ATE538219T1 - Verfahren zur entphosphorisierung von geschmolzenem eisen - Google Patents

Verfahren zur entphosphorisierung von geschmolzenem eisen

Info

Publication number
ATE538219T1
ATE538219T1 AT02770227T AT02770227T ATE538219T1 AT E538219 T1 ATE538219 T1 AT E538219T1 AT 02770227 T AT02770227 T AT 02770227T AT 02770227 T AT02770227 T AT 02770227T AT E538219 T1 ATE538219 T1 AT E538219T1
Authority
AT
Austria
Prior art keywords
flux
hot metal
oxygen
blowing
dephosphorizing
Prior art date
Application number
AT02770227T
Other languages
English (en)
Inventor
Hiroshi Hirata
Hiromi Ishii
Hiroaki Hayashi
Yuji Ogawa
Naoto Sasaki
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of ATE538219T1 publication Critical patent/ATE538219T1/de

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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or 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
    • C21C7/064—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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or 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
    • C21C7/064—Dephosphorising; Desulfurising
    • C21C7/0645—Agents used for dephosphorising or 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
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • C21C5/32—Blowing from above
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
AT02770227T 2001-09-27 2002-09-27 Verfahren zur entphosphorisierung von geschmolzenem eisen ATE538219T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001295875A JP3940280B2 (ja) 2001-09-27 2001-09-27 溶銑の脱りん方法
PCT/JP2002/010105 WO2003029497A1 (fr) 2001-09-27 2002-09-27 Procede de dephosphorisation de fer en fusion

Publications (1)

Publication Number Publication Date
ATE538219T1 true ATE538219T1 (de) 2012-01-15

Family

ID=19117230

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02770227T ATE538219T1 (de) 2001-09-27 2002-09-27 Verfahren zur entphosphorisierung von geschmolzenem eisen

Country Status (5)

Country Link
EP (1) EP1445337B1 (de)
JP (1) JP3940280B2 (de)
KR (1) KR100658806B1 (de)
AT (1) ATE538219T1 (de)
WO (1) WO2003029497A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100909691B1 (ko) * 2002-12-18 2009-07-29 주식회사 포스코 진공탈가스설비에서 고순도 산화철을 이용한 용강탈린방법
JP5438527B2 (ja) * 2010-01-15 2014-03-12 株式会社神戸製鋼所 極低りん鋼溶製のための脱りん方法
JP5438543B2 (ja) * 2010-02-18 2014-03-12 株式会社神戸製鋼所 脱りん方法
JP6191437B2 (ja) * 2013-12-16 2017-09-06 新日鐵住金株式会社 溶銑の精錬方法
US11542566B2 (en) 2016-12-27 2023-01-03 Jfe Steel Corporation Method for dephosphorization of hot metal, and refining agent
WO2019172195A1 (ja) * 2018-03-07 2019-09-12 日本製鉄株式会社 溶銑の脱りん方法
CN109371200A (zh) * 2018-10-29 2019-02-22 甘肃酒钢集团宏兴钢铁股份有限公司 一种通过转炉底喷氧化铁红使铁水快速脱磷的冶炼方法
CN113337673B (zh) * 2021-04-21 2022-06-21 新疆八一钢铁股份有限公司 一种转炉炼钢高效脱磷剂的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043238B1 (de) * 1980-06-28 1984-10-10 Kawasaki Steel Corporation Verfahren zur Entphosphorisierung geschmolzenen Roheisens
JPS5816009A (ja) * 1981-07-22 1983-01-29 Nippon Steel Corp 溶湯の脱燐方法
JPH01215916A (ja) * 1988-02-24 1989-08-29 Nippon Steel Corp 溶銑の脱燐処理法
JPH0270014A (ja) * 1988-09-06 1990-03-08 Nippon Steel Corp 溶銑の脱燐処理法
JPH0611885B2 (ja) * 1988-09-28 1994-02-16 新日本製鐵株式会社 溶銑の同時脱珪・脱燐方法
JPH0673427A (ja) * 1992-08-26 1994-03-15 Nippon Steel Corp 復燐を抑制した高炭素溶鉄の精錬方法
AU680268B2 (en) * 1993-06-30 1997-07-24 IKEMIZU, Keiko Steel manufacturing method using converter

Also Published As

Publication number Publication date
JP2003105417A (ja) 2003-04-09
EP1445337B1 (de) 2011-12-21
EP1445337A4 (de) 2005-09-21
JP3940280B2 (ja) 2007-07-04
EP1445337A1 (de) 2004-08-11
KR100658806B1 (ko) 2006-12-19
KR20040033325A (ko) 2004-04-21
WO2003029497A1 (fr) 2003-04-10

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