Magnetite formula: Fe3O4, it belongs oxide minerals magnetite ore, sponge iron meteorite ore structure usually has structure, granular mosaic structure, and it seems like three kinds of text message-like structure, there is little magnetite single, usually accompanied by surface oxidation half martite and martite.

Distribution of magnetite in the Northeast, North, and South Africa have, which is a typical representative of Northeast China Anshan mining, mainly in North China Hebei Xuanhua, Qian'an, Handan, and other places, is a typical representative of South Africa in Daye Iron Mine.

For magnetite beneficiation methods, due to its ferromagnetic, it is often by magnetic separation can be selected, but due also typically associated magnetite hematite or hematite illusion, so if it is not particularly rich magnetite set, it will with other beneficiation processes such as re-election, flotation, etc. used in conjunction.

Common magnetite beneficiation process description:

First, the crushing and screening stage

Magnetite iron ore crushing and screening and other similar, but for high-grade magnetite, usually a period of closed-circuit can be obtained qualified granularity ore, an extra paragraph may occur over crushed phenomenon, but also increase costs, but this magnetite usually small, a lot of magnetite or through three sections of open or closed three-stage crushing of ore to get qualified. In the phase of magnetite beneficiation crushing and screening equipment, mainly used are:

Second, the grinding stage

Magnetite grinding stage and some large-scale processing plant will be used from the mill, but the amount is usually treated indicators and beneficiation tests will be given access to some, the most common type or lattice-type ball mill, ball mill + overflow or simple lattice-type mill, grind to a particle size generally about -0.074mm grading spiral classifier, some currently selected test plant will directly cyclone and with the use of a ball mill, also achieved good results, and compared with the spiral classifier, reduce the beneficiation costs.

Third, the beneficiation stage

Magnetite beneficiation process is typically used are: weak magnetic separation, high intensity magnetic separation.

Intensity magnetic separation process applies to ferromagnetic magnetite, the process is simple and easy option for the weak magnetic magnetite, need to go through and then be strong magnetic roasting magnetic separation.

Beneficiation stage common to the magnetic separation equipment:

Application stage magnetic separation equipment advantage

Magnetic roller belt drive stage -