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CHROMITE
Iron chromium oxide (FeCr2O4), a naturally occurring mineral composed of chromium and iron oxide, is known commercially as “chromite.” It can be discovered inside the earth’s crust. It is termed chrome ore once it has been mined.
For the creation of ferrochrome, an alloying component used in the fabrication of stainless steel, chromite is essential. Stainless steel’s corrosive-resistant qualities are provided by chromium, which makes it a perfect product for usage in a range of sectors.
Chromium compounds are well recognized for their usage as catalysts in the production of polyolefins, as crosslinking catalysts in adsorption capability, and as an epoxy hardener. Hard metal chromite is distinguished by a silvery, shiny, “polished” image. Its crystal lattice is strong and it has a high melting point. Its name, “chroma,” refers to the vivid colour it produces when mixed with other components, and it is used to generate dyes for the fabric and metallurgical industries
Coal
Coal is a flammable rock made of lithified plant remnants. It is made up of water, minerals, and macerals. It is created by the modification of dead plant debris that originally gathers as a peaty surface deposition before being buried underneath deeper sedimentary layers. The primary peat may well be successively changed by the coalification mechanism as the temperature increases owing to increasing depths of burial, passing through brown coals such as lignite and sub-bituminous coal to black coals or hard coals such as bituminous coal, semi-anthracite, and anthracite.
Magnetite
One of the primary iron ores is the mineral magnetite. It’s one of the oxidized iron and therefore is ferrimagnetic; it is drawn to a magnet and may be made into a permanent magnet by applying magnetization to it. It is the most magnetic of all naturally found minerals on Earth, with the exception of exceedingly rare native iron deposits. Primitive people initially learned about magnetism by seeing how naturally magnetic particles of magnetite, known as lodestone, will draw tiny pieces of iron.
Magnetite is black or brownish-black and leaves a black streak with mohs hardness 5–6 Having a metallic luster, Magnetite is a small grain that occurs frequently in both igneous and metamorphic rocks.
Manganese
Manganese is a hard, brittle, silvery metal that is frequently present in minerals along with iron. In particularly, stainless steels use manganese, a transition metal with a wide variety of industrial composition applications. It improves strength, processability, and fatigue strength.
Due to its sulfur-fixing, deoxidizing, and alloying capabilities, manganese (Mn) is crucial for the manufacturing of iron and steel. The majority of manganese demand, currently in the range of 85% to 90% of the whole, is accounted for by steelmaking, including its ironmaking element. The majority of this important component for making steel is provided by manganese ferroalloys, which are composed of different grades of ferromanganese and successfully obtained. The primary applications of manganese are in equipment, transit, and building products. Additionally, magnesium plays a significant role in some commonly used aluminum and, in oxide form, dry cell batteries. Additional amounts of manganese are utilized as ore for non-metallurgical uses such brickwork coloration, animal feed, and plants fertilizer.
Rock Phosphate
Rock Phosphate is a naturally occurring mineral with marine sedimentary origins. Due to the limited solubility of rock phosphate and the low availability of phosphorus to crops, even though it may have a composition of 0-30-0, the grade is indicated as 0-3-0. Since a large number of rock phosphate quarries are no longer in operation, other phosphate mines supply the majority of the rock phosphate used in marketing. The phosphorus pentoxide concentration of phosphorite (or phosphate rock grade) ranges widely, from 4% to 20%. (P2O5).
