Beneficiation of coarse particulate iron ore by using a ...
Xray diffraction (XRD) (Bruker, Germany) was used to determine the main components of raw iron ore and the gangue after dry separation. As shown in Fig. 11, the main components of raw iron ore were hematite, and some magnesioferrite and magnetite. However, the main components of the gangues were sanidine and low magnesian calcite.