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Enrichment of Niobium and Titanium from Kaolin Using an Acid-Alkali Leaching Process
NING WANG;  HANNIAN GU;  HANJIE WEN;  SHIRONG LIU
2018
发表期刊Metallurgical And Materials Transactions B-Process Metallurgy And Materials Processing Science
卷号49期号:6页码:3552-3558
摘要

Niobium is a strategic resource because it is useful in a wide number of applications and its global distribution is uneven. It has been reported that kaolin clay from the bottom of the Xuanwei Formation, the Late Permian sequences in southwest China, contains Nb. In this paper, the major, trace, and mineral compositions of kaolin clay were characterized using XRF, ICP-MS, and XRD. The results show that it is mainly composed of kaolinite, anatase, and rutile, with a chemical composition of Al2O3 34.38pct, SiO2 39.97pct, TiO2 8.79pct, Fe2O3 3.24pct, and Nb 491g/g. A process including calcination treatment and acid-alkali leaching with HCl and NaOH was employed to separate Al, Fe, and Si in a leaching solution and to enrich Nb and Ti in the residue. The experimental results indicated that the reaction temperature played a vital role for Al and Fe extractions from acid leaching, while the concentration of alkali was the key factor for Si extraction. Under the optimal conditions, the contents of Nb and Ti in the final product were 4280g/g and 80.5pct, respectively.

收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/8930
专题地球内部物质高温高压实验室
作者单位1.the Key Laboratory of High-temperature and High-pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
2.the State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
3.the State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081,
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NING WANG;HANNIAN GU;HANJIE WEN;SHIRONG LIU. Enrichment of Niobium and Titanium from Kaolin Using an Acid-Alkali Leaching Process[J]. Metallurgical And Materials Transactions B-Process Metallurgy And Materials Processing Science,2018,49(6):3552-3558.
APA NING WANG;HANNIAN GU;HANJIE WEN;SHIRONG LIU.(2018).Enrichment of Niobium and Titanium from Kaolin Using an Acid-Alkali Leaching Process.Metallurgical And Materials Transactions B-Process Metallurgy And Materials Processing Science,49(6),3552-3558.
MLA NING WANG;HANNIAN GU;HANJIE WEN;SHIRONG LIU."Enrichment of Niobium and Titanium from Kaolin Using an Acid-Alkali Leaching Process".Metallurgical And Materials Transactions B-Process Metallurgy And Materials Processing Science 49.6(2018):3552-3558.
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