| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recycling and Sustainability for Emerging Technologies and Strategic Materials
|
| Presentation Title |
Copper Separation from Steel Scrap |
| Author(s) |
Hyunsoo Jin, Brajendra Mishra |
| On-Site Speaker (Planned) |
Hyunsoo Jin |
| Abstract Scope |
Copper impurities in scrap restrict the recycling of steels due to surface defects and loss of ductility in products. At present, the dilution method is the best and efficient way and is widely used where low impurity iron-bearing products, relatively pure iron are mixed with high copper post-consumer scrap to lower its negative impacts. However, the composition of steel scrap will show more copper and tin because of more electric appliances, electric vehicles and other WEEE needed to be reprocessed. Therefore, the dilution method will face some processing as well as cost limitations, since low impurity iron sources are expensive and scrap will need to be reused.
Roughly, there are two strategies for refining one is based on hydrometallurgy for surface copper contamination whereas, pyrometallurgical techniques are suitable for bulk copper and tin contamination. Specifically, the aluminum bath extraction method, has been conducted for different heat treating temperature and time. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Recycling and Secondary Recovery, Pyrometallurgy, |