Refractory spinel granules suitable for elastinating heavy clay refractory products, process for its production, refractory product with the spinel granules, use of the refractory product, lining of an industrial furnace with the refractory product

摘要

Granular refractory mineral Elastifizierergranulat for refractory products, especially for basic refractory products, mineral each consisting of a monophasic melt spinel mixed crystal or multi-phase melt product of the ternary system MgO-Fe ₂ O ₃ -Al ₂ O ₃ from the composition range MgO: 12 to 19.5, especially 15 to 17 wt .-% Remainder: Fe ₂ O ₃ and Al ₂ O ₃ in the quantitative ratio range Fe ₂ O ₃ to Al ₂ O ₃ between 80 to 20 and 40 to 60 wt. wherein, starting from an MgO content of between 12 and 19.5% by weight, the respective mixed crystals each contain an Fe ₂ O ₃ and Al ₂ O ₃ content in solid solution from the respectively specified limited ranges in such a way that a Total composition to 100% results.