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.
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