Refractory material consisting of .beta. alumina

Details Refractory material consisting of .beta. alumina Refractory material consisting of .beta. alumina

C - Chemistry, Metallurgy

04

B

C04B 35/113 (2006.01) C03B 5/43 (2006.01) C04B 35/107 (2006.01)

Patent

CA 2244677

The invention covers a fused cast refractory material essentially consisting of .beta. alumina and having the following chemical analysis expressed as molar percentages: - 11.2596 to 15.4586 of at least one alkaline metal oxide selected from the group comprising Na2O, Li2O and K2O provided that Na2O represents at least 9.3%, - 0 to 2.97% SiO2, - 81.38% to 88.75% Al2O3, and - at most 0.2% impurities and in which .beta. alumina represents at least 98% of the crystallised phases. Use for the construction of glassmaking furnaces.

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