GB1533803A - Process for refining molten iron by the injection of oxygen - Google Patents

Process for refining molten iron by the injection of oxygen

Info

Publication number
GB1533803A
GB1533803A GB3623877A GB3623877A GB1533803A GB 1533803 A GB1533803 A GB 1533803A GB 3623877 A GB3623877 A GB 3623877A GB 3623877 A GB3623877 A GB 3623877A GB 1533803 A GB1533803 A GB 1533803A
Authority
GB
United Kingdom
Prior art keywords
oxygen
injection
molten iron
refining molten
aug
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3623877A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 by Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Publication of GB1533803A publication Critical patent/GB1533803A/en
Expired legal-status Critical Current

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
    • C21C2250/00—Specific additives; Means for adding material different from burners or lances
    • C21C2250/04—Liquid gas
    • C21C2250/042—Liquid oxygen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

1533803 Converter steelmaking INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 30 Aug 1977 [30 Aug 1976] 36238/77 Heading C7D Iron is refined in a bottom blown converter by injecting a strongly oxidizing gas e.g. pure oxygen, through the central passage of a double-channel tuyere, and injecting liquid oxygen through the annular outer channel. The amount of liquid oxygen may be 0À2-0À5 kg/Nm<SP>3</SP> of oxygen gas, and its temperature 80-140‹K at 1 to 40 atmospheres.
GB3623877A 1976-08-30 1977-08-30 Process for refining molten iron by the injection of oxygen Expired GB1533803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626439A FR2362932A1 (en) 1976-08-30 1976-08-30 PROCESS FOR REFINING CAST IRON BY BLOWING OXYGEN

Publications (1)

Publication Number Publication Date
GB1533803A true GB1533803A (en) 1978-11-29

Family

ID=9177322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3623877A Expired GB1533803A (en) 1976-08-30 1977-08-30 Process for refining molten iron by the injection of oxygen

Country Status (9)

Country Link
JP (1) JPS5329215A (en)
BE (1) BE858121A (en)
CA (1) CA1112879A (en)
DE (1) DE2738273A1 (en)
ES (1) ES461969A1 (en)
FR (1) FR2362932A1 (en)
GB (1) GB1533803A (en)
IT (1) IT1084762B (en)
SE (1) SE440231B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152413A (en) * 1981-03-13 1982-09-20 Nippon Kokan Kk <Nkk> Gas blowing method in vessel for molten metal
DE4315342C1 (en) * 1993-05-08 1994-02-24 Messer Griesheim Gmbh Treating molten metal, in partic. steel with a purifying agent - with liquid oxygen or a two=phase mixt. of liq and gaseous oxygen used as the purifying agent

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242169U (en) * 1975-09-13 1977-03-25
JPS5322745U (en) * 1976-08-03 1978-02-25

Also Published As

Publication number Publication date
FR2362932A1 (en) 1978-03-24
CA1112879A (en) 1981-11-24
DE2738273A1 (en) 1978-03-02
IT1084762B (en) 1985-05-28
ES461969A1 (en) 1978-06-01
SE440231B (en) 1985-07-22
JPS5329215A (en) 1978-03-18
FR2362932B1 (en) 1979-01-12
BE858121A (en) 1978-02-27
SE7709581L (en) 1978-03-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee