METHOD FOR DEPHOSPHORIZING MOLTEN METAL USING LIME STONE

PURPOSE:To eliminate fluorite and soda ash added to promote the melting of lime in dephosphorizing treatment. CONSTITUTION:In the dephosphorizing method of molten iron for blowing oxygen gas by putting dephosphorizing agent on the molten iron, line stone is used as >=40% of the lime source for th...

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Bibliographische Detailangaben
Hauptverfasser: SATO MITSUNOBU, OKADA TAKESHI, FUJIWARA KIYOTO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE:To eliminate fluorite and soda ash added to promote the melting of lime in dephosphorizing treatment. CONSTITUTION:In the dephosphorizing method of molten iron for blowing oxygen gas by putting dephosphorizing agent on the molten iron, line stone is used as >=40% of the lime source for the dephosphorizing agent. By this method, without adding the fluorite and the soda ash, high dephosphorizing ratio can be achieved and the dephosphorizing cost is reduced.