TITANIUM OXIDE-CONTAINING ALUMINIUM OXIDE PARTICLES BASED ON CORUNDUM MELTED IN AN ELECTRIC ARC FURNACE FROM CALCINED ALUMINA, AND A METHOD FOR THE PRODUCTION THEREOF

摘要

The present invention relates to titanium oxide-containing aluminium oxide particles based on corundum melted in an electric arc furnace from calcined alumina. The particles have an aluminium oxide content of > 97.0 % by weight, a titanium oxide content of between 1.3 and 1.8 % by weight and a zirconium oxide content of between 0.02 and 0.1 % by weight. The aluminium oxide particles have an arithmetic mean compactness of < 0.8.