Magnesia is a general term for Magnesia raw materials after high temperature treatment.
1.1: Light burning magnesia; magnesia, magnesia and magnesium hydroxide extracted from seawater or brine are calcined by about 800-1000℃, make it decompose and discharge CO2 or H2O, namely light magnesium powder, also known as light magnesium oxide, light magnesium powder, commonly known as bitter soil powder. Its quality is stable, high purity, good activity, widely used in refractory materials, chemical industry, building materials, paper making, animal husbandry and other industries.
1.2: Sintered magnesia; primary calcination or secondary calcination process with high temperature equipment such as vertical kiln, rotary kiln, with natural magnesia without raw materials is called sintering magnesia, according to its different production process, can be divided into reburned magnesia, middle grade magnesia, and high purity magnesia.
1.2.1 Reast magnesia; natural magnesia is calcined by high temperature vertical kiln. It is the ideal raw material for the production of uncertain refractory materials, products used for steel-making flat furnace, electric furnace furnace bottom, and tamping furnace lining.
1.2.2 Middle grade magnesia; medium grade magnesium powder with 95-97% as raw material, oil burning vertical kiln calcined, high sintering degree, high density, is a high quality raw material for producing medium grade magnesium refractory products, coke and oil burning products, medium grade sand with MGO> 97% light burning powder, B,D≥3.2g/cm3, oil burning medium grade with MGO content of 95-96% as raw material, B.D≥3.25g/cm3 they are high quality raw materials for magnesium products.
1.2.3 High purity magnesia; choose natural stunt magnesia flotation purification by light burning, fine grinding, pressure ball, super high temperature oil vertical kiln burning, MGO:96.5-98%,B.D≥3.30g/cm3, Ca / Si> 2.
1.3 Fused magnesia: Due to its large and dense crystallization, as the main raw material of steel-making converter, electric furnace and refined steel coated slag line magnesium carbon brick, it is the best theme raw material at present, among which the subway macro-crystalline Fused magnesia is a good filling insulation material in electrical components.
1.4 Seawater magnesia, the magnesium ions, one of the elements contained in seawater, through the reaction with alkaline raw materials, are recovered as magnesium hydroxide, and then burned into the obtained magnesium oxide, called "seawater magnesia"