| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Extraction Vanadium from High Calcium and High Phosphorus Vanadium Slag by Magnesiation Roasting-acid Leaching |
| Author(s) |
Xin-Mian Chen, Hong-Yi Li, Jing Tan, Jie Cheng, Jiang Diao, Bing Xie |
| On-Site Speaker (Planned) |
Xin-Mian Chen |
| Abstract Scope |
Magnesiation roasting-acid leaching is carried out to extract vanadium from high calcium and high phosphorus vanadium slag (HCPVS). The effects of roasting and leaching conditions on vanadium and phosphorus extraction are studied. In optimal conditions, the extraction efficiency of vanadium reaches 79.7%, only 35.6% phosphorus is leached owing to Mg2+ inhibited the leaching of phosphorus. The roasting mechanism are analyzed by XRD and BSE-EDS systematically, best of vanadium in V-spinel is converted into vanadate, a small part of vanadium is dissolved into Ca2SiO4-Ca3(PO4)2 and CaTiO3 phase. This work reveals the influence mechanism of Ca2SiO4-Ca3(PO4)2 and CaTiO3 phase on vanadium extraction, providing new insights for vanadium extraction from HCPVS. |
| Proceedings Inclusion? |
Planned: |