| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Drying, Roasting, Calcining and Agglomeration of Feedstocks
|
| Presentation Title |
Selective Chlorination as an Innovative Method for the Extraction of Valuable From Spent Refractories |
| Author(s) |
Stefan Steinlechner, Kerrin Witt, Thomas Howard |
| On-Site Speaker (Planned) |
Stefan Steinlechner |
| Abstract Scope |
The development of recycling processes that enable the recovery of valuable metals from industrial residues with significantly lower CO2 emissions is necessary due to the aggravating circumstances of climate change, resource availability, and land consumption caused by the landfilling of residues. It is possible that processes based on chlorination reactions will become significant in the future in this context. To extract the valuable metal copper from the refractory matrix, this process was assessed in this context for the treatment of spent refractory bricks from the copper industry. The paper explains the behaviour of the identified most suitable reactant, magnesium chloride (MgCl2*6H2O), as well as the principles of chlorination and reaction mechanisms of different salts. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Recycling and Secondary Recovery, Pyrometallurgy |