| 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 |
Impact of Bromine Flame Retarded Plastics on Allocation and Recovery of Cu in Pyrolysis of E-waste |
| Author(s) |
Sylwia Oleszek, Shogo Kumagai, Mariusz Grabda, Etsuro Shibata, Takashi Nakamura, Toshiaki Yoshioka, Masaki Takaoka |
| On-Site Speaker (Planned) |
Sylwia Oleszek |
| Abstract Scope |
E-waste, particularly printed circuit boards, is an attractive secondary resource of valuable metals (e.g., Cu, Au, Ag, Ni). However, it also contains glass, ceramic, plastic, and very often bromine flame retardants (BFRs) that must be appropriately treated to make the e-waste recycling process sustainable.
Pyrometallurgical processing of e-waste is one of the attractive methods allowing the recovery of metals and simultaneous conversion of plastic waste to energy. However, the problem is with the BFRs which evolve organic brominated compounds and corrosive gas (HBr). The HBr tends to react with some metals affecting their allocation within the pyrolytic system.
This study focuses on the bromination of Cu in pyrolysis with various BFR-contained plastics. The results show that the formed CuBr vaporizes and concentrates in the condensed fraction, indicating, that this fraction, as same as Cu-reach residue should be considered for further processing to make the recovery rate of Cu more efficient. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Copper / Nickel / Cobalt, Recycling and Secondary Recovery |