EP2434025A4 - Method of desulfurization of molten iron - Google Patents

Method of desulfurization of molten iron

Info

Publication number
EP2434025A4
EP2434025A4 EP10794262.5A EP10794262A EP2434025A4 EP 2434025 A4 EP2434025 A4 EP 2434025A4 EP 10794262 A EP10794262 A EP 10794262A EP 2434025 A4 EP2434025 A4 EP 2434025A4
Authority
EP
European Patent Office
Prior art keywords
desulfurization
molten iron
molten
iron
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
EP10794262.5A
Other languages
German (de)
French (fr)
Other versions
EP2434025A1 (en
EP2434025B1 (en
Inventor
Naoki Kikuchi
Masaki Koizumi
Takashi Yamauchi
Takehito Matsuda
Yasuo Kishimoto
Maki Iwasa
Yoshie Nakai
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 EP2434025A1 publication Critical patent/EP2434025A1/en
Publication of EP2434025A4 publication Critical patent/EP2434025A4/en
Application granted granted Critical
Publication of EP2434025B1 publication Critical patent/EP2434025B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
EP10794262.5A 2009-06-30 2010-06-29 Method of desulfurization of molten iron Active EP2434025B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2009155148 2009-06-30
JP2009294022 2009-12-25
JP2010147015A JP5195833B2 (en) 2009-06-30 2010-06-29 Hot metal desulfurization method
PCT/JP2010/061366 WO2011002094A1 (en) 2009-06-30 2010-06-29 Method of desulfurization of molten iron

Publications (3)

Publication Number Publication Date
EP2434025A1 EP2434025A1 (en) 2012-03-28
EP2434025A4 true EP2434025A4 (en) 2016-12-14
EP2434025B1 EP2434025B1 (en) 2018-03-21

Family

ID=43411162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10794262.5A Active EP2434025B1 (en) 2009-06-30 2010-06-29 Method of desulfurization of molten iron

Country Status (5)

Country Link
EP (1) EP2434025B1 (en)
JP (1) JP5195833B2 (en)
KR (1) KR101366720B1 (en)
CN (1) CN102471814B (en)
WO (1) WO2011002094A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5668641B2 (en) * 2011-08-22 2015-02-12 Ｊｆｅスチール株式会社 Hot metal desulfurization method
JP6237293B2 (en) * 2014-02-06 2017-11-29 新日鐵住金株式会社 Hot metal desulfurization treatment method
KR101597263B1 (en) 2014-04-04 2016-02-24 주식회사 포스코 Processing apparatus for molten metal and the method thereof
KR101602835B1 (en) 2014-05-26 2016-03-11 주식회사 포스코 Processing apparatus for molten metal and the method thereof
CN104928440B (en) * 2015-07-20 2017-05-10 上海信孚环保技术工程有限公司 Hot metal desulphurization device capable of saving desulfurizing agents and application thereof
JP6369516B2 (en) * 2015-10-05 2018-08-08 Ｊｆｅスチール株式会社 Mechanical stirring type hot metal desulfurization method
JP6402762B2 (en) * 2015-10-05 2018-10-10 Ｊｆｅスチール株式会社 Desulfurization agent, mechanical stirring type hot metal desulfurization method and method
EP3572534B1 (en) * 2017-01-19 2021-04-28 JFE Steel Corporation Desulfurization processing method of molten steel, and desulfurization agent
CN108486307A (en) * 2018-04-17 2018-09-04 中冶南方工程技术有限公司 A kind of converter dust-removing gray iron recovery system and method based on KR desulfurization station
KR102034264B1 (en) * 2018-08-03 2019-10-17 주식회사 포스코 Apparatus for processing hot metal and method for processing hot metal
JP6726437B1 (en) * 2020-05-29 2020-07-22 ダイヤモンドエンジニアリング株式会社 Mechanical stirring type desulfurization system
CN111979375B (en) * 2020-08-19 2022-04-29 武汉钢铁有限公司 Molten iron KR stirring mixing characteristic quantitative characterization method and intelligent desulfurization method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020112567A1 (en) * 1997-12-26 2002-08-22 Nkk Corporation Smelting reduction method
JP2005179690A (en) * 2003-12-16 2005-07-07 Jfe Steel Kk Method for desulfurizing molten pig iron
JP2008050659A (en) * 2006-08-25 2008-03-06 Jfe Steel Kk Desulfurizing agent for molten iron and method for desulfurization treatment
JP2009079261A (en) * 2007-09-26 2009-04-16 Jfe Steel Kk Method for desulfurizing molten pig iron

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938566A (en) * 1982-08-25 1984-03-02 松下電器産業株式会社 Refrigerator
JP2001288507A (en) * 2000-04-04 2001-10-19 Nkk Corp Method for producing low phosphorus molten iron
JP2006241502A (en) * 2005-03-02 2006-09-14 Nippon Steel Corp Desulfurizing agent for molten iron and method for desulfurizing molten iron
JP5101988B2 (en) * 2007-10-26 2012-12-19 新日鐵住金株式会社 Molten metal desulfurization agent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020112567A1 (en) * 1997-12-26 2002-08-22 Nkk Corporation Smelting reduction method
JP2005179690A (en) * 2003-12-16 2005-07-07 Jfe Steel Kk Method for desulfurizing molten pig iron
JP2008050659A (en) * 2006-08-25 2008-03-06 Jfe Steel Kk Desulfurizing agent for molten iron and method for desulfurization treatment
JP2009079261A (en) * 2007-09-26 2009-04-16 Jfe Steel Kk Method for desulfurizing molten pig iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011002094A1 *

Also Published As

Publication number Publication date
BRPI1015360A2 (en) 2016-05-10
CN102471814A (en) 2012-05-23
JP2011149087A (en) 2011-08-04
EP2434025A1 (en) 2012-03-28
EP2434025B1 (en) 2018-03-21
KR101366720B1 (en) 2014-02-24
WO2011002094A1 (en) 2011-01-06
JP5195833B2 (en) 2013-05-15
KR20120026623A (en) 2012-03-19
CN102471814B (en) 2016-06-15

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