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US 8,618,007 B2Granted
Fused cast refractory product with a high alumina content
AssigneeSaint-Gobain Centre De Recherches Et D'Etudes Europeen
InventorsIsabelle Cabodi, Michel H G Gaubil
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Abstract
The invention provides a fused cast refractory product having the following mean chemical composition by weight, as a percentage by weight based on the oxides: 25%<MgO<30%; 70%<Al2O3<75%; other species: <1%. The invention is applicable to a regenerator associated with a soda-lime glass fusion furnace operating under reducing conditions.
Claims30
A fused cast refractory product obtained by a method comprising:
- fusing a starting charge to obtain a molten material;
- and
- casting and solidifying said molten material by cooling,
- wherein
- said fused cast refractory product has a chemical composition by weight, as percentages by weight based on the oxides:
- 25%<MgO<30%;
- 70%<Al2O3<75%;
- other species:
- <1%, and
- said fused cast refractory product having a total porosity of more than 10% and less than 30% and weighing more than 1 kg.
7 more elements
Dependencies are inferred from the claim text.