Separation of V from alkaline solution containing Cr using acidified primary amine N1923 with the addition of trisodium citrate

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	Separation of V from alkaline solution containing Cr using acidified primary amine N1923 with the addition of trisodium citrate
	Sun, Pan 1,2; Huang, Kun 1; Wang, Xiaoqin 1,2; Song, Weiyuan 1,2; Zheng, Han 1; Liu, Huizhou 1
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2017-05-31
卷号	179 页码:504-512
关键词	Vanadium Chromium Separation Alkaline solutions Solvent extraction
ISSN号	1383-5866
英文摘要	Extraction and separation of V(V) and Cr(VI) in the alkaline solution obtained from the Sub-molten Salt Method to treat the high chromium vanadium slags has been a thorny problem in the past decades. In this work, a new liquid-liquid solvent extraction strategy was proposed by using acidified primary amine N1923 (denoted as A-N1923) to separate V(V) from alkaline solution containing Cr(VI) and AI(III). It was indicated that co-extraction of Cr(VI) and Al(III) with V(V) can be avoided with the addition of trisodium citrate previously into the feed solutions. The influence from various factors, including the concentration of trisodium citrate, the initial aqueous pH value, concentration of A-N1923 in the organic phase, diluents in the organic phase, and the initial concentration ratio of V(V) to Cr(VI) in alkaline solutions, on the separation of V(V), Cr(VI) and Al(III) were investigated. The extraction loading capacity of V(V) in the organic phase could reach 6.67 g/L at 298 K. Al(III) in the organic phase can be stripped selectively using 0.18 mol/L trisodium citrate solution, and then V(V) can be recovered by 1.0 mol/L NaNO3 solutions. The regeneration and reusability of the organic phases after stripping were discussed. The present work highlights a novel approach to separate and recover V(V) from alkaline leaching solution containing Cr(VI) and Al(III), especially being applicable for those strongly alkaline solution produced by treating the high chromium vanadium slags using the Sub-molten Salt Method. (C) 2017 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	VANADIUM-BEARING TITANOMAGNETITE ; SELECTIVE EXTRACTION ; CHROMIUM ; SLAG ; KINETICS ; RECOVERY ; TITANIUM ; EXCHANGE ; CR(VI) ; FIBER
收录类别	SCI
语种	英语
WOS记录号	WOS:000397688200054
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22076]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, PR, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun, Pan,Huang, Kun,Wang, Xiaoqin,et al. Separation of V from alkaline solution containing Cr using acidified primary amine N1923 with the addition of trisodium citrate[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,179:504-512.
APA	Sun, Pan,Huang, Kun,Wang, Xiaoqin,Song, Weiyuan,Zheng, Han,&Liu, Huizhou.(2017).Separation of V from alkaline solution containing Cr using acidified primary amine N1923 with the addition of trisodium citrate.SEPARATION AND PURIFICATION TECHNOLOGY,179,504-512.
MLA	Sun, Pan,et al."Separation of V from alkaline solution containing Cr using acidified primary amine N1923 with the addition of trisodium citrate".SEPARATION AND PURIFICATION TECHNOLOGY 179(2017):504-512.