| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
New Directions in Mineral Processing, Extractive Metallurgy, Recycling and Waste Minimization: An EPD Symposium in Honor of Patrick R. Taylor
|
| Presentation Title |
D-34: Recovery of Bismuth in Blast Furnace Dust by Carbothermal Volatilization Reduction |
| Author(s) |
Huaixuan Feng, Yan Li, Jingsong Wang, Xuefeng She, Qingguo Xue, Guang Wang |
| On-Site Speaker (Planned) |
Huaixuan Feng |
| Abstract Scope |
Blast furnace gas sludge (BFGS) is a kind of solid waste generated from ironmaking process. It contains a small amount of indium. To plenty recycle valuable resource, the carbothermic reduction and volatilization method to recover indium of BFGS was used in this study. Thermodynamic calculations and thermogravimetric analysis were first used to determine the initial reaction temperature between In2O3 and C. To study the carbothermic reduction and volatilization process of indium, high-purity In2O3 and graphite were evenly mixed and heated at 900-1200℃ for 2h. Experimental results showed that the reduction volatilization of In2O3 was sufficient at 1200℃. Based on this result, we next attempted to recover indium from BFGS. The experimental results also yielded indium enrichment in the volatile dust. Therefore, this study illustrates that indium can be enriched and recycled in BFGS, as well as a certain practical approach to comprehensively utilizing such metallurgical solid waste. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Recycling and Secondary Recovery, Extraction and Processing |