Powder composition for tin oxide amorphous refractories, method for producing tin oxide amorphous refractories, glass melting furnace and waste melting furnace

摘要

Disclosed is a powder composition that can suppress the volatilization of SnO2 in a high-temperature field and that can provide a tin oxide amorphous refractory that also possesses high erosion resistance against glass. A powder composition for a tin oxide amorphous refractory containing a refractory composition containing SnO2 and ZrO2 as essential components, the total amount of SnO2 and ZrO2 in the refractory composition being 70% by mass or more, And the powder composition for tin oxide amorphous refractories whose content ratio of ZrO2 with respect to the total amount of SnO2 and ZrO2 is 1-30 mol%.