The invention relates to a method for flotation of
rare earth from Baiyunebo
tailings and belongs to the field of ore dressing. The method is characterized by adopting the following steps: firstly, performing ore
grinding on the Baiyunebo
tailings till the
tailings in the particle size of -200 meshes account for above 95%; then performing pulp mixing and flotation on the tailings subjected to the ore
grinding, wherein the flotation comprises rougher flotation, concentration and
scavenging, and the series of the flotation is determined according to the grade of the
rare earth in the tailings and the final requirements on the grade of
rare earth concentrate; and sequentially returning middlings generated by the flotation to the upper stage of the flotation. The adopted
reagent system is as follows: water glass is taken as an inhibitor, a
hydroxamic acid type collector is taken as the collector, and No.2 oil or No. 318 oil is taken as a
foaming agent. The method is simple, the production cost is low, the
pollution is avoided, the
recovery rate of the rare earth is high, the finally obtained tailings can also be used as the
raw material for separating other minerals and the comprehensive utilization of resources is realized.