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Direct Reduction Behaviors of Titanomagnetite Ore by Carbon Monoxide in Fluidized Bed
Sun, Haoyan1; Adetor, Ajala Adewole1,2; Wang, Zhen1; Pan, Feng1; Li, Li1
2016
Source PublicationISIJ INTERNATIONAL
ISSN0915-1559
Volume56Issue:6Pages:936-943
AbstractOn the background of the two stages short process of direct reduction - electric arc furnace melting separation, the gas-solid direct reduction behaviors of South Africa titanomagnetite ore particles by carbon monoxide in fluidized bed have been investigated. The results showed that, due to the lower apparent diffusion activation energy without the gas mass transfer among particles, the CO gas reduction of titanomagnetite in fluidized bed present much higher efficiency than the pellet reduction. Continuous solid solution formed by MgO and MnO in FeO can impede reduction through the barrier effect and increase the required CO reduction potential of 2FeO center dot TiO2 and FeO center dot TiO2 in titanomagnetite. The generated FeO would combine with FeO center dot TiO2 to form 2FeO center dot TiO2 in the reduction process and lower the metallization degree after the first reduction step of iron oxides in titanomagnetite. Finally, the relationship between the metallization degree and the equilibrium CO-CO2 gas reduction potential has been analyzed and established, with the impurities effect and the phase transformation taken into consideration.
KeywordTitanomagnetite Reduction Reduction Path Carbon Monoxide
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.2355/isijinternational.ISIJINT-2016-040
Indexed BySCI
Language英语
WOS KeywordTITANIA-FERROUS ORE ; METALLURGICAL PROCESSES ; ILMENITE ; MECHANISM ; KINETICS ; IRON ; CONCENTRATE ; GRAPHITE ; HYDROGEN
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China(51404228 ; Chinese Academy of Sciences - The World Academy of Sciences (CAS-TWAS) ; 51404226)
WOS IDWOS:000378189600004
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21158
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Sun, Haoyan,Adetor, Ajala Adewole,Wang, Zhen,et al. Direct Reduction Behaviors of Titanomagnetite Ore by Carbon Monoxide in Fluidized Bed[J]. ISIJ INTERNATIONAL,2016,56(6):936-943.
APA Sun, Haoyan,Adetor, Ajala Adewole,Wang, Zhen,Pan, Feng,&Li, Li.(2016).Direct Reduction Behaviors of Titanomagnetite Ore by Carbon Monoxide in Fluidized Bed.ISIJ INTERNATIONAL,56(6),936-943.
MLA Sun, Haoyan,et al."Direct Reduction Behaviors of Titanomagnetite Ore by Carbon Monoxide in Fluidized Bed".ISIJ INTERNATIONAL 56.6(2016):936-943.
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