CAS OpenIR  > 多相复杂系统国家重点实验室
Influence of Reduction Condition on the Morphology of Newly Formed Metallic Iron During the Fluidized Bed Reduction of Fine Iron Ores and its Corresponding Agglomeration Behavior
Du, Zhan1,2; Zhu, Qingshan1; Fan, Chuanlin1; Pan, Feng1; Li, Hongzhong1; Xie, Zhaohui1
2016-06-01
Source PublicationSTEEL RESEARCH INTERNATIONAL
ISSN1611-3683
Volume87Issue:6Pages:789-797
Abstract

The fine iron ores from Chile are reduced in a laboratory fluidized bed at 973-1173 K with CO-H-2-CO2 mixtures to investigate the influence of reduction condition on the morphology of newly formed metallic iron and its corresponding agglomeration behavior. The results reveal that the addition of H-2 in CO accelerates the moving rate of the Fe/Fe1-xO interface and increases the amount of the iron nucleus formed during the initial reduction period, which induce the transformation of iron morphology from fibrous to dense. The presence of CO2 in CO makes the fibrous iron shorter and sparser, especially when the content of CO2 is 30% (by volume), the iron appears as "cactus-like." The increase of reduction temperature makes the fibrous iron stronger and more active. The sticking index indicates that the long and strong iron whiskers are prone to form stable agglomerates even at a low metallization degree, but the dense iron trends to behave separate. Furthermore, based on the precipitation mechanism of iron proposed by the authors, it is manifested that the agglomeration behavior of the fine iron ores could be controlled by pre-reduction in H-2-rich reducing gas (H-2/(H-2 + CO) >= 30%, by volume).

KeywordMorphology Of Newly Formed Metallic Iron Agglomeration Behavior Fluidized Bed Reduction Fine Iron Ores
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/srin.201500240
Indexed BySCI
Language英语
WOS KeywordWHISKER FORMATION ; OXIDE COMPACT ; STICKING BEHAVIOR ; GASEOUS REDUCTION ; REDUCING GAS ; GROWTH ; MECHANISM ; PELLETS ; FE2O3 ; MGO
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational Outstanding Youth Science Fund Project of NSFC(21325628)
WOS IDWOS:000385341300012
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21571
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
Du, Zhan,Zhu, Qingshan,Fan, Chuanlin,et al. Influence of Reduction Condition on the Morphology of Newly Formed Metallic Iron During the Fluidized Bed Reduction of Fine Iron Ores and its Corresponding Agglomeration Behavior[J]. STEEL RESEARCH INTERNATIONAL,2016,87(6):789-797.
APA Du, Zhan,Zhu, Qingshan,Fan, Chuanlin,Pan, Feng,Li, Hongzhong,&Xie, Zhaohui.(2016).Influence of Reduction Condition on the Morphology of Newly Formed Metallic Iron During the Fluidized Bed Reduction of Fine Iron Ores and its Corresponding Agglomeration Behavior.STEEL RESEARCH INTERNATIONAL,87(6),789-797.
MLA Du, Zhan,et al."Influence of Reduction Condition on the Morphology of Newly Formed Metallic Iron During the Fluidized Bed Reduction of Fine Iron Ores and its Corresponding Agglomeration Behavior".STEEL RESEARCH INTERNATIONAL 87.6(2016):789-797.
Files in This Item:
File Name/Size DocType Version Access License
Influence of Reducti(1580KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Du, Zhan]'s Articles
[Zhu, Qingshan]'s Articles
[Fan, Chuanlin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Du, Zhan]'s Articles
[Zhu, Qingshan]'s Articles
[Fan, Chuanlin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Du, Zhan]'s Articles
[Zhu, Qingshan]'s Articles
[Fan, Chuanlin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.