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Migration Behavior of the MgO and its Influence on the Reduction of Fe3O4-MgO Sinter
Pan, Feng1; Zhu, Qingshan1,2; Du, Zhan1; Sun, Haoyan1
2018
发表期刊ISIJ INTERNATIONAL
ISSN0915-1559
卷号58期号:4页码:652-659
摘要To investigate the migration behavior of MgO in oxidization-reduction of the vanadium titano-magnetite (VTM) ore and the influence of its content on the reduction, the solid solution was prepared by annealing MgO and Fe3O4 and its oxidized products were isothermally reduced under H-2-N-2 atmosphere. It was found that the sinter with high MgO content showed faster reduction rate due to the formation of pores and the increase of active sites caused by the diffusion of Mg2+ into Fe3O4. In contrast, the as-oxidized sinter with high MgO content showed the slowest reduction rate due to the formation of high content of (MgO)(x)(FeO)(1-x) (x=0.239-0.77) in the reduction process. MgO migrated from the solid solution and combined with partial Fe2O3 to form MgFe2O4 in the oxidization stage. In the reduction stage, MgO migrated outward as the oxidized sinter was reduced to Fe3O4 and FeO, while migrated inwards in the stage of Fe formation. MgO content in per mole formed FeO decreased as the sinter was reduced to FeO, while increased in solid solution during the Fe generation stage.
关键词Ironmaking Mgo Sinter Migration Behavior Reduction Iron Oxides Vanadium Titano-magnetite Ore
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.2355/isijinternational.ISIJINT-2017-566
收录类别SCI
语种英语
关键词[WOS]TITANIUM MAGNETITE ORE ; SOLID-STATE REDUCTION ; STRUCTURAL-CHANGES ; CARBON-MONOXIDE ; FLUIDIZED-BED ; HIGH-CHROMIUM ; VANADIUM ; TITANOMAGNETITE ; KINETICS ; ILMENITE
WOS研究方向Metallurgy & Metallurgical Engineering
WOS类目Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China(21736010 ; 51404228)
WOS记录号WOS:000430906200010
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24411
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Pan, Feng,Zhu, Qingshan,Du, Zhan,et al. Migration Behavior of the MgO and its Influence on the Reduction of Fe3O4-MgO Sinter[J]. ISIJ INTERNATIONAL,2018,58(4):652-659.
APA Pan, Feng,Zhu, Qingshan,Du, Zhan,&Sun, Haoyan.(2018).Migration Behavior of the MgO and its Influence on the Reduction of Fe3O4-MgO Sinter.ISIJ INTERNATIONAL,58(4),652-659.
MLA Pan, Feng,et al."Migration Behavior of the MgO and its Influence on the Reduction of Fe3O4-MgO Sinter".ISIJ INTERNATIONAL 58.4(2018):652-659.
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