Magnesium oxide has high activity, light weight and looseness, and is widely used in flame retardants and medicine. It is one of the promising functional materials. Magnesium oxide is a product with a large amount of inorganic substances and a wide range of uses. According to its use, it is mainly divided into fused magnesia, industrial magnesia, heavy magnesia, special magnesia for friction materials, medical magnesia and metallurgical magnesia. Its magnesium oxide content greater than 99.0% is called high-purity magnesium oxide. So, what are the advantages and gaps of my country's magnesium oxide production?

 (1) Advantages

 1. my country has abundant magnesium resources, not only liquid resources such as seawater and brine, but also very rich natural mineral resources such as magnesite, dolomite, and brucite, which provide a solid resource advantage for the development of high-purity magnesium oxide in my country. .

 2. my country is rich in energy and low in price, and the production of high-purity magnesium oxide is guaranteed by energy.

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 3. my country has a variety of raw material routes to produce magnesium oxide enterprises, especially in the past ten years, the dolomite carbonization method has developed by leaps and bounds, and has formed its own characteristics in terms of technology and equipment. The magnesium-containing calcium carbonate was successfully prepared and used, which largely solved the pollution problem caused by the dolomite carbonization method. Moreover, in recent years, traditional brine-based magnesium salts are developing into high-purity, high-value-added, functionalized and functionalized products.

 4. Special magnesia products are developing rapidly, and various active magnesia, magnesia peroxide, special magnesia (electrofusion, silicon steel, electronics, high purity, etc.), special magnesia for conveyor belts, etc. have been put on the market one after another.

 (2) Gap

 1. Production Due to the small scale, poor equipment, and failure to adopt new technologies and equipment, the quality of magnesium salt products in my country is unstable, and the material consumption and energy consumption are high.

 2. The production of magnesium salts in my country is still in the production stage of crude primary products, which is far from meeting the needs of national economic development. It is understood that my country is a major producer of magnesium salts. According to statistics from the United States, my country ranks first in the world in terms of magnesite resources. Among them, Dashiqiao magnesite reserves in Liaoning Province; seawater and salt lakes are also very rich in magnesium resources, and there is a development of magnesium salts. The superior condition of the product. However, compared with the advantages of abundant resources and high grade, the production of magnesium salts in my country is still in the production stage of crude primary products, which is far from meeting the needs of national economic development. Therefore, to open up new uses of magnesium salts, it is necessary to vigorously develop the production of fine products of magnesium salts, especially to develop special magnesium oxides for various purposes, such as fused magnesium oxide frit, high-purity fused magnesium oxide, and refractory materials. , production of magnesium oxide for ceramics and electric heating appliances, application and development of fibrous magnesium salts and high-purity magnesium salts

 3. In recent years, although the scientific research results of fine magnesium salt products have continued to emerge, such as active, electrofusion, silicon steel, high-purity magnesium oxide, etc., have been continuously put into the market, but the variety and quantity cannot meet the domestic market demand, let alone export. Due to the low production of fine varieties of magnesium salts, the economic benefits of magnesium salt enterprises are also seriously affected.