A、Roasting magnetic separation process: when the mineral composition is complicated and other mineral processing methods are difficult to obtain good selection indicators, the magnetization roasting method is often used.
B、The flotation process: anion collector positive flotation, cationic collector reverse flotation and anion collector reverse flotation three processes have been applied.
C、Weak magnetic-strong magnetic process: the traditional process of processing magnets-hematite mixed ore.
D、Weak magnetic-strong magnetic-flotation process: Due to the small amount of magnetite and other strong magnetic minerals in the ore, it is easy to cause blockage of the strong magnetic separator. Therefore, in the strong magnetic separation process, it is usually required that before the strong magnetic separation operation a weak magnetic separation operation is added to remove or sort the ferromagnetic minerals in the ore.