About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Next Generation Electrometallurgical Technologies for Metal Extraction, Refining, and Recycling
|
| Presentation Title |
Thermodynamic and Experimental Investigation of In-Furnace Recycling of Electric Arc Furnace Dust |
| Author(s) |
Biao Dong, Botao Xue, Guangsheng Wei, Rong Zhu, Chao Feng |
| On-Site Speaker (Planned) |
Biao Dong |
| Abstract Scope |
As electric arc furnace dust (EAFD) is rich in both Zn and Fe but difficult and costly to recycle through external treatment,this study proposes a self-circulating treatment method using carbon assisted bath injection.EAFD was mixed with carbon powder and lime and injected into the molten bath to enrich Zn and recover Fe.Mass and energy balance models were established for an EAF process using only scrap,and tube furnace experiments were conducted to evaluate the effects of EAFD addition on slag and metal separation and Zn and Fe recovery.For each 1‰ increase in EAFD addition,carbon powder and lime consumption increased by 0.14 and 0.04 kg/t steel, while slag generation,Zn vapor,and energy consumption increased by 0.26 kg/t,0.30 kg/t,and 0.64 kWh/t,respectively.At a basicity of 2.5, C/O of 1.1, and 10% EAFD addition, Zn enrichment and Fe recovery reached 99% and 96%, respectively. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
火法冶金, 回收和二次回收, 其他 |