SPINEL-CONTAINING REFRACTORY MATERIAL WITH CARBON BINDER Russian patent published in 1999 - IPC

FIELD: refractory materials. SUBSTANCE: refractory material intended for steel-smelting and steel-tapping assembly lining contains, wt %: alumino-magnesia spinel obtained in "for pouring" smelting, 30-60; fired and/or melted periclase, 20-45; crystalline graphite, 7-20; passivated by organosilicon coating antioxidant - fine aluminum- magnesium alloy with summary aluminum and magnesium content at least 99%, 3-5; and binding agent, 5-7 (above 100%). Aluminum-to-magnesium molar ratio in their allow is 1:1. EFFECT: increased resistance of spinel-containing material to oxidation and corrosion by metallurgical slag. 2 cl, 2 tbl, 16 ex