The fused magnesia is made from high-quality magnesia by melting. Its English name is fused magnesite. It is made of magnesite, brucite or magnesium hydroxide extracted from seawater by calcination at high temperature. Strong hydration resistance.
It is a general term for the products of magnesite and other magnesite raw materials that have been treated at high temperature to reach the degree of sintering. Magnesia calcined with natural magnesite as raw material by one or two step calcination process with high-temperature equipment such as shaft kiln and rotary kiln is called sintered magnesia; Magnesite and other raw materials are melted in the electric arc furnace to reach the melting state and cooled, which is called fused magnesite; The magnesia extracted from seawater is called seawater magnesia. Magnesia is one of the most important raw materials for refractories, and is used for manufacturing various magnesia bricks, magnesia-alumina bricks, ramming materials, furnace repair materials, etc. It contains many impurities and is used to pave the bottom of the steelmaking furnace.