Abstract: The contents of REO are 1.92% in rare earth mine of GanSu province.The fineness of rare earth minerals calcium oxysilica,direct fluorocarbon calcium cerium ore,fluorocarbon calcium cerium ore is very fine in ore,the weighted average of REO is 54.88% in these minerals,which means the theoretical content of REO is only 54.88%.The experimental researches of minerals processing were carried out,which determine the flowsheet to development and utilization the ore.The results shown: high intensity magnetic separation and gravity concentration are not fit to throw away tailings in advance for the ore.The flowsheet of rough grindingflotationregrindinghigh intensity magnetic separation was use to process the ore.The grade and recovery of rare earth concentrate and rare earth secondary concentrate are 23.89%,64.70% and 532%,11.62% respectively,the total recovery of rare earth is 76.32%.Due to the grade of REO in concentrate,the tests should be needed to upgrading and reducing impurities in the future.

Key words: Rare earth, Rare earth fluorocarbonate, Flotation, High intensity magnetic separation