An environmentally friendly process to selectively recover silver from copper anode slime | |
Xiao, L.1,2; Wang, Y. L.1; Yu, Y.3; Fu, G. Y.1,2; Han, P. W.1; Sun, Z. H. I.1; Ye, S. F.1 | |
刊名 | JOURNAL OF CLEANER PRODUCTION |
2018-06-20 | |
卷号 | 187页码:708-716 |
关键词 | Anode Slime Silver Recovery Manganese Dioxide Electrodeposition |
ISSN号 | 0959-6526 |
DOI | 10.1016/j.jclepro.2018.03.203 |
英文摘要 | Anode slime is an important secondary resource for recovery of silver. However, high energy consumption and serious pollution limit the recovery with current processes. In this study, an effective and environmentally friendly process was developed for selective recovery of silver from copper anode slime, which consisted of oxidative pretreatment-thiosulfate leaching-electrodeposition. By using this novel strategy, silver recovery reached 96% with low consumption of reagent and energy, which also avoided emissions of harmful gases, such as sulfur dioxide and ammonium. The effects of pretreatment on phase conversion of silver and sulphur compounds in anode slime, the re-precipitation of silver during leaching were investigated, and efficiencies of the lixiviants of thiosulfate, sulfite and ammonia were compared in silver recovery. Meanwhile, the silver electrodeposition and electrolyte recycling were also investigated. It was demonstrated that the silver recovery from thiosulfate leaching solution by utilizing electrode position reached to 99.9% and a 95.3% recovery obtained by recycling the electrolyte for silver leaching. The study developed an effective green process to recover silver from anode slime. (C) 2018 Elsevier Ltd. All rights reserved. |
WOS关键词 | Manganese-dioxide ; Sulfite Complexes ; Thiosulfate ; Oxidation ; Gold ; Adsorption ; Electroreduction ; Kinetics ; Ions ; Ores |
WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:000432102500060 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/24728] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Ye, S. F. |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lakehead Univ, Thunder Bay, ON P7B 5E1, Canada |
推荐引用方式 GB/T 7714 | Xiao, L.,Wang, Y. L.,Yu, Y.,et al. An environmentally friendly process to selectively recover silver from copper anode slime[J]. JOURNAL OF CLEANER PRODUCTION,2018,187:708-716. |
APA | Xiao, L..,Wang, Y. L..,Yu, Y..,Fu, G. Y..,Han, P. W..,...&Ye, S. F..(2018).An environmentally friendly process to selectively recover silver from copper anode slime.JOURNAL OF CLEANER PRODUCTION,187,708-716. |
MLA | Xiao, L.,et al."An environmentally friendly process to selectively recover silver from copper anode slime".JOURNAL OF CLEANER PRODUCTION 187(2018):708-716. |
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