One of the most important uses of magnesium oxide is to use magnesium oxide as a flame retardant, and as a traditional flame retardant material, light burning powder is usually made of halogen-containing polymers or halogen-containing flame retardants. Flame retardant compound. However, once a fire occurs, due to thermal decomposition and combustion, a large amount of smoke and toxic corrosive gases will be generated, which will hinder fire fighting and evacuation of personnel, and corrode instruments and equipment.

In particular, it has been found that more than 80% of the fatal accidents in fires are caused by the thick smoke and toxic gases produced by the material. Therefore, in addition to the flame retardant efficiency, low smoke and low toxicity are also essential indicators of flame retardants. The development of China's flame retardant industry is extremely unbalanced, and chlorine-based flame retardants account for a relatively large proportion, ranking first among all flame retardants. However, when chlorine-based flame retardants act, they release toxic gases, which is far from the non-toxic and efficient pursuit of modern life. Therefore, in order to comply with the development trend of low smoke, low toxicity and pollution-free flame retardants in the world, the development, production and application of magnesium oxide flame retardants are imperative.

It is the determination of sulfur in coal and pyrite and sulfur and arsenic in steel. Used as a standard for white pigments. Light magnesia is mainly used as a raw material for the preparation of ceramics, enamels, refractory crucibles and refractory bricks. Also used as a polisher binder, a filler for coatings, and paper, an accelerator and activator for neoprene and fluororubber. After mixing with solutions such as magnesium chloride, it can be made into magnesium oxide water. In medicine, it is used as an antacid and laxative, for hyperacidity, gastric and duodenal ulcer disease. In the chemical industry, it is used as a catalyst and a raw material for the manufacture of magnesium salts. It is also used in the manufacture of glass, dyed meal, phenolic plastics, etc. Heavy magnesia is used in the rice milling industry for firing mills and semi-drums. The construction industry is used to make artificial chemical floors, artificial marble, heat protection panels, sound insulation panels, and plastic industry as fillers. It can also be used to produce other magnesium salts.

Strong refraction in the visible and near-ultraviolet range. Magnesite (MgCO3), dolomite (MgCO3·CaCO3) and seawater are the main raw materials for the production of magnesia. Magnesium oxide is obtained by thermal decomposition of magnesite or dolomite. The seawater is treated with slaked lime to obtain magnesium hydroxide precipitation, and magnesium hydroxide is burned to obtain magnesium oxide.

This can still be used to take out the most basic raw materials by using seawater, and can also generate a certain amount of magnesium oxide, or generate basic magnesium carbonate precipitation, and then burn to obtain magnesium oxide.

Light burning powder recommended