CA2371652A1 - Procede de decarburation et de dephosphoration d'un metal en fusion - Google Patents

Procede de decarburation et de dephosphoration d'un metal en fusion Download PDF

Info

Publication number
CA2371652A1
CA2371652A1 CA002371652A CA2371652A CA2371652A1 CA 2371652 A1 CA2371652 A1 CA 2371652A1 CA 002371652 A CA002371652 A CA 002371652A CA 2371652 A CA2371652 A CA 2371652A CA 2371652 A1 CA2371652 A1 CA 2371652A1
Authority
CA
Canada
Prior art keywords
channel
lance
oxygen
decarburisation
dephosphorisation
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.)
Abandoned
Application number
CA002371652A
Other languages
English (en)
Inventor
Frank Haers
Niek Van Poucke
Leo Peeters
Danny Dobbelaere
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.)
Sidmar SA
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2371652A1 publication Critical patent/CA2371652A1/fr
Abandoned 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
    • C21C5/42—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

La présente invention concerne un procédé de décarburation/déphosphoration combiné d'un métal en fusion, notamment pour la production d'aciers en fusion ULC et/ou SULC, le procédé de déphosphoration consistant à projeter des flux contenant de la chaux dans le bain d'acier lors de la réaction de décarburation dans le dispositif de dégazage. La présente invention concerne également une lance multifonctionnelle pouvant s'utiliser pour projeter de l'oxygène de décarburation, ainsi qu'une poudre consistant en un flux à base de chaux destinée à la déphosphoration. On peut projeter de l'oxygène supplémentaire ou des oxydes solides pour continuer le procédé de déphosphoration.
CA002371652A 1999-05-07 2000-05-05 Procede de decarburation et de dephosphoration d'un metal en fusion Abandoned CA2371652A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99870098.3 1999-05-07
EP99870098 1999-05-07
PCT/BE2000/000050 WO2000068442A1 (fr) 1999-05-07 2000-05-05 Procede de decarburation et de dephosphoration d'un metal en fusion

Publications (1)

Publication Number Publication Date
CA2371652A1 true CA2371652A1 (fr) 2000-11-16

Family

ID=8243835

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002371652A Abandoned CA2371652A1 (fr) 1999-05-07 2000-05-05 Procede de decarburation et de dephosphoration d'un metal en fusion

Country Status (14)

Country Link
EP (1) EP1190104B1 (fr)
JP (1) JP2002544376A (fr)
KR (1) KR20020005741A (fr)
CN (1) CN1350594A (fr)
AT (1) ATE233828T1 (fr)
AU (1) AU4528900A (fr)
BR (1) BR0011233B1 (fr)
CA (1) CA2371652A1 (fr)
DE (1) DE60001576T2 (fr)
ES (1) ES2193954T3 (fr)
PL (1) PL353443A1 (fr)
TR (2) TR200201466T2 (fr)
WO (1) WO2000068442A1 (fr)
ZA (1) ZA200108634B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351399C (zh) * 2001-02-07 2007-11-28 新日本制铁株式会社 生铁熔体脱磷的方法
DE102010007119B3 (de) * 2010-02-05 2011-07-28 Technometal GmbH, 47058 Vakuumumlaufentgasungsanlage mit Zündbrenner
CN103966400A (zh) * 2014-04-21 2014-08-06 鞍钢股份有限公司 一种利用rh精炼炉脱磷的方法
JP6782683B2 (ja) * 2017-11-06 2020-11-11 中外炉工業株式会社 減圧精錬槽
JP7052585B2 (ja) * 2018-06-18 2022-04-12 日本製鉄株式会社 溶鋼の脱燐処理方法

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
DE69617897T2 (de) * 1995-08-28 2002-08-29 Nippon Steel Corp., Tokio/Tokyo Verfahren und vorrichtung zum vakuumfeinen von stahl

Also Published As

Publication number Publication date
ES2193954T3 (es) 2003-11-16
ATE233828T1 (de) 2003-03-15
DE60001576T2 (de) 2004-08-26
KR20020005741A (ko) 2002-01-17
DE60001576D1 (de) 2003-04-10
BR0011233B1 (pt) 2009-01-13
AU4528900A (en) 2000-11-21
EP1190104B1 (fr) 2003-03-05
TR200103025T2 (tr) 2002-03-21
PL353443A1 (en) 2003-11-17
ZA200108634B (en) 2003-01-20
TR200201466T2 (tr) 2002-07-22
JP2002544376A (ja) 2002-12-24
WO2000068442A1 (fr) 2000-11-16
EP1190104A1 (fr) 2002-03-27
CN1350594A (zh) 2002-05-22
BR0011233A (pt) 2002-03-19

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Legal Events

Date Code Title Description
FZDE Discontinued