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The influence of impurities on Ga electrowinning: Vanadium and iron
Alternative TitleHydrometallurgy
Liu, Ling1,2; Wang, Mingyong1; Wang, Zhi1; Zhang, Yi1
2014-05-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume146Issue:1Pages:76-81
AbstractDuring the electrolytic extraction of Ga, iron and vanadium are main metal impurities in Ga solution. The influences of Fe(III) and V(V) on current efficiency (QE) of Ga electrowinning were studied. The surface structures of electrodeposited Ga coatings were examined by SEM, EDS and potentiodynarnic polarization. The results indicate that QE is sharply decreased in the presence of V(V). Spherical Ga particles are easily produced in Ga solution with impurities, especially in the presence of V(V) and at higher current density. It is difficult for Ga particles with impurities and newly formed Ga crystals to incorporate into Ga films due to the difference of surface structure and properties between Ga and impurities. As a result, newly formed Ga crystals are easily re-dissolved which leads to the decrease of QE. When both Fe(III) and V(V) exist in Ga solution, QE at lower current density is increased due to the siderophile affinity of Ga. (C) 2014 Elsevier B.V. All rights reserved.; During the electrolytic extraction of Ga, iron and vanadium are main metal impurities in Ga solution. The influences of Fe(III) and V(V) on current efficiency (QE) of Ga electrowinning were studied. The surface structures of electrodeposited Ga coatings were examined by SEM, EDS and potentiodynarnic polarization. The results indicate that QE is sharply decreased in the presence of V(V). Spherical Ga particles are easily produced in Ga solution with impurities, especially in the presence of V(V) and at higher current density. It is difficult for Ga particles with impurities and newly formed Ga crystals to incorporate into Ga films due to the difference of surface structure and properties between Ga and impurities. As a result, newly formed Ga crystals are easily re-dissolved which leads to the decrease of QE. When both Fe(III) and V(V) exist in Ga solution, QE at lower current density is increased due to the siderophile affinity of Ga. (C) 2014 Elsevier B.V. All rights reserved.
KeywordGallium Vanadium Iron Electrowinning Current Efficiency
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.hydromet.2014.03.009
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPHOTOVOLTAIC CELLS ; ALKALINE-SOLUTIONS ; PRECURSOR FILMS ; COPPER POWDERS ; GALLIUM ; ELECTRODEPOSITION ; RECOVERY ; LIQUORS
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000337856200011
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10938
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Ling,Wang, Mingyong,Wang, Zhi,et al. The influence of impurities on Ga electrowinning: Vanadium and iron[J]. HYDROMETALLURGY,2014,146(1):76-81.
APA Liu, Ling,Wang, Mingyong,Wang, Zhi,&Zhang, Yi.(2014).The influence of impurities on Ga electrowinning: Vanadium and iron.HYDROMETALLURGY,146(1),76-81.
MLA Liu, Ling,et al."The influence of impurities on Ga electrowinning: Vanadium and iron".HYDROMETALLURGY 146.1(2014):76-81.
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