BE816104A - Preformed slag for refining cast iron - esp. for bottom blowing using protective inert gas around the oxygen stream - Google Patents

Preformed slag for refining cast iron - esp. for bottom blowing using protective inert gas around the oxygen stream

Info

Publication number
BE816104A
BE816104A BE6044629A BE6044629A BE816104A BE 816104 A BE816104 A BE 816104A BE 6044629 A BE6044629 A BE 6044629A BE 6044629 A BE6044629 A BE 6044629A BE 816104 A BE816104 A BE 816104A
Authority
BE
Belgium
Prior art keywords
slag
esp
inert gas
cast iron
bottom blowing
Prior art date
Application number
BE6044629A
Other languages
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE816104A publication Critical patent/BE816104A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/36—Processes yielding slags of special composition

Abstract

Preformed slag for use in a bottom blown converter comprises >=70% CaO, >=1.5% SiO2, >=5% Al2O3, >=2.5% Fe2O3, >=2% MgO, the CaO content being pref. 80-85% and the MgO 7-10%. The slag may be used either with hematite ores or with ores contg. high P. In either case the slag may be introduced as fine powder, by blowing through the tuyeres with the oxygen or in bulk from the top of the furnace.
BE6044629A 1973-08-21 1974-06-07 Preformed slag for refining cast iron - esp. for bottom blowing using protective inert gas around the oxygen stream BE816104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU68276A LU68276A1 (en) 1973-08-21 1973-08-21

Publications (1)

Publication Number Publication Date
BE816104A true BE816104A (en) 1974-09-30

Family

ID=19727449

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6044629A BE816104A (en) 1973-08-21 1974-06-07 Preformed slag for refining cast iron - esp. for bottom blowing using protective inert gas around the oxygen stream

Country Status (2)

Country Link
BE (1) BE816104A (en)
LU (1) LU68276A1 (en)

Also Published As

Publication number Publication date
LU68276A1 (en) 1975-05-21

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