关键词: 稀土矿物, 磁铁矿, 弱磁选, 浮选

Abstract: For tailings from inverse flotation of iron ore concentrates in Baogang Concentrator，the grinding fineness tests of iron concentration with low intensity magnetic separation and the dosage volume tests of rougher flotation reagent for rare earth are carried out. The test results show that rare-earth concentrate with REO grade of 58.12%，REO recoveries of 64.74%，and Fe grade of 5.70% and rare earth concentrates and iron ore concentrate with Fe grade of 64.47%，Fe recovery of 56.51% and rare earth REO grade of 1.65% were finally obtained by the process of iron concentration with 3-stage grinding-low intensity magnetic separation，rare earth concentration with one roughing-three cleaning floatation，and tailing at the third stage back to the flow-sheet and then following by inverse floatation.

Key words: Rare-earth mineral, Magnetite, Low intensity magnetic separation, Floatation