Domestic Requirement for Fluorspar

1. Chemical industryFluorine chemical industry is known as the "gold industry", fluorine chemical products are one of the basic materials necessary for high-tech industry, hydrofluoric acid is the starting point of fluorine chemical industry chain, and fluorite is the most economical and most critical mineral raw materials for producing hydrofluoric acid. At present, more than half of the world's fluorite production is used to produce hydrofluoric acid (the chemical industry requires high-grade fluorite, generally above the acid grade).In the inorganic fluorine chemical industry chain, with hydrofluoric acid as the starting point, aluminum fluoride and cryolite can be synthesized, as well as sodium fluoride and magnesium fluoride. Production of jet liquid propellants and missile jet fuel propellants for the aerospace industry; Purification of nuclear fuel with hydrofluoric acid for nuclear energy industry; It has been widely used in petrochemical industry, semiconductor manufacturing, insecticides, preservatives, protective agents, additives, fluxes and antioxidants. In 2012, the consumption of inorganic fluorine chemical fluorite powder was nearly 950,000 tonsIn the organic fluorine chemical industry, hydrofluoric acid is mainly used for the production of fluoroalkanes. Fluoroalkanes (such as HFC-134a) can be used in industrial and civil refrigeration systems and are also the main feedstock for fluoropolymers.

2. Metallurgical industryBecause fluorite can reduce the melting point of refractory minerals, early fluorite as a flux used in steel and non-ferrous metal smelting. Usually, 6-9kg of fluorite is required per ton of iron, and 2-9kg of fluorite is required per ton of steel. Smelting fluorite ore generally requires a calcium fluoride content of more than 65%In metallurgy, fluorite will erode the furnace lining, reduce the service life of the furnace, and cause environmental fluorine pollution in the production process; Fluorite resources are less and less, and the price is higher and higher. Therefore, the metallurgical industry is using dolomite and lime as fluxes to replace some fluorite.

3. Building materials industry and other industriesIn the building materials industry, fluorite is used as an additive in the production process of glass, ceramics, cement and so on. Now it is also widely replaced or partially replaced with sodium fluorosilicate and fluorogypsum. Fluorite is photohomogeneous, has a very low refractive index and good infrared and ultraviolet transmittance, so it can be made into optical objectives without spherical aberrations, spectrometer prisms and window materials that radiate ultraviolet and infrared rays. Fluorite can also be used as a bonding material for grinding wheels; Brightly colored fluorite can be used as art crafts.