Sintered spinel, sintered by high temperature rotary kiln, using industrial alumina powder or super grade bauxite mixed with high purity caustic magnesia as raw materials, features strong hardness, high melting point and small coefficient of thermal expansion, etc. Therefore it is ideal raw material for ladle castable, magnesia spinel bricks, which are widely applied to the large and medium size rotary kilns, glass kilns, open hearth, etc. 

》》Index parameters