Hebei Messi Biology Co., Ltd. said that high purity magnesium oxide generally refers to magnesium oxide products with purity greater than 99%. Because high purity magnesium oxide has excellent physical properties such as super high melting point, good magnetic conductivity and excellent insulating properties, and specific chemical properties, it is widely used in many fields such as ceramics, metallurgy,
medicine, electronics and national defense.
The development and industrialization of high purity magnesium oxide will greatly contribute to the development of electronics, national defense, aerospace and advanced ceramics industries. China ordinary grade magnesium oxide products production is large, a large number of exports, the market is weak; and high-purity magnesium oxide, active magnesium oxide, silicon steel magnesium oxide and some other fine magnesium oxide market demand is large, the product is imported in large quantities.
1 Ordinary magnesium oxide preparation method
The raw material sources for producing magnesium oxide are mainly liquid ore and solid ore. The former is mainly based on seawater, underground brine, salt lake brine; solid ore is mainly magnesite, hydromagnesite, dolomite, serpentine and asbestos tailings, etc. By the brine or water magnesite preparation of magnesium oxide method mainly has lime milk method, ammonium carbon method, ammonia method, soda ash method, water magnesite direct pyrolysis method; by solid ore preparation of magnesium oxide method mainly has calcined magnesite method, carbonization method, acid solution method, ammonium sulfate method and ammonium sulfate compound salt method.
2 high purity magnesium oxide preparation method
The production of high-purity magnesium oxide is...
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