Synthetic Cryolite is also called sodium hexafluoroaluminate. It is a kind of white fine crystals, no taste, and has a higher solubility than natural cryolite. Widely used as cosolvent in aluminum industry, wear-resistant filler for rubber and grinding wheels, glass sunscreen and enamel opalizer, etc.
According to the mass ratio of sodium fluoride and aluminum fluoride, cryolite can be divided into two kinds: High-molecular cryolite and common molecular cryolite. The molecular ratio from 2.2 to 2.6, It is used to adjust electrolyte level in aluminium electrolysing line; The molecular between 2.8 and 3.0, It can quickly start up aluminium electrolysing;
According to physical properties, cryolite can be divided into sandy cryolite, granular cryolite and powder cryolite.
Sandy cryolite is widely used in aluminum smelters, glass and aluminum alloy flux industry due to its good fluidity
Granular cryolite has good fluidity and high yield in aluminium smelters, which can effectively reduce the cost of electrolytic aluminum. The molecular ratio is between 2.5~3.0, which is very suitable for the opening of electrolytic aluminum.
Powder cryolite usually has 200 mesh, 325 mesh and 400 mesh, molecular ratio range between 2.0 and 3.0, mainly used in aluminium smelters, grinding filler, welding additives, brake pads and other industries.
