ALUMINIUM OXYCARBIDE BASED COMPOSITION AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2014 - IPC C04B35/657 C04B35/103 C04B35/56 

FIELD: chemistry.

SUBSTANCE: invention relates to production of a refractory material based on aluminium oxycarbide. The method involves preparing a mixture basically consisting of a carbon-containing starting material, having mean particle diameter of 0.5 mm or less, and aluminium oxide-containing starting material, having mean particle diameter of 350 mcm or less, wherein the molar ratio of the carbon-containing starting material to the oxide-containing starting material (C/Al₂O₃) is in the range of 0.8 to 2.0; homogenously mixing the mixture to ensure inconsistency of the content of component C in the range of ±10%, and melting the obtained mixture in an arc furnace at temperature of 1850°C or higher. The obtained material contains more than 95 wt % of the sum of C and Al₂O₃, of which Al₄O₄C makes up 45 wt % or more, another phase makes up less than 10 wt % and Al₂O₃ makes up the balance.

EFFECT: high output of Al₄O₄C with simultaneous reduction of content of Al₄C₃ and achieving high efficiency of the method.

9 cl, 1 tbl, 18 ex