Chromite is a crystalline oxide mineral of the spinel group, composed primarily of iron(II) oxide and chromium(III) oxide and represented by the chemical formula FeCr2O4. Magnesium can substitute for iron to form a solid solution with magnesiochromite (MgCr2O4), while aluminium substitution can result in hercynite (FeAl2O4). Chromite is typically iron-black with a metallic luster, a dark-brown streak, and a Mohs hardness of 5.5.
Chromite is an important strategic mineral and is widely used in the production of ferrochrome (FeCr), an iron-chromium alloy essential to stainless steel manufacturing. Chromite ore consists of chromite minerals associated with gangue minerals, which are separated through beneficiation after mining. Chromite ore beneficiation exploits physical properties such as density, along with chemical, magnetic, and surface characteristics, to produce concentrates suitable for downstream applications.
| Particular | Value |
|---|---|
| Plant Capacity | 248 MT/Day |
| Land & Building (34,099 sq.mt.) | Rs. 39.08 Cr |
| Plant & Machinery | Rs. 9.60 Cr |
| Working Capital for 3 Months | Rs. 44.15 Cr |
| Total Capital Investment | Rs. 94.21 Cr |
| Rate of Return | 55% |
| Break Even Point | 27% |
Chromite ore is an ore containing chromite minerals associated with gangue minerals. Chromite is an oxide mineral belonging to the spinel group and is primarily composed of iron and chromium oxides. Its chemical formula is FeCr2O4. After mining, the ore can undergo beneficiation to separate chromite from associated gangue materials. The resulting concentrate can then be used in downstream applications, particularly in ferrochrome production.
Chromite ore beneficiation is the process of separating chromite minerals from gangue to produce a higher-quality concentrate. The process uses differences in material characteristics, including density, chemical properties, magnetic behavior, and surface characteristics. The selection and combination of beneficiation methods depend on the characteristics of the ore and the required concentrate quality. Beneficiation therefore improves the suitability of mined chromite ore for subsequent industrial processing.
Chromite is mainly used as a source of chromium for producing ferrochrome, an iron-chromium alloy used in stainless steel manufacturing. The chromium component contributes important properties to stainless steel, including corrosion resistance. Chromite ore is therefore an important raw material within the chromium and ferrochrome value chain. Beneficiation can be used to produce concentrates with characteristics suitable for downstream industrial applications.
Chromite is an iron-black mineral with a metallic luster, a dark-brown streak, and a Mohs hardness of 5.5. It belongs to the spinel group and is primarily represented by the chemical formula FeCr2O4. Its composition can vary because magnesium may substitute for iron, forming a solid solution with magnesiochromite, while aluminium substitution can lead to hercynite. These mineralogical characteristics are relevant when assessing chromite ore and selecting suitable beneficiation methods.
Chromite is considered a strategic mineral because it provides chromium, a key raw material for ferrochrome and stainless steel production. Chromium is important for achieving the properties required in stainless steel and other chromium-containing materials. The industrial importance of chromite therefore extends beyond the mined mineral itself to the wider ferrochrome and steel supply chain. Efficient beneficiation can help separate valuable chromite from gangue and produce concentrates for downstream use.
The reported plant capacity is 248 MT/Day. This figure is stated directly in the project report under cost estimation and represents the project-specific capacity provided in the source material. It should not be interpreted as a general capacity for chromite beneficiation plants, since plant capacity varies according to ore characteristics, process design, equipment selection, and project requirements.
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