| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Process Metallurgy and Environmental Engineering: An EPD Symposium in Honor of Takashi Nakamura
|
| Presentation Title |
Recovery of Iron from Copper Tailings Using a Combined Direct Reduction-Magnetic Separation Process |
| Author(s) |
Chen Buxin, Minghong Deng, Mengjun Hu, Mengyao Dong, Meilong Hu |
| On-Site Speaker (Planned) |
Chen Buxin |
| Abstract Scope |
Iron in the form of fayalite in copper tailings poses a challenge for traditional beneficiation methods due to its fine particle size. In this work, iron present in copper tailings was efficiently recovered by reducing fayalite to metallic iron and subsequently separating it from gangue using thelow-intensity magnetic separation. Additionally, this approach prevents the agglomeration of the metallic iron during high-temperature reduction. The effects of the reduction temperature, reducing agent dosage and additive dosage on iron recovery from copper tailings were investigated using a combined process of the direct reduction and magnetic separation. The results confirm that it is feasibility of iron recover from copper tailings through direct the combined process. The optimal reduction conditions are 5% CaO, 25-30% anthracite additions, 1100-1200 °C, and a duration of 3 h. The optimal experimental magnetic field current is 0.5A. The final product obtained has an iron grade of 78%. |
| Proceedings Inclusion? |
Planned: |