1.used as flux in meetallurgy ,it can reduce the melting point of difficult-melted substance,accelerate the flow of slags to separate the slag and metal thoroughly.It has the characteristic of desulfurization,dephophorization,increase metal’s forgeablity and tensile strength.Thus,it is widely used in steel making,nonferrous metal metallurgy,ferroalloy metallurgy,chemical and iron industry.

2.widely used in ferroalloy making,extra-fine steel metallurgy,nonferrous metal refinery and glass,ceramic and cement industry.

3.Essential raw material for making hydrofluoric acid and various organic or inorganic fluoride.