MAGNESIA-SILICA REFRACTORY Russian patent published in 2001 - IPC

FIELD: manufacture of refractories; applicable in manufacture of magnesia-silica refractories for lining of heat units, particularly, for intermediate repairs of burning zone of rotary cement kilns. SUBSTANCE: magnesia-silica refractory contains, wt.%: forsterite, 49-57; magnesiochromoaluminoferrous spinelide of Mg(Cr,Al,Fe)₂O₄ composition, 21-26; periclase, 20-25. Magnesia-silica refractory of specified phase composition is characterized by sufficient resistance to clinker in its use for intermediate repairs of lining of burning zone of rotating cement kilns with ensured relative equistability of remaining lining with repaired section. EFFECT: higher efficiency. 2 tbl