| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Effect of MgO, MnO and Al2O3 on Vanadium Extraction in Sodium Roasting-water Leaching Process of Vanadium Slag |
| Author(s) |
Jiang Liyuan, Jiang Diao, Hao Qin, Quan Zhang, Wenfeng Tan, Hong-Yi Li, Bing Xie |
| On-Site Speaker (Planned) |
Jiang Liyuan |
| Abstract Scope |
The effect of different oxides in vanadium slag, such as MgO, MnO and Al2O3 on vanadium extraction in sodium roasting-water leaching process has been investigated. The results show that the increase of these oxides have positive influence on the conversion rate of vanadium. At the condition of sodium roasting, with the increase of MgO, MnO and Al2O3 contents to 11.49%, 14.22% and 11.13%, the conversion rates of vanadium increased from 89.9% to 97.3%, 98.0% and 95.8%, respectively. With increasing MgO content, more vanadium transformed into spinel phase. The roasting and leaching papermeters have also been optimized. 97.3% of vanadium could be extracted from high MgO vanadium slag at the following conditions: roasting temperature 800oC, V/Na molar ratio 0.2; leaching time 60 min, liquid/solid ratio 10:1. The results can provide fundamental basis to the modification of vanadium slag based on slag splashing in vanadium extraction converter. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |