Cleaner production of vanadium oxides by cation-exchange membrane-assisted electrolysis of sodium vanadate solution

doi:10.1016/j.hydromet.2017.03.010

	Cleaner production of vanadium oxides by cation-exchange membrane-assisted electrolysis of sodium vanadate solution
	Pan, Bo 1,2,3; Jin, Wei 2; Liu, Biao 2; Zheng, Shili 2; Wang, Shaona 2; Du, Hao 2,4; Zhang, Yi 1,2
	2017-05-01
发表期刊	HYDROMETALLURGY
ISSN	0304-386X
卷号	169 页码:440-446
摘要	We herein report the development of a membrane-assisted electrochemical method for separating sodium and vanadium from a sodium orthovanadate solution. During the employed electrolysis process, Na+ ions in the anode chamber pass through the cation-exchange membrane and combine with OH- ions in the cathode chamber to produce a concentrated NaOH solution, resulting in lowering of the pH in the anode chamber from 13.7 to 1.81. This reaction results in the precipitation of 92.60%-pure vanadium oxide. The effects of the electrolysis time, current density, solution temperature, and initial NaOH concentration in the cathode chamber on the process were investigated. It was found that increases in the current density and solution temperature decreased the initial NaOH concentration in the cathode chamber and enhanced sodium and vanadium separation. Using a current density of 600 A/m(2) and a solution temperature of 338 K, 3641 kW.h of energy was consumed to produce 1 t of NaOH and 0.75 t of V2O5 over an electrolysis time of 7 h. (C) 2017 Elsevier B.V. All rights reserved.
关键词	Cation-exchange Membrane Electrolysis Sodium Vanadium Separation Vanadium Oxide Naoh Recovery
文章类型	Article
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.hydromet.2017.03.010
收录类别	SCI
语种	英语
关键词[WOS]	SLAG ; EXTRACTION
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
项目资助者	National Basic Research Program of China (973 Program)(2013CB632605) ; Program of National Natural Science Foundation of China(51404227 ; 51604254 ; 51604253)
WOS记录号	WOS:000401878200053
引用统计
文献类型	期刊论文
条目标识符	http://ir.ipe.ac.cn/handle/122111/22632
专题	湿法冶金清洁生产技术国家工程实验室
作者单位	1.Tianjin Univ, Sch Chem Engn, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Pan, Bo,Jin, Wei,Liu, Biao,et al. Cleaner production of vanadium oxides by cation-exchange membrane-assisted electrolysis of sodium vanadate solution[J]. HYDROMETALLURGY,2017,169:440-446.
APA	Pan, Bo.,Jin, Wei.,Liu, Biao.,Zheng, Shili.,Wang, Shaona.,...&Zhang, Yi.(2017).Cleaner production of vanadium oxides by cation-exchange membrane-assisted electrolysis of sodium vanadate solution.HYDROMETALLURGY,169,440-446.
MLA	Pan, Bo,et al."Cleaner production of vanadium oxides by cation-exchange membrane-assisted electrolysis of sodium vanadate solution".HYDROMETALLURGY 169(2017):440-446.