X-ray diffraction pattern of iron ore tailings. The chemical analyses of the used raw materials performed by X-ray fluorescence (XRF, Axios, Netherlands) are presented in Table 1 . The results show that the IOT primarily consist of SiO 2, Fe 2 O 3, MgO and CaO, specifically, contains high-MgO and low-SiO 2 compared with other reported IOT ...
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