METHOD OF MANUFACTURING GLASS CERAMIC TILE FROM SPENT CRUCIBLE LINING FOR SMELTING ALUMINIUM (VARIANTS), AND GLASS CERAMIC TILE Russian patent published in 1999 - IPC

FIELD: manufacture of glass ceramic tiles and composition for tiles. SUBSTANCE: spent crucible lining for smelting aluminium comprising carbon- containing material, fluorine and glass-forming materials is oxidized under conditions suitable for combustion of carbon-containing material and partial volatilization of fluorine in glass-forming materials. Oxidized glass forming materials are converted into glass-like state till glass melt is formed. This glass melt is then molded to form fluorine containing tiles. EFFECT: reduced power consumption and preparation of useful product. 24 cl, 6 dwg, 3 tbl