Sustainable Valuable Metal Recovery from the V-Cr-Fe Ternary Slime via Leaching-Selective Complexation

doi:10.1021/acssuschemeng.9b05563

	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
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2020-01-20
卷号	8 期号:2 页码:958-965
关键词	slime valuable metals ternary complexation selective recovery
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.9b05563
英文摘要	The 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.
资助项目	National Natural Science Foundation of China[51674230] ; National Natural Science Foundation of China[51604253]
WOS关键词	VANADIUM SLAG ; DITHIOCARBAMATE COMPLEXES ; SCR CATALYST ; EXTRACTION ; SEPARATION ; CHROMIUM ; CR(VI) ; V(V) ; IRON
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000509432200025
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/38723]
专题	中国科学院过程工程研究所
通讯作者	Zhang, Yang; Jin, Wei
作者单位	Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
推荐引用方式 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.