Abstract: The iron ore in Hubei province is chlorite type magnetite ore, dissemination size of this iron ore is fine and grade is only 12.69%,iron concentrate grade is hard above 60% by using single magnetic separation method. Through experiment of stage grinding-low intensity magnetic separation-reverse flotation process was done on this magnetite, iron concentrate of grade 63.72% and recovery rate 42.48% were obtained, provided reference for development and utilization of this kind of iron ore resource.

Key words: Oolitic magnetite, Chlorite, Stage-grinding and dressing