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Phosphate enrichment mechanism in CaO-SiO2-FeO-Fe2O3-P2O5 steelmaking slags with lower binary basicity
Li, Jin-yan1; Zhang, Mei1; Guo, Min1; Yang, Xue-min2
2016-05-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume23Issue:5Pages:520-533
AbstractThe addition of silica to steelmaking slags to decrease the binary basicity can promote phosphate enrichment in quenched slag samples. In this study, we experimentally investigated phosphate enrichment behavior in CaO-SiO2-FeO-Fe2O3-P2O5 slags with a P2O5 content of 5.00% and the binary basicity B ranging from 1.0 to 2.0, where the (%Fe (t) O)/(%CaO) mass percentage ratio was maintained at 0.955. The experimental results are explained by the defined enrichment degree of solid solution 2CaO center dot SiO2-3CaO center dot P2O5 (C2S-C3P), where is a component of the developed ion and molecule coexistence theory (IMCT)-N (i) model for calculating the mass action concentrations N (i) of structural units in the slags on the basis of the IMCT. The asymmetrically inverse V-shaped relation between phosphate enrichment and binary basicity B was observed to be correlated in the slags under applied two-stage cooling conditions. The maximum content of P2O5 in the C2S-C3P solid solution reached approximately 30.0% when the binary basicity B was controlled at 1.3.
KeywordPhosphates Enrichment Mechanisms Steelmaking Slags Basicity
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s12613-016-1263-7
Indexed BySCI
Language英语
WOS KeywordADJUSTED CONVERTER SLAG ; PHOSPHORUS ENRICHMENT ; CAO-SIO2-FETO SLAGS ; PARTICLES ; OXIDATION ; BEHAVIOR ; PHASE ; P2O5 ; CAO
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
Funding OrganizationNational Basic Research Program of China(2014CB643401) ; National Natural Science Foundation of China(51372019 ; 51174186 ; 51072022)
WOS IDWOS:000376284500004
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21077
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, State Key Lab Adv Met, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Jin-yan,Zhang, Mei,Guo, Min,et al. Phosphate enrichment mechanism in CaO-SiO2-FeO-Fe2O3-P2O5 steelmaking slags with lower binary basicity[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2016,23(5):520-533.
APA Li, Jin-yan,Zhang, Mei,Guo, Min,&Yang, Xue-min.(2016).Phosphate enrichment mechanism in CaO-SiO2-FeO-Fe2O3-P2O5 steelmaking slags with lower binary basicity.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,23(5),520-533.
MLA Li, Jin-yan,et al."Phosphate enrichment mechanism in CaO-SiO2-FeO-Fe2O3-P2O5 steelmaking slags with lower binary basicity".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 23.5(2016):520-533.
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