China has abundant magnesium resources, not only seawater, brine, well brine and other liquid resources, but also very rich natural mineral resources such as magnesite, dolomite, brucite, serpentine, etc. Electrical grade magnesia powder is used for public use. The magnesium oxide commodity offers a solid resource advantage.

China has a variety of raw material route consuming magnesium oxide enterprises. In the past ten years, the dolomite carbonization method has developed rapidly, and it has Chinese characteristics in terms of technology and equipment. The scientific and technological effects have appeared and applied in the production practice. It is in the leading position in the world by eliminating waste residue pollution, maintaining the environment and improving economic benefits.

The magnesite carbonization method has been successfully used, which greatly reduces the production cost of magnesium oxide. The traditional use of brine to make magnesium oxide is developing into high-purity, high-value-added, publicized, and functional products. Establish a 10,000-ton-level backbone enterprise and stride to the international market. The electrical grade magnesium oxide powder should not corrode the heating wire materials and pipes at normal temperature or high temperature.

The water absorption rate of magnesium oxide powder shall not be higher than the following rules:

(1) Ordinary type ≤1.5%

(2) Low temperature moisture-proof type ≤0.05%

(3) Medium temperature moisture-proof type ≤0.10%

(4) High temperature type ≤0.10% Since the MgO powder itself has inorganic substances, it will cause the magnesium powder to turn black.

MgO powder or block should not be exposed to sun and night dew, and should not be exposed to rain in the open air, so as to avoid acid rain and harmful gases immersing in the block and powder.