| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Upgrading Iron Ore by Microwave Desulphurization with Reduction of Harmful SO2 Emission |
| Author(s) |
Lei Ye, Ran Tian, Guanwen Luo, Huimin Tang, Jian Zhang, Mingjun Rao, Zhiwei Peng |
| On-Site Speaker (Planned) |
Zhiwei Peng |
| Abstract Scope |
High capital and operating costs are associated with cleaning the SO2-containing flue gas in iron and steel industry. In this study, a novel method for simultaneously improving the desulfurization of iron ore and lowering SO2 emissions in flue gas at low temperature under microwave radiation was reported by adding urea into iron ore. The results showed that the desulfurization percentages of both iron ore and SO2 in flue gas increased significantly when adding urea. By adding 1.5 wt% urea into iron ore and roasting it at 250 ℃ for 60 min, the desulfurization percentage of roasted iron ore reached 67.37% and SO2 emissions in flue gas decreased by 74.68%. After leaching roasted ore with water at room temperature for 30 min, the residual sulfur content of the leaching residue decreased to 0.21 wt%, serving as good burden for iron and steel making. This study provided a good example for efficient, low cost, and environmentally friendly desulfurization process for sulfur-containing iron ore. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Extraction and Processing, Sustainability |