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Alumina-magnesia product for gasifier or for metallurgical furnace
The invention relates to a melted and cast refractory product having a chemical composition such that, in mass percentages on the basis of the oxides: AI2O3 : complement up to 100%; MgO : 26% to 45%; ZrO2 : 0.5% to 10.0%; B2O3 : < 1.5%; SiO2 : <= 0.5%; Na2O + K2O: <= 0.3%; CaO : <=1.0%; Fe2O3 + TiO2 : < 0.55%; other oxide species : < 1,0%. In said product, the elementary mass ratio R of the zirconium content to the total boron, fluorine and silicon content is between 2 and 80.
Alumina-magnesia product for gasifier or for metallurgical furnace
The invention relates to a melted and cast refractory product having a chemical composition such that, in mass percentages on the basis of the oxides: AI2O3 : complement up to 100%; MgO : 26% to 45%; ZrO2 : 0.5% to 10.0%; B2O3 : < 1.5%; SiO2 : <= 0.5%; Na2O + K2O: <= 0.3%; CaO : <=1.0%; Fe2O3 + TiO2 : < 0.55%; other oxide species : < 1,0%. In said product, the elementary mass ratio R of the zirconium content to the total boron, fluorine and silicon content is between 2 and 80.
Alumina-magnesia product for gasifier or for metallurgical furnace
JORGE ERIC (author) / FRANCY OLIVIER (author)
2015-12-09
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Alumina-magnesia product for gasifier or for metallurgical furnace
| European Patent Office | 2017
ALUMINA-MAGNESIA PRODUCT FOR GASIFIER OR FOR METALLURIGICAL FURNACE
| European Patent Office | 2015