PROCESS FOR MANUFACTURE OF IMPROVED LADLE BRICK COMPOSITION ADAPTED TO FROM Mg AL204 SPINEL

摘要

A process for manufacture of improved ladle brick composition adapted to form MgAl2O4 spinel in-situ at high temperature comprising : Al2Oj 70-90% by wt. Si02 4-8% by wt. MgO 5-25% by wt. CaO 0.5-1.0% by wt. Fe2O3 1.5-2.0% by wt. and TiO2 2-3% by wt. the process comprising : providing Al2O3 aggregate in amount of 60-80% by wt., MgO bearing material in amount of 5-25% by wt., carbon bearing material in amount of 2-10% by wt., and binder in amount of 5-10% by wt. selectively mixing the above ingredients with said binder to thereby produce the ladle bricks adapted to form MgAl2O3 spinel-in-situ.