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Dead burnt magnesite is a kind of chemical substances, is refers to the magnesite in 1800 ℃ calcination, carbon dioxide completely escape, magnesium oxide periclase formed dense block. This re-fired magnesium has a high fire resistance. Its main component is magnesium oxide, selected from natural super magnesite through flotation purification, light burning, fine grinding, high pressure ball, ultra-high temperature calcined oil shaft kiln.

Dead burnt magnesite is an important refractory material. Like fused magnesia, this product has high purity, large crystal size, compact structure, strong slag resistance and good thermal shock stability. It is an excellent high-temperature electrical insulation material and also an important raw material for making magnesia bricks, magnesia carbon bricks and unshaped refractory materials.