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Reduction mechanism of titanomagnetite concentrate by hydrogen
Sun, Haoyan1,2; Wang, Jingsong1; Han, Yihua1; She, Xuefeng1; Xue, Qingguo1
2013-12-10
Source PublicationINTERNATIONAL JOURNAL OF MINERAL PROCESSING
Volume125Issue:0Pages:122-128
AbstractTitanomagnetite concentrate was reduced by H-2-Ar gas mixtures in a laboratory fixed bed reactor at the temperatures from 1123 to 1323 K. The effects of reductive conditions on the reduction and metallization degrees were studied, including reduction temperature, reduction time and hydrogen content. And the characteristics of reduced samples were analyzed by X-ray diffraction (XRD), backscattered scanning electron (BSE) and energy dispersive spectrometer (EDS). Results have shown that both the reduction and metallization degrees increased with the increase of temperature and hydrogen content. Due to the low iron oxides content and the high impurities content such as magnesium oxide that baffled the reduction of Fe2+ in TIM concentrate, the reduction degree of TIM concentrate is lower than that of TIM ironsand at the same reduction condition. Above 1123 K, the reduction is mainly controlled by interfacial chemical reaction in the whole reduction process and the reduction path is suggested as follows:
KeywordTitanomagnetite Concentrate Reduction Hydrogen Reduction Path Reduction Kinetics
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS KeywordOXYGEN PARTIAL PRESSURES ; CARBON-MONOXIDE ; METALLURGICAL PROCESSES ; NATURAL ILMENITE ; PHASE-RELATIONS ; 1373 K ; IRON ; ORE ; SLAG ; KINETICS
WOS Research AreaEngineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectEngineering, Chemical ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000329144500017
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13424
Collection研究所(批量导入)
Affiliation1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, State Key Lab Adv Met, Beijing 100086, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Sun, Haoyan,Wang, Jingsong,Han, Yihua,et al. Reduction mechanism of titanomagnetite concentrate by hydrogen[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2013,125(0):122-128.
APA Sun, Haoyan,Wang, Jingsong,Han, Yihua,She, Xuefeng,&Xue, Qingguo.(2013).Reduction mechanism of titanomagnetite concentrate by hydrogen.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,125(0),122-128.
MLA Sun, Haoyan,et al."Reduction mechanism of titanomagnetite concentrate by hydrogen".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 125.0(2013):122-128.
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