| Title |
Phase equilibria relations in the V2O5-rich part of the Fe2O3-TiO2-V2O5 system at 1200°C related to converter vanadium-bearing slag |
| ID_Doc |
29146 |
| Authors |
Shi, JJ; Zhai, YM; Qiu, YC; Hou, CL; Dong, JJ; Yao, MX; Li, HL; Zhou, YR; Li, JZ |
| Title |
Phase equilibria relations in the V2O5-rich part of the Fe2O3-TiO2-V2O5 system at 1200°C related to converter vanadium-bearing slag |
| Year |
2024 |
| Published |
International Journal Of Minerals Metallurgy And Materials, 31.0, 9 |
| DOI |
10.1007/s12613-024-2845-4 |
| Abstract |
The efficient recycling of vanadium from converter vanadium-bearing slag is highly significant for sustainable development and circular economy. The key to developing novel processes and improving traditional routes lies in the thermodynamic data. In this study, the equilibrium phase relations for the Fe2O3-TiO2-V2O5 system at 1200 degrees C in air were investigated using a high-temperature equilibrium-quenching technique, followed by analysis using scanning electron microscopy-energy dispersive X-ray spectrometer and X-ray photoelectron spectroscopy. One liquid-phase region, two two-phase regions (liquid-rutile and liquid-ferropseudobrookite), and one three-phase region (liquid-rutile-ferropseudobrookite) were determined. The variation in the TiO2 and V2O5 contents with the Fe2O3 content was examined for rutile and ferropseudobrookite solid solutions. However, on further comparison with the predictions of FactSage 8.1, significant discrepancies were identified, highlighting that greater attention must be paid to updating the current thermodynamic database related to vanadium-bearing slag systems. |
| Author Keywords |
vanadium-bearing slag; thermodynamics; FactSage; phase equilibria; recovery |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001300726800006 |
| WoS Category |
Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mining & Mineral Processing |
| Research Area |
Materials Science; Metallurgy & Metallurgical Engineering; Mining & Mineral Processing |
| PDF |
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