Flotation Reagent Study on Recovery of Rare Earth Flotation from Maoniuping Magnetic Tailings
The magnetic separation tailings from flotation rare earth of the Maniuping rare earth mine in Liangshan Prefecture,Sichuan Province contain more rare earth minerals,the average REO grade is about 6%.The impurities are mainly fluorite and barite.In order to effectively recover this part of rare earth minerals,a rare earth recovery experiment was conducted on the mine.The results showed that based on the synergistic effect of flotation reagents,a new flotation combination reagent was developed and used according to the mineral properties.The results show that:Using flotation to recover rare earth minerals from strong magnetic tailings,the loss of micro-fine rare earth minerals is avoided,and a rare earth concentrate with yield of 8.79%and REO grade of 65.52%is obtained.The closed-circuit rare earth recovery rate is 90.34%,and the grade of rare earth in flotation tailings is reduced to 0.61%.
magnetic tailingsrare earthrecovery processsynergistic effectrare earth flotation reagents
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