Abstract: Magnesium fluoride is an important inorganic chemical material,which is used in many fields with a wide market.Many magnesium fluoride preparation methods including magnesium carbonate method,magnesium sulfate(or magnesium nitrate) method,magnesium oxide method,and magnesium chloride method,in China at present were introduced,and advantages and disadvantages thereof were also briefly analyzed.Mostly different enterprises adopted different production processes to fit with their own advantages,such as fluorite resource advantage.In China,limited fluorite resources is unevenly distributed,and the content of rich ore is low.In view of those situations,it was proposed to develop and utilize the fluoride resources associated with phosphate rocks,so as to expand the sources of fluoride and enhance the market competitiveness of magnesium fluoride.

Key words: magnesium fluoride, preparation methods, fluorite