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Sintered Magnesia-Alumina Spinel

With high-grade bauxite or high-quality industrial alumina, sintered magnesia-alumina spinel is made by fine milling, high-pressure briquetting and high-temperature (up to 1800°C) sintering in rotary kiln. It exhibits high degree of hardness, high melting point and low thermal expansion. Therefore it is an ideal raw material for production of sintered magnesia-alumina spinel brick and spinel castable used for cement kiln, steel refining furnace, glass kiln etc.

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