-ray microanalysis. Pseudoternary sections of the form ZnO-FeO-(Al2O3 + CaO + SiO2) for CaO/SiO2 = 0.71, (CaO + SiO2)/Al2O3 = 5 and fixed MgO concentrations of 2, 4, and 6 wt pct have been constructed. Wustite (Fe2+,Mg,Zn)O and spinel (Fe2+,Mg,Zn)O center dot(Al,Fe3+)(2)O-3 are the major primary phases in the temperature and composition ranges investigated. The liquidus temperatures are increased by 140 K in the wustite primary phase field and by 70 K in the spinel primary phase field with the addition of 6 wt pct MgO in the slag. The partitioning of MgO and ZnO between the solid and liquid phases has been discussed.
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