Metals valorization from pyrolyzed waste PCBS
This paper examines the potential for valorizing the non-metallic fraction (NMF) of e-waste, focusing on metal recovery through pyrolysis to address challenges in electronic waste recycling. Characterization of a real sample showed that NMF contains 3.44 wt.% metals, primarily copper (80 wt.%), indi...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Savez inženjera i tehničara Srbije
2024-01-01
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| Series: | Tehnika |
| Subjects: | |
| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/0040-2176/2024/0040-21762406689K.pdf |
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| Summary: | This paper examines the potential for valorizing the non-metallic fraction (NMF) of e-waste, focusing on metal recovery through pyrolysis to address challenges in electronic waste recycling. Characterization of a real sample showed that NMF contains 3.44 wt.% metals, primarily copper (80 wt.%), indicating potential for its valorization. Pyrolysis was optimized by varying temperature (up to 800°C) and atmospheric conditions (ambient vs. vacuum). The optimal oil extraction achieved at 700°C under vacuum. FTIR analysis identified phenols and halogenated aromatics in the generated oil. The pyrolyzed residue showed high concentrations of silver (494 g/t) and gold (56 g/t), enabling their further valorization. This research confirms NMF's dual potential for valorizing both organic and metal content, supporting sustainable material management. |
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| ISSN: | 0040-2176 2560-3086 |