Can be used to prepare hydrogen fluoride: CaF2+H2SO4 = CaSO4+ 2HF↑. The consumption of preparing hydrogen fluoride accounts for more than 50% of all fluorite consumption.
Fluorite is also widely used in glass, ceramics, cement and other building materials industries, and its consumption ranks second in China.
In the glass industry, adding fluorite as flux and opacifier can promote the melting of glass raw materials.
In cement production, fluorite is added as mineralizer. Fluorite can reduce the sintering temperature and fuel consumption of the burden, at the same time, it can also enhance the liquid viscosity of clinker during sintering and promote the formation of tricalcium silicate.
In the ceramic industry, fluorite is mainly used as porcelain glaze, which can play the role of color and melting in the production of porcelain glaze.
In iron and steel industry, fluorite is also an important flux to remove impurities from steel.
Fluorite can also be used for decoration.
South Africa, Mexico, Mongolia, Russia, the United States, Thailand, Spain and other places also produce fluorite. China is one of the countries with the largest number of fluorite minerals in the world, mainly produced in Chenzhou area in southeastern Hunan, and also produced in Zhejiang, Fujian and other places.
In order to protect fluorite resources, China stopped issuing new fluorite mining licenses as early as 2003.
I grew up in the steel industry when I was a child. The fluorite yard is next to the adults' office. Fluorite is the most beautiful auxiliary material for steel. I played as a child, and it's worthless. The current price (mine price) is only a few hundred dollars a ton.