Chromite Processing: Gravity, Magnetic, and Flotation Separation

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.

Gravity separation+magnetic separation+flotation process

After the raw ore is crushed and ground, a portion of the tailings are first discarded through gravity separation. Then, the coarse concentrate product is recovered through magnetic separation, and high-quality concentrate is obtained through flotation.

Process characteristics

High grade concentrate.

Typical beneficiation plant

The Tiffens Mineral Processing Plant in Oregon, USA, is the largest chromium ore in the United States and is a high-speed iron deposit; The main components of the ore are quartz, olivine, ilmenite, rutile, chromite, magnetite, etc. The specific process is as follows:

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