Magnetite mainly includes: single magnetite ore, vanadium-titanium magnetite ore, magnetite-bearing mixed ore and magnetite-bearing polymetallic symbiotic ore. Magnetite is a strong magnetic product and the beneficiation usually relies on the weak magnetic separation process:
A、Single weak magnetic separation process: it is suitable for processing single magnetite ore with simple mineral composition. It can be further divided into two categories: “continuous grinding-weak magnetic separation” process and “stage grinding-stage selection” process.
B、Weak magnetic separation-flotation process: it is suitable for treating associated sulfides. According to the nature of the ore, it is further divided into two types: “first magnetic back floating” and “first floating back magnetic”.
C、Weak magnetic-strong magnetic process: suitable for processing mixed ore with low magnetic properties.
D、Weak magnetic-strong magnetic-flotation process: suitable for treating multi-metal symbiotic iron ore.