Chromium ore magnetic separation process

Chromium ore magnetic separation process

At present, more than 50 types of chromium containing minerals have been discovered in nature, belonging to the categories of oxides, chromates, and silicates; Chromite is currently the only mineral in industrial production, mainly composed of iron magnesium chromite, magnesium iron chromite, aluminum iron magnesium chromite, etc. The selectivity of chromite mainly depends on its grade, embedded particle size, and gangue composition. Currently, mineral processing methods include gravity separation, magnetic separation, electrical separation, flotation, roasting magnetic separation, etc.

Magnetic separation process: Chromite has weak magnetism, so it can be separated through magnetic separation; Magnetic separation can be divided into two situations: one is to use weak magnetic separation to select strong magnetic minerals from chromite, and the other is to use strong magnetic separation to recover chromite.

Process characteristics: simple process, mature equipment, and low pollution.

Typical beneficiation plant

The Suolunshan Chromium Ore Dressing Plant in Inner Mongolia mainly produces chromium spinel and magnesite, followed by carbonate minerals and small amounts of quartz, serpentine, mica, zircon kaolin, etc. The specific process is as follows: