Chromite Production Process
With the ability to smelt chromite ore with iron and carbon-rich materials, came the discovery of ferro-chrome, which brought about advances in alloy steel production. Added to steel, for example, chromium endows hardness and wear-resistance, allowing the production of tool, alloy and stainless steel.
About 80~90% of ferro-chrome output is consumed by stainless steel production. Chromium has applied in the chemicals and foundry industries, but over 90% is used in metallurgy. Owing to its resistance to corrosion, caustic conditions and high temperatures, chromium is also in demand from the super alloys industry.
Obviously, it is vital for us to learn the chromite production process.
Chromite production process
Chromite ore extracted from the mine with a grade of 40% chromium oxide ore greater is suitable for processing directly in the off-site ferrochrome production facility. Ore with a lower grade must be processed to increase its chromite content.
Ore that is not suitable to ship directly to the ferrochrome production facility will be processed at the mine site to produce concentrate. The processing of chromite ore separates and concentrates the valuable chromite mineral. This involves mechanical processes and separation using gravity.
During the chromite production process, the first step is to extract the raw materials from the mine. The extracted materials will be taken into the jaw crusher for the primary crushing stage. The block materials will be crushed into coarse size. If necessary, these coarse materials will enter into the cone crusher or impact crusher for the secondary crushing. Ball mill will grind the crushed materials.
Because there is impurities materials involved in them. Gravity separation is very necessary. Depending on the weight difference of the materials, the undesired materials will be separated. The high grade chromite can be used according to the demands.