Cleaner production of vanadium oxides by cation-exchange membrane-assisted electrolysis of sodium vanadate solution | |
Pan, Bo1,2,3; Jin, Wei2; Liu, Biao2; Zheng, Shili2; Wang, Shaona2; Du, Hao2,4; Zhang, Yi1,2 | |
2017-05-01 | |
Source Publication | HYDROMETALLURGY
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ISSN | 0304-386X |
Volume | 169Pages:440-446 |
Abstract | 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. |
Keyword | Cation-exchange Membrane Electrolysis Sodium Vanadium Separation Vanadium Oxide Naoh Recovery |
Subtype | Article |
WOS Headings | Science & Technology ; Technology |
DOI | 10.1016/j.hydromet.2017.03.010 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | Slag ; Extraction |
WOS Research Area | Metallurgy & Metallurgical Engineering |
WOS Subject | Metallurgy & Metallurgical Engineering |
Funding Organization | National Basic Research Program of China (973 Program)(2013CB632605) ; Program of National Natural Science Foundation of China(51404227 ; 51604254 ; 51604253) |
WOS ID | WOS:000401878200053 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/22632 |
Collection | 湿法冶金清洁生产技术国家工程实验室 |
Affiliation | 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 |
Recommended Citation 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. |
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