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Representation of Oxidation Ability for Metallurgical Slags Based on the Ion and Molecule Coexistence Theory
Alternative TitleSteel Res. Int.
Yang, Xue-min1; Zhang, Meng1,2; Zhang, Jian-liang3; Li, Peng-cheng1,3; Li, Jin-yan1,3; Zhang, Jian3
2014-03-01
Source PublicationSTEEL RESEARCH INTERNATIONAL
ISSN1611-3683
Volume85Issue:3Pages:347-375
AbstractThe defined oxidation ability of metallurgical slags based on the ion and molecule coexistence theory (IMCT), i.e., the comprehensive mass action concentration NFetO of iron oxides, has been verified through comparing the calculated NFetO and the reported activity aFetO of iron oxides in the selected FetO-containing slag systems. To calculate the defined comprehensive mass action concentration NFetO of iron oxides in the selected slag systems, a thermodynamic model for calculating the mass action concentrations of structural units or ion couples in CaO-SiO2-MgO-FeO-Fe2O3-MnO-Al2O3-P2O5 type slags, i.e., the IMCT-N-i thermodynamic model, has been developed. The defined comprehensive mass action concentration NFetO of iron oxides is more accurate than the measured activity aFetO of iron oxides to represent the slag oxidation ability of the selected FetO-containing slag systems. The calculated comprehensive mass action concentration NFetO of iron oxides or the reported activity aFetO of iron oxides in the selected FetO-containing slag systems shows an increase tendency with an increase of optical basicity of the slags by taking FeO as 0.93 and Fe2O3 as 0.69, or FeO as 1.0 and Fe2O3 as 0.75, rather than by taking FeO as 0.51 and Fe2O3 as 0.48. The slag oxidation ability represented by the defined comprehensive mass action concentration NFetO of iron oxides or the measured activity aFetO of iron oxides is not only decided by the effects of iron oxides, but also by the comprehensive effects of both iron oxides and basic oxides as CaO or MgO or MnO in the selected FetO-containing slag systems.; The defined oxidation ability of metallurgical slags based on the ion and molecule coexistence theory (IMCT), i.e., the comprehensive mass action concentration NFetO of iron oxides, has been verified through comparing the calculated NFetO and the reported activity aFetO of iron oxides in the selected FetO-containing slag systems. To calculate the defined comprehensive mass action concentration NFetO of iron oxides in the selected slag systems, a thermodynamic model for calculating the mass action concentrations of structural units or ion couples in CaO-SiO2-MgO-FeO-Fe2O3-MnO-Al2O3-P2O5 type slags, i.e., the IMCT-N-i thermodynamic model, has been developed. The defined comprehensive mass action concentration NFetO of iron oxides is more accurate than the measured activity aFetO of iron oxides to represent the slag oxidation ability of the selected FetO-containing slag systems. The calculated comprehensive mass action concentration NFetO of iron oxides or the reported activity aFetO of iron oxides in the selected FetO-containing slag systems shows an increase tendency with an increase of optical basicity of the slags by taking FeO as 0.93 and Fe2O3 as 0.69, or FeO as 1.0 and Fe2O3 as 0.75, rather than by taking FeO as 0.51 and Fe2O3 as 0.48. The slag oxidation ability represented by the defined comprehensive mass action concentration NFetO of iron oxides or the measured activity aFetO of iron oxides is not only decided by the effects of iron oxides, but also by the comprehensive effects of both iron oxides and basic oxides as CaO or MgO or MnO in the selected FetO-containing slag systems.
KeywordSlag Oxidation Ability Comprehensive Mass Action Concentration Of Iron Oxides Activity Of Iron Oxides Thermodynamic Model Structural Units Ion Couples Ion And Molecule Coexistence Theory
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/srin.201200138
URL查看原文
Indexed BySCI
Language英语
WOS KeywordQUASI-CHEMICAL MODEL ; CAO-SIO2-MGO-AL2O3 IRONMAKING SLAGS ; FEO-CONTAINING SLAGS ; THERMODYNAMIC ACTIVITIES ; SULFIDE CAPACITY ; OXIDE ACTIVITY ; LIQUID-IRON ; SYSTEM ; STEELMAKING ; CAO-FEO-SIO2
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000332335300006
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11012
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Beijing Met Equipment Res Design Inst Co Ltd, China Met Grp Corp, Beijing 100029, Peoples R China
3.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Yang, Xue-min,Zhang, Meng,Zhang, Jian-liang,et al. Representation of Oxidation Ability for Metallurgical Slags Based on the Ion and Molecule Coexistence Theory[J]. STEEL RESEARCH INTERNATIONAL,2014,85(3):347-375.
APA Yang, Xue-min,Zhang, Meng,Zhang, Jian-liang,Li, Peng-cheng,Li, Jin-yan,&Zhang, Jian.(2014).Representation of Oxidation Ability for Metallurgical Slags Based on the Ion and Molecule Coexistence Theory.STEEL RESEARCH INTERNATIONAL,85(3),347-375.
MLA Yang, Xue-min,et al."Representation of Oxidation Ability for Metallurgical Slags Based on the Ion and Molecule Coexistence Theory".STEEL RESEARCH INTERNATIONAL 85.3(2014):347-375.
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