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A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: NaOH molten salt roasting and water leaching processes
Chen, Desheng1,2; Zhao, Longsheng1,2; Liu, Yahui1,2; Qi, Tao1,2; Wang, Jianchong1,2; Wang, Lina1,2
2013-01-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
Volume244Issue:0Pages:588-595
AbstractA novel process for recovering iron, titanium, and vanadium from titanomagnetite concentrates has been developed. In the present paper, the treatment of rich titanium-vanadium slag by NaOH molten salt roasting and water leaching processes is investigated. In the NaOH molten salt roasting process, the metallic iron is oxidized into ferriferous oxide, MgTi2O5 is converted to NaCl-type structure of Na2TiO3, and M3O5 (M = Ti, Mg, Fe) is converted to alpha-NaFeO2-type structure of NaMO2, respectively. Roasting temperature and NaOH-slag mass ratio played a considerable role in the conversion of titanium in the rich titanium-vanadium slag during the NaOH molten salt roasting process. Roasting at 500 degrees C for 60 min and a 1:1 NaOH-slag mass ratio produces 96.3% titanium conversion. In the water leaching process, the Na+ was exchanged with H+, Na2TiO3 is converted to undefined structure of H2TiO3, and NaMO2 is converted to alpha-NaFeO2-type structure of HMO2. Under the optimal conditions, 87.3% of the sodium, 42.3% of the silicon, 43.2% of the aluminum, 22.8% of the manganese, and 96.6% of the vanadium are leached out. Crown Copyright (c) 2012 Published by Elsevier B.V. All rights reserved.
KeywordTitanomagnetite Concentrates Rich Titanium-vanadium Slag Naoh Molten Salt Roasting Water Leaching
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS KeywordSODIUM-HYDROXIDE ; SLAG ; DECOMPOSITION
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS IDWOS:000315001000069
Citation statistics
Cited Times:77[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13422
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
GB/T 7714
Chen, Desheng,Zhao, Longsheng,Liu, Yahui,et al. A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: NaOH molten salt roasting and water leaching processes[J]. JOURNAL OF HAZARDOUS MATERIALS,2013,244(0):588-595.
APA Chen, Desheng,Zhao, Longsheng,Liu, Yahui,Qi, Tao,Wang, Jianchong,&Wang, Lina.(2013).A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: NaOH molten salt roasting and water leaching processes.JOURNAL OF HAZARDOUS MATERIALS,244(0),588-595.
MLA Chen, Desheng,et al."A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: NaOH molten salt roasting and water leaching processes".JOURNAL OF HAZARDOUS MATERIALS 244.0(2013):588-595.
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