Alumina-zirconia-silica refractory products

JP2025535786APending Publication Date: 2025-10-28SAINT GOBAIN CENT DE RES & DEVS & DETUD EUROEN
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Patent Information

Application Number
JP2025521246
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-10-14
Filing Date
2023-10-13
Publication Date
2025-10-28

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Abstract

The present invention relates to a fused and cast refractory product comprising, in mass percentages based on the oxides and based on a total of 100%, ZrO2 + HfO2: 39.0% to 55.0%, with the proviso that HfO2 < 5%, SiO2: 10.5% to 14.0%, Al2O3: balance up to 100%, Na2O + KO: 0.80% to 3.00%, BO3: < 1.0%, Fe2O3 + TiO2: < 0.60%, other species: < 1.0%, with the proviso that the ratio (KO / 1.52) / (Na2O+KO / 1.52) is 0.30, Na2O < 0.60%, or the ratio (KO / 1.52) / (Na2O+KO / 1.52) is greater than 0.60%.
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