Alumina-magnesia product for gasifier or for metallurgical furnace
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United States of America Patent
Stats
-
Mar 14, 2017
Grant Date -
Dec 10, 2015
app pub date -
Dec 19, 2013
filing date -
Dec 19, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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 50%; 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.
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International Classification(s)
- 2013 Application Filing Year
- C25C Class
- 67 Applications Filed
- 52 Patents Issued To-Date
- 77.62 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C25C Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 14, 2028 |
