Self-fluxing pellets for blast furnace and method for manufacturing the same
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United States of America Patent
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Jul 3, 2012
Grant Date -
Aug 19, 2010
app pub date -
Dec 15, 2008
filing date -
Dec 20, 2007
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Abstract
Provided are self-fluxing pellets for a blast furnace, characterized in that a CaO/SiO2 mass ratio C/S is 0.8 or more and a MgO/SiO2 mass ratio M/S is 0.4 or more; when an iron content (mass %) in the entire pellet is represented by % TFe, % TFe is 65% or less; and a temperature Ts (unit: ° C.) at which the pressure loss starts to increase sharply in a loaded high-temperature reduction test and which is calculated by the equation below is 1290° C. or higher:
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