EP1533388A4 - Method of manufacturing low phosphorous hot metal - Google Patents

Method of manufacturing low phosphorous hot metal

Info

Publication number
EP1533388A4
EP1533388A4 EP02807713A EP02807713A EP1533388A4 EP 1533388 A4 EP1533388 A4 EP 1533388A4 EP 02807713 A EP02807713 A EP 02807713A EP 02807713 A EP02807713 A EP 02807713A EP 1533388 A4 EP1533388 A4 EP 1533388A4
Authority
EP
European Patent Office
Prior art keywords
hot metal
manufacturing low
low phosphorous
phosphorous
manufacturing
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.)
Granted
Application number
EP02807713A
Other languages
German (de)
French (fr)
Other versions
EP1533388A1 (en
EP1533388B1 (en
Inventor
Hidetoshi Matsuno
Takeshi Murai
Yoshiteru Kikuchi
Eiji Sakurai
Ryohei Takehama
Ryo Kawabata
Satoshi Kohira
Ichiro Kikuchi
Manabu Tano
Hiroshi Shimizu
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.)
JFE Steel Corp
Original Assignee
JFE 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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP1533388A1 publication Critical patent/EP1533388A1/en
Publication of EP1533388A4 publication Critical patent/EP1533388A4/en
Application granted granted Critical
Publication of EP1533388B1 publication Critical patent/EP1533388B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • C21C5/35—Blowing from above and 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
    • 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
    • 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
    • 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
    • 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
    • C21C5/36—Processes yielding slags of special composition
    • 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
    • C21C7/072—Treatment with gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
EP02807713.9A 2002-08-27 2002-08-27 Method of manufacturing low phosphorous hot metal Expired - Fee Related EP1533388B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/008604 WO2004020677A1 (en) 2000-12-21 2002-08-27 Method of manufacturing low phosphorous hot metal

Publications (3)

Publication Number Publication Date
EP1533388A1 EP1533388A1 (en) 2005-05-25
EP1533388A4 true EP1533388A4 (en) 2011-02-02
EP1533388B1 EP1533388B1 (en) 2013-08-14

Family

ID=33193190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02807713.9A Expired - Fee Related EP1533388B1 (en) 2002-08-27 2002-08-27 Method of manufacturing low phosphorous hot metal

Country Status (4)

Country Link
EP (1) EP1533388B1 (en)
KR (1) KR100681292B1 (en)
BR (1) BR0213573B1 (en)
WO (1) WO2004020677A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262387A (en) * 1989-10-10 1993-11-16 Basf Aktiengesellschaft Pyridine derivatives and their use for controlling undesirable plant growth
JP6291998B2 (en) * 2014-04-22 2018-03-14 新日鐵住金株式会社 How to remove hot metal
JP6984731B2 (en) * 2018-03-07 2021-12-22 日本製鉄株式会社 How to remove phosphorus from hot metal
CN112853043A (en) * 2020-12-30 2021-05-28 唐山燕山钢铁有限公司 Method for reducing smelting cost of Q460C-2 low alloy steel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819423A (en) * 1981-07-27 1983-02-04 Kawasaki Steel Corp Refining method in composite top and bottom blown converter
JPS58147506A (en) * 1982-02-27 1983-09-02 Kawasaki Steel Corp Preliminary treatment of molten iron
JPH08311523A (en) * 1995-05-12 1996-11-26 Sumitomo Metal Ind Ltd Method for dephosphorizing molten iron
JP2000129329A (en) * 1998-10-23 2000-05-09 Sumitomo Metal Ind Ltd Method for dephosphorizing molten iron

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3458890B2 (en) * 1998-03-19 2003-10-20 Ｊｆｅスチール株式会社 Hot metal refining method
JP3332010B2 (en) * 1998-06-18 2002-10-07 日本鋼管株式会社 Manufacturing method of low phosphorus hot metal
JP4649694B2 (en) 1999-12-21 2011-03-16 Ｊｆｅスチール株式会社 Hot metal refining method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819423A (en) * 1981-07-27 1983-02-04 Kawasaki Steel Corp Refining method in composite top and bottom blown converter
JPS58147506A (en) * 1982-02-27 1983-09-02 Kawasaki Steel Corp Preliminary treatment of molten iron
JPH08311523A (en) * 1995-05-12 1996-11-26 Sumitomo Metal Ind Ltd Method for dephosphorizing molten iron
JP2000129329A (en) * 1998-10-23 2000-05-09 Sumitomo Metal Ind Ltd Method for dephosphorizing molten iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004020677A1 *

Also Published As

Publication number Publication date
EP1533388A1 (en) 2005-05-25
BR0213573A (en) 2004-10-26
KR20040053371A (en) 2004-06-23
BR0213573B1 (en) 2013-11-12
WO2004020677A1 (en) 2004-03-11
EP1533388B1 (en) 2013-08-14
KR100681292B1 (en) 2007-02-09

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