Coupling relationship between multicomponent recovery of rare earth tailings

About 90%rare earth minerals and many other valuable minerals are heaped as iron tailings without comprehensive utilization.In order to comprehensively recover these valuable minerals,in a view of the valuable ore type of Baotou Steel tailing and embedded features,valuable components flow and their...

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Bibliographic Details
Published in:稀有金属：英文版 2017 (3), p.220-228
Main Author: Yue Zhang Hai Lin Ying-Bo Dong Xiao-Fang Xu Xin Wang Yue-Jiao Gao
Format: Article
Language:English
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Summary:About 90%rare earth minerals and many other valuable minerals are heaped as iron tailings without comprehensive utilization.In order to comprehensively recover these valuable minerals,in a view of the valuable ore type of Baotou Steel tailing and embedded features,valuable components flow and their respective recovery coupling relationship in beneficiation flowsheet were analyzed;process flows and parameters which could give consideration to four kinds of components were determined.TFe,rare earth oxide(REO),niobium and fluorite recoveries could reach 72.70%,81.84%,78.58%and60.18%in low-intensity/high-intensity magnetic separation,respectively.High-intensity magnetic concentration was treated by REO direct flotation;the recovery is75.43%,on the base of which Fe could be separated completely from Nb.The underflow was treated by reduction roasting-low-intensity magnetic separation.And the relationship between the recoveries of these valuable components was also discussed.
ISSN:1001-0521
1867-7185