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 from an early stage and that can provide a tin oxide amorphous refractory that also has high erosion resistance against slag. A powder composition for tin oxide amorphous refractories containing SnO2, ZrO2 and SiO2 as essential components as a refractory compound, wherein the total content of SnO2, ZrO2 and SiO2 in the refractory compound is 70 The content ratio of SnO2, the content ratio of SnO2, 55 to 98 mol%, the content ratio of ZrO2 is 1 to 30 mol%, and the content ratio of SiO2 with respect to the total content of SnO2, ZrO2 and SiO2 A powder composition for tin oxide amorphous refractories, which is 1 to 15 mol%.