Sintered magnesia: It is made of special grade and first grade magnesite through light burning, fine grinding, ball pressing, and high-temperature shaft kiln sintering. Magnesia has low impurity content, high bulk density, and good slag resistance. It is used for manufacturing medium grade magnesia bricks or magnesia based amorphous refractory materials.
Electrically fused magnesia: It is made by melting selected special grade A natural magnesite or high-purity calcined magnesium particles in an electric arc furnace. This product has high purity, large crystalline particles, dense structure, strong slag resistance, and good thermal shock stability. Therefore, it is an excellent high-temperature electrical insulation material, and is also an important raw material for producing high-grade magnesium bricks, magnesium carbon bricks, and amorphous refractory materials.
High purity magnesia: selected from natural super grade magnesite ore for flotation purification, which is made by light burning, fine grinding, ball pressing, and ultra-high temperature oil shaft kiln calcination. It is a high-quality raw material for brick and refractory materials.
Heavy burned magnesia: It is made from natural magnesite ore and calcined in a high-temperature shaft kiln. Raw materials for brick making and production of unshaped refractory materials, and finished products are used for steelmaking, electric furnace bottom, and ramming furnace lining.
Medium grade magnesia: It is produced from lightly burned magnesium oxide with a MgO content of 97% by pressing balls and calcining in a high-temperature shaft kiln. The product has good sintering degree and dense crystallization. It is a high-quality raw material for producing medium grade magnesium refractory products.
