Refractory product for a checker work element of a glass furnace regenerator
AssigneeSaint-Gobain Centre De Recherches Et D'Etudes Europeen
InventorsYves Boussant-Roux, Michel Gaubil, Olivier Citti
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Abstract
The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight composition, expressed in weight percent based on oxide content: 0.4%<MgO<2.5%; 0.2%<SIO2<2%; CaO<0.4%; impurities<0.5% AL2O3: complement.
Claims11
Fused-cast refractory product having the following average chemical composition by weight, the percentages by weight being on the basis of the oxides:
- 0.4%<MgO<2.0%;
- 0≦Na2O<0.6%
- 0.2%<SiO2<2.0%;
- 0≦F<0.6%
- CaO<0.4%;
- 0≦ZrO2<4%
- impurities:
- <0.5%;
- B2O3<0.05%
- Al2O3:
- balance.
Fused-cast refractory product having the following average chemical composition by weight, the percentages by weight being on the basis of the oxides:
- 0.4%<MgO<2.5%;
- 0≦Na2O<0.6%
- 0.2%<SiO2<2.0%;
- 0.1<F<0.6%
- CaO<0.4%;
- 0≦ZrO2<4%
- impurities:
- <0.5%;
- B2O3<0.05%
- Al2O3:
- balance.
Fused-cast refractory product having the following average chemical composition by weight, the percentages by weight being on the basis of the oxides:
- 0.4%<MgO<2.5%;
- 0≦Na2O<0.6%
- 0.2%<SiO2<2.0%;
- 0≦F<0.6%
- CaO<0.4%;
- 0≦ZrO2<0.1%
- impurities:
- <0.5%;
- B2O3<0.05%
- Al2O3:
- balance.
Dependencies are inferred from the claim text.