Experimental Research on Mineral processing of Huadan Oolitic Hematite in Sichuan

Huadan oolitic hematite in Liangshan district is similar with that in Xuanlong.The particle size of oolitic is relatively big while the content of phosphorus is relatively low.The ore of the oolitic hematite is gangue impurity,which is made up of a concentric lamina with interphase or mixed hematite and gangue.The boundary line of hematite and gangue is not clear,belonging to this kind of ore that is easy to break and grind but hard to separate.According to its characteristics,the experimental research on mineral processing of this ore was carried on under the reasonable condition of grinding fineness,adopting the combined technological flowsheet of gravity-magnetic separation.Finally,the iron grade can reach 55.07%,the yield 43.69% and the recovery 66.27%.it provides a new technical basis for the development and utilization of Huadan oolitic hematite.