Separate the Anshan-type Low-grade Hematite Ore With Process of Low-High Intensity Magnetic Separation and Reverse Flotation Method

According to the nature of the ore which containing hematite and magnetite,under the conditions,for example,ore grade is 24.07%,the fitst fineness of grinding -200 mesh is 50%, the second fineness of grinding -200 mesh is more than 93%, it is concluded that concentrating circuit consisting of first grind-Feebleness magnetic separation -high intensity magnetic separation, second grind-second-high intensity magnetic separation- reverse flotation. Ultimately, A concentrate with a productivity of 18.90%, a grade of 65.21% TFe and the recovery of 51.29%was yielded.