Magnesite can be calcined and melted at different temperatures to produce light burnt magnesium, calcined magnesium powder and fused magnesia whose main component is magnesia.
Magnesite is calcined at a temperature of 750-1100 and is called "light burn". Its product is called light burned magnesium powder, which is referred to as light burnt powder. Light-burning powder is mainly used to make cementitious materials, insulating and sound-insulating building materials, and also as ceramic raw materials.
The re-burned powder is mainly made of light-burned powder as raw material, which is obtained by water selection, hydrolysis, solid-liquid separation, drying, calcination and pulverization. The production of heavy magnesia has high quality requirements for light burned magnesia powder. Generally use high-grade powder produced from high-quality magnesite, should not have moisture agglomeration