辽宁What is the difference between medium grade magnesia and heavy burned magnesia

The main raw material selected for medium grade magnesia is 92% magnesium oxide, which is pressed into balls by a ball press. The shape of the ball formed by pressing electrofused magnesia is 30 mm, and the 30 mm magnesium oxide ball is calcined in a high-temperature oil shaft kiln or coke shaft kiln. Which one is better, Pisha

The calcined product is known as medium grade magnesia, which is mainly used to produce high-grade alkaline shaped or amorphous refractory materials, and its finished products are mainly used in metallurgy, building materials, nonferrous metals, chemical industries, and other industries. In addition, medium grade magnesia is used in metallurgy to manufacture metallurgical powder for bonding furnace bottom and wall, manufacturing slurry spray lining, and manufacturing magnesium bricks and magnesium chromium bricks; In addition to being used as a lining for the furnace bottom, it is also widely used in electric steelmaking furnaces, heating furnaces, nonferrous metal converting furnaces, and rotary furnaces.