Abstract: Magnetic roasting, low intensity magnetic separation, reverse flotation process was carried out on an oolitic hematite, Enshi. The results showed that with 7% dosage of reducing agent, calcinations at 850 ℃ for 90 min, and the roasted products were grinded at fineness of 85% passing 0.074 mm for magnetic separation at 278.67 kA/m field intensity. Iron concentrate with iron grade of 63.78%, recovery of 58.72%, and 0.25% P can achieved through dealing magnetic concentrate with NaOH dosage of 1 500 g/t, starch dosage of 1 200 g/t, CaO dosage of 900 g/t, RA-715 dosage of 750 g/t, 2^# oil dosage of 20 g/t for reverse flotation process.

Key words: Oolitic hematite, Magnetic roasting, Low intensity magnetic separation, Reverse flotation