Leaching of vanadium, sodium, and silicon from molten V-Ti-bearing slag obtained from low-grade vanadium-bearing titanomagnetite

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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-yuan 1,2,3; Yi, Ling-yun 2,3; Zhao, Wei 2,3; Chen, De-sheng 2,3; Zhao, Hong-xin 2,3; Qi, Tao 2,3
刊名	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
	2016-08-01
卷号	23 期号:8 页码:898-905
关键词	titanomagnetite vanadium metallurgy leaching kinetics sodium silicon leaching rate
ISSN号	1674-4799
英文摘要	The 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.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
关键词[WOS]	EXTRACTION ; OXIDATION ; RECOVERY ; ACID
收录类别	SCI
语种	英语
WOS记录号	WOS:000381134000005
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/21286]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	1.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
推荐引用方式 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.