Preparation of Highly Pure Vanadyl Sulfate from Sulfate Solutions Containing Impurities of Iron and Aluminum by Solvent Extraction Using EHEHPA

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 湿法冶金清洁生产技术国家工程实验室

	Preparation of Highly Pure Vanadyl Sulfate from Sulfate Solutions Containing Impurities of Iron and Aluminum by Solvent Extraction Using EHEHPA
	Li, Dan 1,2,3; Chen, Desheng 1,2; Zhang, Guozhi 1,2,3; Zhao, Hongxin 1,2; Qi, Tao 1,2; Wang, Weijing1,2 ; Wang, Lina 1,2; Liu, Yahui 1,2
刊名	METALS
	2017-03-01
卷号	7 期号:3
关键词	highly pure vanadyl sulfate vanadium-bearing titanomagnetite solvent extraction EHEHPA impurities removal
ISSN号	2075-4701
英文摘要	The preparation of highly pure vanadyl sulfate from sulfate solutions containing impurities of iron and aluminumwas investigated by solvent extraction with 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (EHEHPA) and tri-n-butyl phosphate (TBP) as the phase modifier. The extraction and stripping conditions of vanadium (IV) and its separation from iron and aluminum were optimized. Under the optimal extraction conditions, the extraction of vanadium (IV) and iron were 68% and 53%, respectively, while only 2% aluminum was extracted in a single contact, suggesting good separation of vanadium (IV) from aluminum. Sulfuric acid solution was used for the stripping. Nearly 100% vanadium (IV) and 95% aluminum were stripped, while only 10% iron was stripped under the optimal stripping conditions in a single contact, suggesting good separation of vanadium (IV) from iron. After five stages of extraction and stripping, highly pure vanadyl sulfate containing 76.5 g/L V (IV) with the impurities of 12 mg/L Fe and 10 mg/L Al was obtained, which is suitable for the electrolyte of a vanadium redox flow battery. Organic solution was well regenerated after stripping by oxalic acid solution to remove the remaining iron. The mechanism of vanadium (IV) extraction using EHEHPA was also discussed based on the Fourier transform infrared spectroscopy (FT-IR) analysis.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	REDOX FLOW BATTERY ; SYNERGISTIC EXTRACTION ; VANADIUM(V) ; SEPARATION ; RECOVERY ; D2EHPA ; THERMODYNAMICS ; TITANIUM ; LIQUORS ; MIXTURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000397261600038
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22105]
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, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Chem & Chem Engn Coll, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Dan,Chen, Desheng,Zhang, Guozhi,et al. Preparation of Highly Pure Vanadyl Sulfate from Sulfate Solutions Containing Impurities of Iron and Aluminum by Solvent Extraction Using EHEHPA[J]. METALS,2017,7(3).
APA	Li, Dan.,Chen, Desheng.,Zhang, Guozhi.,Zhao, Hongxin.,Qi, Tao.,...&Liu, Yahui.(2017).Preparation of Highly Pure Vanadyl Sulfate from Sulfate Solutions Containing Impurities of Iron and Aluminum by Solvent Extraction Using EHEHPA.METALS,7(3).
MLA	Li, Dan,et al."Preparation of Highly Pure Vanadyl Sulfate from Sulfate Solutions Containing Impurities of Iron and Aluminum by Solvent Extraction Using EHEHPA".METALS 7.3(2017).