Recovery of copper from pre-concentrated printed circuit boards (PCBS) by catalyzed acidic leaching
This study aimed to extract copper from waste printed circuit boards (WPCBs) through a sequential process involving physical pre-concentration via a shaking table, followed by acid leaching. A shredder and hammer mill were utilized to fragment the various components of the PCB into particles smaller...
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| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2025-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | https://doiserbia.nb.rs/img/doi/0352-5139/2025/0352-51392400086G.pdf |
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| Summary: | This study aimed to extract copper from waste printed circuit boards (WPCBs) through a sequential process involving physical pre-concentration via a shaking table, followed by acid leaching. A shredder and hammer mill were utilized to fragment the various components of the PCB into particles smaller than 1 mm. The shaking table pre-concentration tests revealed that the heavy fraction exhibited a copper grade of 56.4 % with a yield of 89.6 %. Subsequent leaching of the copper concentrate, using a solution containing 1 M H2SO4 and 4 vol. % H2O2 at 50°C for two hours, resulted in a copper extraction efficiency exceeding 95 % with a solid ratio of 2 wt. %/V. |
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| ISSN: | 0352-5139 1820-7421 |