The calcination method and equipment of light burned magnesium oxide powder are also important factors affecting the activity

At the same temperature, the calcination method and equipment of lightly burned magnesium oxide powder are also important factors affecting its activity. For example, using a fluidized bed furnace or a suspension furnace to calcine powdered magnesite can quickly decompose and recover it, and obtain active lightly burned magnesium oxide; The use of tunnel kilns and reflection kilns to burn large blocks often results in surface overburning and internal combustion, which reduces the activity of lightly burned magnesium oxide. The use of rotary kilns to calcine magnesite is between the two, and can also maintain good activity of the obtained lightly burned magnesium oxide.