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A novel method to extract vanadium from high-grade vanadium slag: non-salt roasting and alkaline leaching
Liu, Biao1; Meng, Lipeng2; Zheng, Shili1; Li, Meng3; Wang, Shaona1
2018-07-01
Source PublicationPHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING
ISSN1643-1049
Volume54Issue:3Pages:657-667
Abstract

A new method using non-salt roasting-alkaline leaching to treat vanadium slag was proposed in this study. The V(III) in vanadium slag is oxidized to V(V) by roasting and the latter can be effectively leached out as vanadate by alkaline leaching. This method possesses distinct advantage of being able to treat high-grade vanadium slag. For the South Africa high-grade vanadium slag, the maximum vanadium recovery of 98% was achieved when the reaction conditions were roasting temperature of 850 degrees C, roasting time of 2 h, alkali concentration of 30 wt. %, leaching temperature of 210 degrees C, and leaching time of 2 h. The roasting and leaching mechanisms have been well elucidated based on the XRD and SEM analysis results. The phases transitions of vanadium slag were clearly presented. This work has laid the foundation for the industrial application of non-salt roasting-alkaline leaching and provided new insights into effective extraction of high-grade vanadium slag.

KeywordHigh-grade Vanadium Slag Cleaner Production Non-salt Roasting Alkaline Leaching Mechanisms
DOI10.5277/ppmp1857
Language英语
WOS KeywordKinetics ; Chromium
Funding ProjectNational Natural Science Foundation of China[51404227] ; National Natural Science Foundation of China[51604254] ; National Natural Science Foundation of China[91634111] ; Science and Technology Service Network Initiative for the Chinese Academy of Sciences[KFJ-SW-STS-148]
WOS Research AreaChemistry ; Mining & Mineral Processing
WOS SubjectChemistry, Physical ; Mining & Mineral Processing
Funding OrganizationNational Natural Science Foundation of China ; Science and Technology Service Network Initiative for the Chinese Academy of Sciences
WOS IDWOS:000442776200005
PublisherOFICYNA WYDAWNICZA POLITECHNIKI WROCLAWSKIEJ
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25802
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Shaona
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
3.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu, Biao,Meng, Lipeng,Zheng, Shili,et al. A novel method to extract vanadium from high-grade vanadium slag: non-salt roasting and alkaline leaching[J]. PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING,2018,54(3):657-667.
APA Liu, Biao,Meng, Lipeng,Zheng, Shili,Li, Meng,&Wang, Shaona.(2018).A novel method to extract vanadium from high-grade vanadium slag: non-salt roasting and alkaline leaching.PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING,54(3),657-667.
MLA Liu, Biao,et al."A novel method to extract vanadium from high-grade vanadium slag: non-salt roasting and alkaline leaching".PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING 54.3(2018):657-667.
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