| Selective recovery of palladium from waste printed circuit boards by a novel non-acid process | |
| Zhang, Zhiyuan; Zhang, Fu-Shen | |
| 2014 | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
 |
| ISSN | 0304-3894 |
| Volume | 279Issue:1Pages:46-51 |
| Abstract | An environmental benign, non-acid process was successfully developed for selective recovery of palladium from waste printed circuit boards (PCBs). In the process, palladium was firstly enriched during copper recovery procedure and dissolved in a special solution made of CuSO4 and NaCl. The dissolved palladium was then extracted by diisoamyl sulfide (S201). It was found that 99.4% of Pd(II) could be extracted from the solution under the optimum conditions (10% S201, A/O ratio 5 and 2 min extraction). In the whole extraction process, the influence of base metals was negligible due to the relatively weak nucleophilic substitution of S201 with base metal irons and the strong steric hindrance of S201 molecular. Around 99.5% of the extracted Pd(II) could be stripped from S201/dodecane with 0.1 mol/L NH3 after a two-stage stripping at A/O ratio of 1. The total recovery percentage of palladium was 96.9% during the dissolution-extraction-stripping process. Therefore, this study established a benign and effective process for selective recovery of palladium from waste printed circuit boards. (C) 2014 Elsevier B.V. All rights reserved. |
| Department | 固体废弃物处理与资源化实验室 |
| Keyword | Waste Pcbs Recovery Palladium Extraction S201 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/9299 |
| Collection | 固体废弃物处理与资源化实验室 |
| Recommended Citation GB/T 7714 | Zhang, Zhiyuan,Zhang, Fu-Shen. Selective recovery of palladium from waste printed circuit boards by a novel non-acid process[J]. JOURNAL OF HAZARDOUS MATERIALS,2014,279(1):46-51. |
| APA | Zhang, Zhiyuan,&Zhang, Fu-Shen.(2014).Selective recovery of palladium from waste printed circuit boards by a novel non-acid process.JOURNAL OF HAZARDOUS MATERIALS,279(1),46-51. |
| MLA | Zhang, Zhiyuan,et al."Selective recovery of palladium from waste printed circuit boards by a novel non-acid process".JOURNAL OF HAZARDOUS MATERIALS 279.1(2014):46-51. |
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