CAS OpenIR
Copper extraction from waste printed circuit boards by glycine
Han, Yunhui1; Yi, Xiaoxia1; Wang, Rui1; Huang, Jinfeng1; Chen, Mengjun1,2; Sun, Zhi3; Sun, Shuhui4; Shu, Jiancheng1
2020-12-15
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume253Pages:6
AbstractThe metal recycling processes in the waste printed circuit boards (WPCBs) are mainly pyrometallurgy and hydrometallurgy, whereas hydrometallurgy is considered as an efficient but less environmentally friendly process. In this study, a green amino acid, glycine, was used to replace traditional inorganic acids to extract Cu from WPCBs by investigating the effects of temperature, H2O2 volume, solid-liquid ratio and glycine concentration on Cu leaching efficiency. The kinetics and thermodynamics of the leaching process were also studied. The maximum leaching efficiency is up to 94.08% when the temperature is 30 degrees C, initial H2O2 volume is 10%, the solid-liquid ratio is 1:100 and the initial glycine concentration is 1 mol/L. After leaching, sky blue crystal, cupric-glycinate, could obtain by adding absolute ethyl alcohol. The leaching process is controlled by diffusion and chemical reactions. All these results show that the green glycine could successfully replace traditional inorganic acids to extract Cu from WPCBs, providing a feasible and perspective future for industrial application.
KeywordWPCBs Glycine H2O2 Hydrometallurgy Cupric-glycinate
DOI10.1016/j.seppur.2020.117463
Language英语
WOS KeywordHYDROGEN-PEROXIDE ; LEACHING PROCESS ; METAL RECOVERY ; CHALCOPYRITE ; GOLD ; CONCENTRATE ; KINETICS ; WPCBS ; MANGANESE ; LITHIUM
Funding ProjectNational Natural Science Foundation of China[51974262] ; Science & Technology Pillar Program of Sichuan Province[2019YFS0450]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; Science & Technology Pillar Program of Sichuan Province
WOS IDWOS:000571904400005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42158
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Mengjun
Affiliation1.Southwest Univ Sci & Technol, Key Lab Solid Waste Treatment & Resource Recycle, Minist Educ, Mianyang 621010, Sichuan, Peoples R China
2.Wuchang Univ Technol, Coll Life Sci, 16 Jiangxia Ave, Wuhan 430223, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
4.Inst Natl Rech Sci Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada
Recommended Citation
GB/T 7714
Han, Yunhui,Yi, Xiaoxia,Wang, Rui,et al. Copper extraction from waste printed circuit boards by glycine[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2020,253:6.
APA Han, Yunhui.,Yi, Xiaoxia.,Wang, Rui.,Huang, Jinfeng.,Chen, Mengjun.,...&Shu, Jiancheng.(2020).Copper extraction from waste printed circuit boards by glycine.SEPARATION AND PURIFICATION TECHNOLOGY,253,6.
MLA Han, Yunhui,et al."Copper extraction from waste printed circuit boards by glycine".SEPARATION AND PURIFICATION TECHNOLOGY 253(2020):6.
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