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Electroreduction mechanism and electrodeposition of ferric ions in CaO-SiO2-Al2O3-Fe2O3 slags at 1773 K
Liu, Junhao1,2,3,4; Zhang, Yaoyao1,2,3,4
2022-04-06
Source PublicationCANADIAN METALLURGICAL QUARTERLY
ISSN0008-4433
Pages6
AbstractThe reduction mechanism for electrodeposition of ferric ions (Fe3+) in molten oxide slags and the influence of different conditions on electrolysis of molten Fe2O3-containing CaO-Al2O3-SiO2 slags under constant current were investigated. Cyclic and square wave voltammetric analyses showed that the electrochemical reduction of Fe3+ in the molten slags involved reduction to Fe2+ and then Fe2+ reduction to Fe. When constant-current electrolysis was performed between a molybdenum cathode and a graphite anode, an iron-rich metallic phase formed at the cathode. Both the current efficiency and electrolysis rate increased with electrolysis current at a constant temperature. The current efficiency and electrolysis rate of high-calcium slag were higher than those of high-silicon slag.
KeywordReduction mechanism Fe2O3-containing slag electrochemical reduction constant-current electrolysis electrodeposition CaO-Al2O3-SiO2 slags current efficiency electrolysis rate
DOI10.1080/00084433.2022.2060600
Language英语
WOS KeywordCALIBRATION-FREE TECHNIQUE ; ELECTRICAL-CONDUCTIVITY ; HIGH-ACCURACY ; IRON-OXIDE ; MOLTEN ; ELECTROLYSIS ; OXYGEN ; REDUCTION ; FE2O3 ; ANODE
Funding ProjectNational Natural Science Foundation of China[52074255] ; National Natural Science Foundation of China[51704271]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000778466300001
PublisherTAYLOR & FRANCIS LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/52489
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Junhao
Affiliation1.Univ Sci & Technol China, Sch Rare Earths, Hefei, Peoples R China
2.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou, Peoples R China
3.Chinese Acad Sci, Natl Engn Res Ctr Green Recycling Strateg Met Res, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing, Peoples R China
4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, Junhao,Zhang, Yaoyao. Electroreduction mechanism and electrodeposition of ferric ions in CaO-SiO2-Al2O3-Fe2O3 slags at 1773 K[J]. CANADIAN METALLURGICAL QUARTERLY,2022:6.
APA Liu, Junhao,&Zhang, Yaoyao.(2022).Electroreduction mechanism and electrodeposition of ferric ions in CaO-SiO2-Al2O3-Fe2O3 slags at 1773 K.CANADIAN METALLURGICAL QUARTERLY,6.
MLA Liu, Junhao,et al."Electroreduction mechanism and electrodeposition of ferric ions in CaO-SiO2-Al2O3-Fe2O3 slags at 1773 K".CANADIAN METALLURGICAL QUARTERLY (2022):6.
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