Abstract: In order to confirm the utilization scheme of a highly oxidized siderite ore from Chongqing Province，the experimental study of the magnetic roasting-grinding-low intensity magnetic separation process was carried out.Under the conditions of roasting temperature at 800 ℃ for 50 min，the consumption of coal of 10%，the grind fineness of roasted product for 88% passing 200 mesh，low intensity magnetic separation of magnetic field intensity of 119.43 kA/m，low intensity magnetic concentrate with iron grade of 58.94%，and iron recovery of 76.38% were obtained.After SiO₂，the high contents of MgO，MnO and Al2O₃ in the weak magnetic separation concentrate are the factors that affect the iron grade of concentrate.

Key words: Siderite, Magnetic roasting, Low intensity magnetic separation