Coupling relationship between multicomponent recovery of rare earth tailings
Coupling relationship between multicomponent recovery of rare earth tailings
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DOI：
10.1007/s12598-015-0489-2
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发表时间：
2017-03
期刊：
影响因子：
8.8
通讯作者：
Yue Zhang;H. Lin;Ying-bo Dong;Xiao-fang Xu;Xin Wang;Yue-Jiao Gao
中科院分区：
文献类型：
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作者：
Yue Zhang;H. Lin;Ying-bo Dong;Xiao-fang Xu;Xin Wang;Yue-Jiao Gao
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 % and 60.18 % in low-intensity/high-intensity magnetic separation, respectively. High-intensity magnetic concentration was treated by REO direct flotation; the recovery is 75.43 %, 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.
