1. Single hematite
(1) Magnetization roasting and magnetic separation
Roasting magnetic separation is one of the effective methods for separating fine hematite (less than 0.02mm).
(2) Gravity separation, flotation, high intensity magnetic separation
Flotation is one of the common methods for separating fine hematite. Gravity separation and high-intensity magnetic separation are mainly used for the separation of coarse (2-20mm) and medium-sized hematite ores.
2. Polymetallic hematite
This kind of ore generally uses gravity separation, flotation, high intensity magnetic separation or other combined processes to recover iron ore, and flotation to recover phosphorus or sulfide.
3. Magnetite-hematite (siderite) iron ore
(1) Single Magnetite-hematite (siderite)
There are two methods for this kind of ore: one is the combined process of weak magnetic separation and gravity separation, flotation and high magnetic separation. The second is the combined process of magnetic roasting and magnetic separation or other mineral processing methods.
(2) Polymetallic magnetite-hematite (siderite) iron ore
The beneficiation method of this kind of ore is more complicated in iron ore. Generally, the combined process of weak magnetic separation and other mineral processing methods is used.