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Leaching of vanadium, sodium, and silicon from molten V-Ti-bearing slag obtained from low-grade vanadium-bearing titanomagnetite
Zhu, Yuan-yuan1,2,3; Yi, Ling-yun2,3; Zhao, Wei2,3; Chen, De-sheng2,3; Zhao, Hong-xin2,3; Qi, Tao2,3
2016-08-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume23Issue:8Pages:898-905
AbstractThe water leaching process of vanadium, sodium, and silicon from molten vanadium-titanium-bearing (V-Ti-bearing) slag obtained from low-grade vanadium-bearing titanomagnetite was investigated systematically. The results show that calcium titanate, sodium aluminosilicate, sodium oxide, silicon dioxide and sodium vanadate are the major components of the molten V-Ti-bearing slag. The experimental results indicate that the liquid-solid (L/S) mass ratio significantly affects the leaching process because of the respective solubilities and diffusion rates of the components. A total of 83.8% of vanadium, 72.8% of sodium, and 16.1% of silicon can be leached out via a triple counter-current leaching process under the optimal conditions of a particle size below 0.074 mm, a temperature of 90A degrees C, a leaching time of 20 min, an L/S mass ratio of 4:1, and a stirring speed of 300 r/min. The kinetics of vanadium leaching is well described by an internal diffusion-controlled model and the apparent activation energy is 11.1 kJ/mol. The leaching mechanism of vanadium was also analyzed.
KeywordTitanomagnetite Vanadium Metallurgy Leaching Kinetics Sodium Silicon Leaching Rate
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s12613-016-1305-1
Indexed BySCI
Language英语
WOS KeywordEXTRACTION ; OXIDATION ; RECOVERY ; ACID
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
Funding OrganizationNational Natural Science Foundation of China(51504230 ; National Science Foundation for Distinguished Young Scholars of China(51125018) ; National Key Technologies R&D Program of China(2014BAC03B01) ; 21506233)
WOS IDWOS:000381134000005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21286
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Yuan-yuan,Yi, Ling-yun,Zhao, Wei,et al. Leaching of vanadium, sodium, and silicon from molten V-Ti-bearing slag obtained from low-grade vanadium-bearing titanomagnetite[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2016,23(8):898-905.
APA Zhu, Yuan-yuan,Yi, Ling-yun,Zhao, Wei,Chen, De-sheng,Zhao, Hong-xin,&Qi, Tao.(2016).Leaching of vanadium, sodium, and silicon from molten V-Ti-bearing slag obtained from low-grade vanadium-bearing titanomagnetite.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,23(8),898-905.
MLA Zhu, Yuan-yuan,et al."Leaching of vanadium, sodium, and silicon from molten V-Ti-bearing slag obtained from low-grade vanadium-bearing titanomagnetite".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 23.8(2016):898-905.
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