This is done by magnetic separation and fine milling.

Magnetite is supplied to the coal industry as a heavy separation medium (for coal washing).

Magnetite is produced as a by-product of the phosphate mining process of Foskor. At our processing plant in Phalaborwa, Idwala Magnetite upgrades this material by drying, magnetic separation and fine milling for supply to the coal industry as a heavy separation medium (for coal washing). The products range from products that are 75% finer than 45 micron up to 95% finer than 45 micron.