Magnesium oxide (chemical formula: MgO) is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in the form of periclase in nature and is a raw material for magnesium smelting.

Magnesium oxide has a high degree of refractory insulation properties. It can be converted into crystals by burning at a temperature above 1000 ° C. When it is raised to 1500 - 2000 ° C, it is formed into a burnt magnesia (also known as magnesia) or sintered magnesia.

Regarding the problems in the use of food grade magnesium oxide industry, the main points are as follows:

1: The structural contradiction of production output is outstanding. Although the profit of the magnesium oxide industry has decreased compared with the previous one, the lack of competitiveness of personnel is also a major cause of contradictions.

2: The problems of inflexible state-owned enterprise mechanisms are outstanding.

3: Production costs continue to rise.