CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
A Clean and Efficient Method for Recovery of Vanadium from Vanadium Slag: Nonsalt Roasting and Ammonium Carbonate Leaching Processes
Li, Meng1,2,3; Zheng, Shili2; Liu, Biao2; Wang, Shaona2; Dreisinger, D. B.3; Zhang, Yang2; Du, Hao2,4; Zhang, Yi2
2017
Source PublicationMINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
ISSN0882-7508
Volume38Issue:4Pages:228-237
Abstract

A cleaner method has been developed for the extraction of vanadium from vanadium slag. Compared to the traditional alkaline salts roasting followed by the water leaching process, in the nonsalt roasting process because no additives are added, the chromium spinel in the raw vanadium slag will not be converted to carcinogenic chromate salts and exhaust gas will not be produced. The ammonium metavanadate is precipitated from the water leach solution. The wastewater from the vanadate precipitation process can be recycled into the leaching process. The leaching residue can be comprehensively utilized in conjunction with an iron-making process using blast furnace. The nonsalt roasting mechanism was systematically investigated in a laboratory study. The XRD and morphology analysis of roasted vanadium slag showed that the oxidation of vanadium spinel occurred in the following steps: (1) the destruction of vanadium spinel and the formation of solid solution of Fe2O3V2O3; (2) the oxidation of solid solution of Fe2O3V2O3 to Fe2O3V2O4 and a portion of the V(IV) in the Fe2O3V2O4 was reacted with basic oxide such as MgO to generate the low-valence vanadate Mg2VO4; (3) the formation by further oxidation of highest-valence vanadates Mn2V2O7 and Mg2V2O7. The effects of particle size, oxygen concentration, gas flow rate, and temperature on vanadium recovery were investigated. Simultaneously, the effects of leaching variables, including ammonium carbonate concentration and temperature, were examined. The thermodynamics of the system are also reported.

KeywordAmmonium Carbonate Solution Nonsalt Roasting Roasting And Leaching Mechanism Vanadium
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1080/08827508.2017.1288117
Indexed BySCI
Language英语
WOS KeywordOXIDATION ; EXTRACTION ; KINETICS ; FEV2O4 ; IRON
WOS Research AreaMetallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMetallurgy & Metallurgical Engineering ; Mining & Mineral Processing
Funding OrganizationNational Natural Science Foundation of China(51404227 ; Science and Technology Service Network Initiative for the Chinese Academy of Sciences(KFJ-SW-STS-148) ; China Scholarship Council (CSC)(201506080059) ; 91634111)
WOS IDWOS:000403425300002
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22704
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Northeastern Univ, Sch Met, Shenyang, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ British Columbia, Dept Mat Engn, Vancouver, BC, Canada
4.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, Meng,Zheng, Shili,Liu, Biao,et al. A Clean and Efficient Method for Recovery of Vanadium from Vanadium Slag: Nonsalt Roasting and Ammonium Carbonate Leaching Processes[J]. MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW,2017,38(4):228-237.
APA Li, Meng.,Zheng, Shili.,Liu, Biao.,Wang, Shaona.,Dreisinger, D. B..,...&Zhang, Yi.(2017).A Clean and Efficient Method for Recovery of Vanadium from Vanadium Slag: Nonsalt Roasting and Ammonium Carbonate Leaching Processes.MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW,38(4),228-237.
MLA Li, Meng,et al."A Clean and Efficient Method for Recovery of Vanadium from Vanadium Slag: Nonsalt Roasting and Ammonium Carbonate Leaching Processes".MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW 38.4(2017):228-237.
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