Pelotas autofundentes para alto-forno e método para fabricação das mesmas

Provided are self-fluxing pellets for a blast furnace, characterized in that a CaO/SiO 2 weight ratio C/S is 0.8 or more and a MgO/SiO 2 weight ratio M/S is 0.4 or more; when the iron content (weight %) in the entire pellet is represented by %TFe, %TFe is 65% or less; and the temperature Ts (unit: °...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIYUKI MATSUI, EISAKU YASUDA, NOBUHIRO HASEGAWA, SHUJI KITAYAMA
Format:	Patent
Sprache:	por
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Provided are self-fluxing pellets for a blast furnace, characterized in that a CaO/SiO 2 weight ratio C/S is 0.8 or more and a MgO/SiO 2 weight ratio M/S is 0.4 or more; when the iron content (weight %) in the entire pellet is represented by %TFe, %TFe is 65% or less; and the 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: Equation : Ts = 110 × C / S + 100 × M / S + 25 × % TFe - 480