TR200103025T2 - Removal of carbon and phosphorus of molten metals - Google Patents

Removal of carbon and phosphorus of molten metals

Info

Publication number
TR200103025T2
TR200103025T2 TR2001/03025T TR200103025T TR200103025T2 TR 200103025 T2 TR200103025 T2 TR 200103025T2 TR 2001/03025 T TR2001/03025 T TR 2001/03025T TR 200103025 T TR200103025 T TR 200103025T TR 200103025 T2 TR200103025 T2 TR 200103025T2
Authority
TR
Turkey
Prior art keywords
dephosphorisation
decarburisation
phosphorus
removal
carbon
Prior art date
Application number
TR2001/03025T
Other languages
Turkish (tr)
Inventor
Van Poucke Niek
Peeters Leo
Haers Frank
Dobbelaere Danny
Original Assignee
Sidmar N.V.
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 Sidmar N.V. filed Critical Sidmar N.V.
Publication of TR200103025T2 publication Critical patent/TR200103025T2/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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention is related to a method of combined decarburisation/dephosphorisation of a molten metal, in particular for the production of ULC and/or SULC molten steels, wherein said dephosphorisation is achieved by blowing lime containing fluxes onto the steel bath during the decarburisation reaction in the degassing device. The present invention is also related to a multifunctional lance, which can be used to supply oxygen for decarburisation, as well as the powder containing lime based flux for dephosphorisation. Extra oxygen gas or solid oxides can be supplied to maintain the dephosphorisation process.
TR2001/03025T 1999-05-07 2000-05-05 Removal of carbon and phosphorus of molten metals TR200103025T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99870098 1999-05-07

Publications (1)

Publication Number Publication Date
TR200103025T2 true TR200103025T2 (en) 2002-03-21

Family

ID=8243835

Family Applications (2)

Application Number Title Priority Date Filing Date
TR2001/03025T TR200103025T2 (en) 1999-05-07 2000-05-05 Removal of carbon and phosphorus of molten metals
TR2002/01466T TR200201466T2 (en) 1999-05-07 2000-05-05 Multifunction nozzle.

Family Applications After (1)

Application Number Title Priority Date Filing Date
TR2002/01466T TR200201466T2 (en) 1999-05-07 2000-05-05 Multifunction nozzle.

Country Status (14)

Country Link
EP (1) EP1190104B1 (en)
JP (1) JP2002544376A (en)
KR (1) KR20020005741A (en)
CN (1) CN1350594A (en)
AT (1) ATE233828T1 (en)
AU (1) AU4528900A (en)
BR (1) BR0011233B1 (en)
CA (1) CA2371652A1 (en)
DE (1) DE60001576T2 (en)
ES (1) ES2193954T3 (en)
PL (1) PL353443A1 (en)
TR (2) TR200103025T2 (en)
WO (1) WO2000068442A1 (en)
ZA (1) ZA200108634B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351399C (en) * 2001-02-07 2007-11-28 新日本制铁株式会社 Method for pig iron melt dephosphorize
DE102010007119B3 (en) * 2010-02-05 2011-07-28 Technometal GmbH, 47058 Vakuumumlaufentgasungsanlage with pilot burner
CN103966400A (en) * 2014-04-21 2014-08-06 鞍钢股份有限公司 Method for dephosphorizing by using RH refining furnace
JP7052585B2 (en) * 2018-06-18 2022-04-12 日本製鉄株式会社 Dephosphorization method for molten steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107718A (en) * 1979-02-14 1980-08-19 Nippon Steel Corp Production of molten steel
US4426224A (en) * 1981-12-25 1984-01-17 Sumitomo Kinzoku Kogyo Kabushiki Gaisha Lance for powder top-blow refining and process for decarburizing and refining steel by using the lance
AU653294B2 (en) * 1992-08-26 1994-09-22 Nippon Steel Corporation Process for vacuum degassing molten steel
CN1066774C (en) * 1995-08-28 2001-06-06 新日本制铁株式会社 Process for vacuum refining of molten steel and apparatus therefor

Also Published As

Publication number Publication date
DE60001576D1 (en) 2003-04-10
ATE233828T1 (en) 2003-03-15
EP1190104B1 (en) 2003-03-05
ZA200108634B (en) 2003-01-20
ES2193954T3 (en) 2003-11-16
DE60001576T2 (en) 2004-08-26
CN1350594A (en) 2002-05-22
WO2000068442A1 (en) 2000-11-16
BR0011233A (en) 2002-03-19
TR200201466T2 (en) 2002-07-22
CA2371652A1 (en) 2000-11-16
KR20020005741A (en) 2002-01-17
EP1190104A1 (en) 2002-03-27
JP2002544376A (en) 2002-12-24
BR0011233B1 (en) 2009-01-13
PL353443A1 (en) 2003-11-17
AU4528900A (en) 2000-11-21

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