CAS OpenIR
Enhanced Separation Behavior of Metals from Simulated Printed Circuit Boards by Supergravity
Meng, Long1,2; Liu, Yudong1,2; Guo, Zhancheng1
2022-09-01
Source PublicationMETALS
Volume12Issue:9Pages:12
AbstractPrinted circuit boards (PCBs) contain valuable metals, epoxy resin, and glass fiber, resulting in them being considered as attractive secondary sources of metals. Due to the complex metal compositions in PCBs, it is difficult to clarify the mechanism of metal separation behavior in the pyrometallurgical recovery process. In this paper, pure Pb, Sn and Cu were used to simulate the effects of temperature, time, particle size and shape on the reaction and separation process. With the increase of temperature and time, the thickness of the interface reaction layer was improved. Under the same temperature and time, the reaction degree of Cu with Sn was greater than that of Cu with Pb. In the separation process, reducing temperature, time and increasing Cu particle size were conducive to the separation and recovery of Pb-Sn alloy by supergravity. Under the same or similar particle size, the recovery of Pb-Sn alloy in irregular Cu particles was lower than that in regular Cu spheres. Improving the gravity coefficient benefited the recoveries of Pb and Sn. The results will provide technical guidance for the separation and recovery of Pb, Sn and Cu from real PCBs.
Keywordprinted circuit boards supergravity reaction process mechanism separation behavior
DOI10.3390/met12091533
Language英语
WOS KeywordPRECIOUS METALS ; LEACH LIQUOR ; RECOVERY ; COPPER ; REMOVAL ; AL ; EXTRACTION ; GOLD ; ACID ; PB
Funding ProjectNational Natural Science Foundation of China[52004264] ; China Postdoctoral Science Foundation[2022M711989] ; National Key R&D Program of China[2021YFC1910502] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2020-1]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Key R&D Program of China ; Key Research Program of the Chinese Academy of Sciences
WOS IDWOS:000857766700001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/54715
Collection中国科学院过程工程研究所
Corresponding AuthorGuo, Zhancheng
Affiliation1.Univ Sci & Technol Beijing, State Key Lab Adv Met, 30 Xueyuan Rd, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, 1 Beier Tiao, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Meng, Long,Liu, Yudong,Guo, Zhancheng. Enhanced Separation Behavior of Metals from Simulated Printed Circuit Boards by Supergravity[J]. METALS,2022,12(9):12.
APA Meng, Long,Liu, Yudong,&Guo, Zhancheng.(2022).Enhanced Separation Behavior of Metals from Simulated Printed Circuit Boards by Supergravity.METALS,12(9),12.
MLA Meng, Long,et al."Enhanced Separation Behavior of Metals from Simulated Printed Circuit Boards by Supergravity".METALS 12.9(2022):12.
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