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Ammonium vanadate/ammonia precipitation for vanadium production from a high vanadate to sodium ratio solution obtained via membrane electrolysis method
Pan, Bo1,2,3; Liu, Biao2; Wang, Shaona2; Wenzel, Marco5; Weigand, Jan J.5; Feng, Man2,5; Du, Hao2,4; Zhang, Yi1,2
2020-08-01
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
Volume263Pages:9
Abstract

Vanadium is an important strategic metal and has been widely applied in a multiple of industries. However, the current process for the production of vanadium compounds suffers from the generation of a significant amount of high salinity ammonium containing wastewater due to the mixing of sodium salts, ammonium salts, and acid during vanadium precipitation operation. In order to avoid the generation of wastewater at source, a clean and recyclable V2O5 production process was proposed and investigated in this study. Using NH4VO3 and NH3 center dot H2O as precipitants, (NH3)(2)center dot 3V(2)O(5)center dot H2O and (NH3)(2)center dot 3V(2)O(5)center dot H2O were obtained by precipitation of vanadate (VxOyn-) from a high vanadate to sodium (V/Na) molar ratio acidic solution obtained via membrane electrolysis method, avoiding the generation of wastewater or solid waste. After calcination, high purity V2O5 product could be obtained. The vanadium precipitation process was investigated using ICP, XPS, SEM, XRD techniques, and the precipitation rate was investigated using solution conductivity method. Critical precipitation parameters such as excessive coefficient, solution temperature, solution V/Na molar ratio and solution pH were examined in detail. The results showed that increase the excessive coefficient, solution temperature and solution V/Na molar ratio, as well as reduce the solution pH would be beneficial for obtaining high purity vanadium products (>= 99.9% V2O5). Optimum parameters were obtained at the V/Na molar ratio of 2.58, the excessive coefficient of 2, and the solution temperature of 363 K. The vanadium products obtained using both precipitants have a similar purity (more than 99.9%), however, due to a higher degree of hydrolysis reaction, the NH4VO3 precipitation method showed a higher VxOyn- precipitation rate (66.36%) in comparison with the NH3 center dot H2O precipitation method (38.76%), indicating that the first method was superior. Based on this, a complete process with zero waste emission for V2O5 production was designed. The methods proposed and the results obtained from this study could provide fundamental information for the design of cleaner vanadium production process. (C) 2020 Elsevier Ltd. All rights reserved.

KeywordCleaner Production Vxoyn- Precipitation Nh4vo3 And Nh3 Center Dot H2o Precipitants Recycle Process
DOI10.1016/j.jclepro.2020.121357
Language英语
WOS KeywordCleaner Production ; Extraction ; Reduction ; Chromium
Funding ProjectHebei Key RD Program[19044011Z] ; Sino-German Collaboration Project[51761135108] ; Sino-German Collaboration Project[392417756] ; Natural Science Foundation of Hebei[E2019318015] ; Natural Science Foundation of Hebei[B2019318017] ; Natural Science Foundation of Hebei[B2019318014] ; CSC council[201504910560] ; German Science Foundation[WE 4621/4-1]
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
Funding OrganizationHebei Key RD Program ; Sino-German Collaboration Project ; Natural Science Foundation of Hebei ; CSC council ; German Science Foundation
WOS IDWOS:000543468400014
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41377
Collection中国科学院过程工程研究所
Corresponding AuthorDu, Hao
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, 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
5.Tech Univ Dresden, Fac Chem & Food Chem, D-01062 Dresden, Germany
Recommended Citation
GB/T 7714
Pan, Bo,Liu, Biao,Wang, Shaona,et al. Ammonium vanadate/ammonia precipitation for vanadium production from a high vanadate to sodium ratio solution obtained via membrane electrolysis method[J]. JOURNAL OF CLEANER PRODUCTION,2020,263:9.
APA Pan, Bo.,Liu, Biao.,Wang, Shaona.,Wenzel, Marco.,Weigand, Jan J..,...&Zhang, Yi.(2020).Ammonium vanadate/ammonia precipitation for vanadium production from a high vanadate to sodium ratio solution obtained via membrane electrolysis method.JOURNAL OF CLEANER PRODUCTION,263,9.
MLA Pan, Bo,et al."Ammonium vanadate/ammonia precipitation for vanadium production from a high vanadate to sodium ratio solution obtained via membrane electrolysis method".JOURNAL OF CLEANER PRODUCTION 263(2020):9.
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