Abstract
Reduction and smelting of the vanadium titanomagnetite metallized pellets have been experimentally investigated in this study. By using the high-temperature smelting, rapid quenching, and electron probe x-ray microanalysis (EPMA) technique, the effects of basicity, reaction time, and graphite reductant amount were investigated. The vanadium contents in iron alloys increase with increasing basicity, reaction time, and graphite amount, whereas the FeO and V2O3 concentrations in the liquid phase decrease with the increase of graphite amount and reaction time. Increasing the reaction time and reductant content promotes the reduction of titanium oxide, whereas the reduction of titanium oxides can be suppressed with increasing the slag basicity. Titanium carbide (TiC) was not observed in all the quenched samples under the present conditions. The experimental results and the FactSage calculations are also compared in the present study.
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Acknowledgements
The authors would like to thank Ms. Jie Yu for the lab assistance. The authors acknowledge the Australian Microscopy & Microanalysis Research Facility at the Centre for Microscopy and Microanalysis, The University of Queensland, for providing facilities and scientific and technical assistance. Shuai Wang acknowledges the financial support from China Scholarship Council for his work at The University of Queensland (No. 201606370132).
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Wang, S., Chen, M., Guo, Y. et al. Reduction and Smelting of Vanadium Titanomagnetite Metallized Pellets. JOM 71, 1144–1149 (2019). https://doi.org/10.1007/s11837-018-2863-7
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DOI: https://doi.org/10.1007/s11837-018-2863-7