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Carbothermic Reduction of Vanadium-Titanium Magnetite in Molten NaOH
Shi, Li-Yu1,2,3; Zhen, Yu-Lan1,2; Chen, De-Sheng1,2; Wang, Li-Na1,2; Qi, Tao1,2

The carbothermic reduction experiments were carried out for vanadium-titanium magnetite in alkaline molten in argon atmosphere at high temperatures. The effects of reduction temperature, carbon content and addition agent on the formation of pig iron containing vanadium were studied by X-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD patterns of reduced slags results showed that Fe phase disappeared and the main phase of the reduced sample were Na16Ti10O28, CaTiO3, and Na1.66AlSiO4.33 when the reduction temperature was more than 1 473 K when cooled in the air. The SEM pictures show that most of V exists in the crystalline phase, such as Na16Ti10O28, NaAlSiO4 and CaTiO3, when quenched in air slowly; and the vanadium is dispersed in the slag phase when cooled by water quickly. Furthermore, the effects of additive NaOH on the reduction were also studied, results show that NaOH could enhance the separation of iron and slag, promote the transformation of vanadium and titanium and inhibit the vanadium enrichment in metal phase.

KeywordVanadium-titanium Magnetite Carbothermic Reduction Alkaline Molten Pig Iron Containing Vanadium
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS KeywordIlmenite Reduction ; Natural Ilmenite ; Kinetics ; Mechanism ; Graphite ; Viscosity ; Carbon ; Ore
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China(21506233 ; Chinese Academy of Sciences(QYZDJSSW-JSC021) ; Science and Technology Service Network Initiative(KFJ-STS-ZDTP-040) ; Nonprofit Industry Research Subject of Environmental Protection(201509053) ; 21606241)
WOS IDWOS:000430906200007
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Shi, Li-Yu,Zhen, Yu-Lan,Chen, De-Sheng,et al. Carbothermic Reduction of Vanadium-Titanium Magnetite in Molten NaOH[J]. ISIJ INTERNATIONAL,2018,58(4):627-632.
APA Shi, Li-Yu,Zhen, Yu-Lan,Chen, De-Sheng,Wang, Li-Na,&Qi, Tao.(2018).Carbothermic Reduction of Vanadium-Titanium Magnetite in Molten NaOH.ISIJ INTERNATIONAL,58(4),627-632.
MLA Shi, Li-Yu,et al."Carbothermic Reduction of Vanadium-Titanium Magnetite in Molten NaOH".ISIJ INTERNATIONAL 58.4(2018):627-632.
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