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Sustainable Valuable Metal Recovery from the V-Cr-Fe Ternary Slime via Leaching-Selective Complexation
Zhang, Yang; Peng, Xuefeng; Fan, Bingqiang; Zang, Nan; Zheng, Shili; Zhang, Yi; Jin, Wei
2020-01-20
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume8Issue:2Pages:958-965
AbstractThe V-Cr-Fe ternary slime is an emerging heavy metal waste after a series of pyro- and hydro-metallurgical processes (the so-called "slime of the slag"), usually containing considerable metal resources and nearly 70 wt % H2O inside. In this study, a facile leaching complexation method is proposed for the cleaner, efficient, and selective recovery of V, Cr, and Fe. After efficient leaching procedure in the H2SO4 solution, 94% V and 97% Fe were selectively precipitated out via the complexation with C5H10NNaS2. Subsequently, the V and Fe could be further separated through the dissociation in alkaline solution, in which the Fe(OH)(3) solid and Ca2V2O7 (with the addition of CaO) were generated, respectively. Furthermore, the complexing agent could be regenerated for next cycles, minimizing the potential secondary wastewater or solid waste formation. As a result, a cleaner and sustainable metal recovery method was developed, providing further understanding of the solution chemistry and separation technologies.
Keywordslime valuable metals ternary complexation selective recovery
DOI10.1021/acssuschemeng.9b05563
Language英语
WOS KeywordVANADIUM SLAG ; DITHIOCARBAMATE COMPLEXES ; SCR CATALYST ; EXTRACTION ; SEPARATION ; CHROMIUM ; CR(VI) ; V(V) ; IRON
Funding ProjectNational Natural Science Foundation of China[51674230] ; National Natural Science Foundation of China[51604253]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000509432200025
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38724
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Yang; Jin, Wei
AffiliationChinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yang,Peng, Xuefeng,Fan, Bingqiang,et al. Sustainable Valuable Metal Recovery from the V-Cr-Fe Ternary Slime via Leaching-Selective Complexation[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(2):958-965.
APA Zhang, Yang.,Peng, Xuefeng.,Fan, Bingqiang.,Zang, Nan.,Zheng, Shili.,...&Jin, Wei.(2020).Sustainable Valuable Metal Recovery from the V-Cr-Fe Ternary Slime via Leaching-Selective Complexation.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(2),958-965.
MLA Zhang, Yang,et al."Sustainable Valuable Metal Recovery from the V-Cr-Fe Ternary Slime via Leaching-Selective Complexation".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.2(2020):958-965.
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