ES461969A1 - 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
ES461969A1
ES461969A1 ES461969A ES461969A ES461969A1 ES 461969 A1 ES461969 A1 ES 461969A1 ES 461969 A ES461969 A ES 461969A ES 461969 A ES461969 A ES 461969A ES 461969 A1 ES461969 A1 ES 461969A1
Authority
ES
Spain
Prior art keywords
oxygen
injection
molten iron
refining molten
refining
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
ES461969A
Other languages
Spanish (es)
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 ES461969A1 publication Critical patent/ES461969A1/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

A method for refining pig iron, characterized in that it involves blowing through the bottom of the converter and through the central duct of at least one double-feed nozzle, a highly oxidizing refining gas, which can be injected in a virtually pure state, and inject at the same time, through the peripheral circuit of the nozzle, virtually pure and liquid oxygen. (Machine-translation by Google Translate, not legally binding)
ES461969A 1976-08-30 1977-08-30 Process for refining molten iron by the injection of oxygen Expired ES461969A1 (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
ES461969A1 true ES461969A1 (en) 1978-06-01

Family

ID=9177322

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461969A Expired ES461969A1 (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
IT1084762B (en) 1985-05-28
FR2362932A1 (en) 1978-03-24
CA1112879A (en) 1981-11-24
SE440231B (en) 1985-07-22
DE2738273A1 (en) 1978-03-02
SE7709581L (en) 1978-03-01
GB1533803A (en) 1978-11-29
JPS5329215A (en) 1978-03-18
BE858121A (en) 1978-02-27
FR2362932B1 (en) 1979-01-12

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990601