An important impurity compounds the high aluminum brick is iron, titanium compound. From the combined air reheating decisively brick white practice can surmise, firing air and iron, titanium compound is attack decisively conditions. However, iron, titanium compound coexist with single exist, have different effects on the brick body staining. Titanium photon single exist, dyeing is not outstanding, slightly blue brick, high alumina brick and iron photon single exists, the brick body orange and maroon. However, even in the combined air, also can increase the compound aluminum staining and sintering and attack decisively.