Knowledge Management System Of Institute of process engineering,CAS
| Effect of electrolyte reuse on metal recovery from waste CPU slots by slurry electrolysis | |
| Yi, Xiaoxia1; Qi, Yaping1; Li, Feifan1; Shu, Jiancheng1; Sun, Zhi2; Sun, Shuhui3; Chen, Mengjun1,2; Pu, Shengyan4 | |
| 2019-07-15 | |
| Source Publication | WASTE MANAGEMENT
 |
| ISSN | 0956-053X |
| Volume | 95Pages:370-376 |
| Abstract | As an indispensable part of printed circuit boards (PCBs), central processing unit (CPU) slots contain a significant amount of precious metals which makes economic sense to recycle these materials. Slurry electrolysis is an attractive approach for electronic waste (e-waste) recycling. In this study, the effect of electrolyte reuse on the recovery of metals (Primarily aluminum, nickel, copper, lead, silver, palladium, platinum and gold), from waste CPU slots by slurry electrolysis is discussed in detail. These results show that metal recovery rate, more than 95% for all 13 cycles, was not affected by slurry electrolyte reuse during metal recycling from waste CPU slots, though the reuse of slurry electrolyte greatly impacted the distribution of metals in the anode residues, electrolyte and cathode metal powders. However, slurry electrolysis recovered metals from waste CPU slots and the effect of electrolyte reuse on the recovery of metals from waste CPU slots is discussed for the first time in this study. This could benefit the recycling process since it could improve cathode metal powders recovery rates by approximately 2 times. The acid usage could be significantly reduced by electrolyte reuse when compared to fresh electrolyte. Therefore, electrolyte reuse is demonstrated and slurry electrolysis is a feasible and potentially economically friendly choice for industrial e-waste recycling. (C) 2019 Published by Elsevier Ltd. |
| Keyword | Waste CPU slots Slurry electrolysis Electrolyte reuse Precious metal Metal distribution |
| DOI | 10.1016/j.wasman.2019.06.034 |
| Language | 英语 |
| WOS Keyword | PRINTED-CIRCUIT BOARDS ; ELECTROCHEMICAL DISSOLUTION ; PRECIOUS METALS ; COPPER ; GOLD ; EXTRACTION |
| Funding Project | Key Research and Development Projects of Sichuan Province[2019YFS0450] ; National Natural Science Foundation of China[21377104] ; Research Fund of Southwest University of Science and Technology[14tdgk01] ; Research Fund of Southwest University of Science and Technology[17LZX422] ; Research Fund of Southwest University of Science and Technology[17LZXT05] ; Research Fund of Southwest University of Science and Technology[18LZX412] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| Funding Organization | Key Research and Development Projects of Sichuan Province ; National Natural Science Foundation of China ; Research Fund of Southwest University of Science and Technology |
| WOS ID | WOS:000499920700036 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/38307 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Mengjun; Pu, Shengyan |
| Affiliation | 1.Southwest Univ Sci & Technol, Minist Educ, Key Lab Solid Waste Treatment & Resource Recycle, Mianyang 621010, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Inst Natl Rech Sci Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada 4.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, 1 Dongsanlu, Chengdu 610059, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Yi, Xiaoxia,Qi, Yaping,Li, Feifan,et al. Effect of electrolyte reuse on metal recovery from waste CPU slots by slurry electrolysis[J]. WASTE MANAGEMENT,2019,95:370-376. |
| APA | Yi, Xiaoxia.,Qi, Yaping.,Li, Feifan.,Shu, Jiancheng.,Sun, Zhi.,...&Pu, Shengyan.(2019).Effect of electrolyte reuse on metal recovery from waste CPU slots by slurry electrolysis.WASTE MANAGEMENT,95,370-376. |
| MLA | Yi, Xiaoxia,et al."Effect of electrolyte reuse on metal recovery from waste CPU slots by slurry electrolysis".WASTE MANAGEMENT 95(2019):370-376. |
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