Use

Main raw material for hydrofluoric acid (HF) production

Explanation

Fluorite with a content of 40% is commercialized by increasing the content to 97% through the flotation method. It is the main raw material for hydrofluoric acid (HF) production and the main raw material for aluminum fluoride (AlF3).

Use

Used as an auxiliary raw material for steelmaking, desulfurization, dephosphorization, improvement of slag fluidity, etc.

Explanation

Fluorite is a basic raw material for the production of fluoride (cryolite, aluminum fluoride, sodium fluoride), used as a flux for steel production in the metallurgical industry, and a flux for special alloys and all types of furnaces that melt iron ore, such as flat furnaces, blast furnaces, and electric furnaces. is used as

Use

Dephosphorization, desulfurization and temperature control, etc.

Explanation

A rock whose main component is calcium carbonate (CaCO3). Limestone is a mineral formed by the deposition of bones of animals and plants. Limestone is the main raw material of cement and is widely used for steelmaking. For steelmaking, it is a raw material for the manufacture of quicklime, and the main use of quicklime in steelmaking is for dephosphorization and desulfurization FLUX.

Use

Blast furnace for steel, converter, reinforcement of fluidity and strength of slag, etc.

Explanation

Dolomite is a sedimentary carbonate rock composed of crystalline calcium magnesium carbonate CaMg(CO3)2, and its use and manufacturing method are similar to those of limestone. There are cases where raw stones are used as is, and there are cases where they are fired. Simple shredded products are used for steelmaking, glass, fertilizer, and aggregates, and fired products are used for steelmaking and refractories.

Use

Manganese ferroalloy, main raw material mineral for metal production

Explanation

As a mineral whose main component is manganese, it is used as a major raw material mineral for alloy iron (Fe-Mn, Mn-Metal, Si-Mn) and is also used for other purposes such as batteries.

Use

Chromium ferroalloy, main raw material mineral for metal production

Explanation

As a mineral whose main component is chromium, it is used as a major raw material mineral for alloy iron (Fe-Cr, Cr-Metal) and is also used for refractories.