Half of the world's fluorspar production is used to produce hydrofluoric acid, and then to develop cryolite for the aluminum smelting industry. Fluorite is used as the coolant (freon) in the refrigerator. Another important use of fluorite is to produce hydrofluoric acid. Hydrofluoric acid is produced by the reaction of acid-grade fluorite (fluorite concentrate) with sulfuric acid in a heating furnace or tank. It is divided into anhydrous hydrofluoric acid and hydrofluoric acid. They are both colorless liquids. , Volatile, strong irritating smell and strong corrosiveness. In the aluminum industry, hydrofluoric acid is used to produce aluminum fluoride, artificial cryolite, sodium fluoride, and magnesium fluoride. In the aviation and aerospace industries, hydrofluoric acid is mainly used to produce jet liquid propellant and missile jet fuel propellants. Hydrofluoric acid is the basic raw material of organic fluorine chemicals. It interacts with chloroform and carbon tetrachloride to produce fluorinated chlorinated hydrocarbons and fluorocarbons with low toxicity and high chemical stability. It is used as a refrigerant and air Sol accelerator, solvent polymer intermediate, and fluorocarbon resin, and elastomer. Hydrofluoric acid reacts with carbon tetrachloride to produce freon (usually denoted by F). In addition to being a refrigerant, Freon is also widely used in sprays, fire extinguishing agents, fluoroplastics, etc. In medicine, fluorine organic compounds can also produce fluorine-containing anti-cancer drugs, fluorine-containing cortisone, fluorine-containing carbon artificial blood, artificial heart, and bone. In the inorganic fluorination industry, pesticides, preservatives, protective agents, additives, fluxes, and antioxidants can be produced. Fluorite is also widely used in glass, ceramics, cement, and other building materials industries, and its consumption ranks second in my country. In the glass industry, fluorite is added as a flux and sunscreen, which can promote the melting of glass raw materials. Fluorite is added as a mineralizer in cement production. Fluorite can lower the sintering temperature of the charge and reduce fuel consumption. At the same time, it can increase the liquid viscosity of the clinker during sintering and promote the formation of tricalcium silicate. In the ceramic industry, fluorite is mainly used as enamel, it can play a role in color and flux in the production process of enamel. For example, after adding fluorite to red enamel, the color can be bright and bright. The amount of fluorite added in ceramic production enamel is generally about 10% to 20%. Also involved in the manufacture of enamel products. Fluorite is also used in the enamel industry and cast stone production, and its addition amounts are 3%-10% and 3% respectively.