EP3327150A4 - Desulfurizing agent, method for desulfurizing molten iron and method for producing molten iron - Google Patents

Desulfurizing agent, method for desulfurizing molten iron and method for producing molten iron Download PDF

Info

Publication number
EP3327150A4
EP3327150A4 EP16830368.3A EP16830368A EP3327150A4 EP 3327150 A4 EP3327150 A4 EP 3327150A4 EP 16830368 A EP16830368 A EP 16830368A EP 3327150 A4 EP3327150 A4 EP 3327150A4
Authority
EP
European Patent Office
Prior art keywords
molten iron
desulfurizing
producing
desulfurizing agent
agent
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
EP16830368.3A
Other languages
German (de)
French (fr)
Other versions
EP3327150B1 (en
EP3327150A1 (en
Inventor
Yoshie Nakai
Naoki Kikuchi
Hideya Masaki
Akira Ichikawa
Hiroharu Ido
Yuji Miki
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=57885668&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3327150(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP3327150A1 publication Critical patent/EP3327150A1/en
Publication of EP3327150A4 publication Critical patent/EP3327150A4/en
Application granted granted Critical
Publication of EP3327150B1 publication Critical patent/EP3327150B1/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
    • 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
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F27D2003/185—Conveying particles in a conduct using a fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
EP16830368.3A 2015-07-24 2016-07-15 Desulfurizing agent, method for desulfurizing molten iron and method for producing molten iron Active EP3327150B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015146930 2015-07-24
PCT/JP2016/071071 WO2017018263A1 (en) 2015-07-24 2016-07-15 Desulfurizing agent, method for desulfurizing molten iron and method for producing molten iron

Publications (3)

Publication Number Publication Date
EP3327150A1 EP3327150A1 (en) 2018-05-30
EP3327150A4 true EP3327150A4 (en) 2018-05-30
EP3327150B1 EP3327150B1 (en) 2019-12-25

Family

ID=57885668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16830368.3A Active EP3327150B1 (en) 2015-07-24 2016-07-15 Desulfurizing agent, method for desulfurizing molten iron and method for producing molten iron

Country Status (7)

Country Link
EP (1) EP3327150B1 (en)
JP (1) JP6156598B2 (en)
KR (1) KR102142198B1 (en)
CN (1) CN107849623B (en)
BR (1) BR112018001331B1 (en)
TW (1) TWI616402B (en)
WO (1) WO2017018263A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102290861B1 (en) * 2017-01-19 2021-08-17 제이에프이 스틸 가부시키가이샤 Desulfurization treatment method and desulfurization agent of molten steel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157209A (en) * 1983-02-25 1984-09-06 Sumitomo Metal Ind Ltd Pretreatment of molten iron
JPS6256509A (en) * 1985-09-04 1987-03-12 Kawasaki Steel Corp Method for desulfurizing molten iron by using quicklime
JPH11221432A (en) * 1998-02-04 1999-08-17 Nittetsu Mining Co Ltd Limestone type desulfurization agent and production of desulfurization agent
JP2007247045A (en) * 2006-03-20 2007-09-27 Jfe Steel Kk Method for desulfurizing molten iron
JP2010163697A (en) * 2010-05-07 2010-07-29 Jfe Steel Corp Method for desulfurizing molten pig iron
JP5101988B2 (en) * 2007-10-26 2012-12-19 新日鐵住金株式会社 Molten metal desulfurization agent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511988B1 (en) 1968-04-20 1976-01-22
JPS5045031Y2 (en) 1971-10-29 1975-12-20
JPH0645485B2 (en) * 1986-05-29 1994-06-15 川崎製鉄株式会社 Method for producing quicklime for refining agent having excellent reactivity
JPH08268717A (en) 1995-03-30 1996-10-15 Ishikawajima Harima Heavy Ind Co Ltd Pre-processing method of lime stone used for desulfurization
CN1368537A (en) * 2001-02-09 2002-09-11 王铁钢 Efficient desulfurizing agent for gas
CN1249208C (en) * 2002-10-11 2006-04-05 天津钢管还原铁厂 Sponge iron efficient desulfurizing agent
JP5130663B2 (en) * 2006-06-09 2013-01-30 Ｊｆｅスチール株式会社 Method for refining molten iron
JP5195737B2 (en) 2009-12-24 2013-05-15 Ｊｆｅスチール株式会社 Hot metal desulfurization method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157209A (en) * 1983-02-25 1984-09-06 Sumitomo Metal Ind Ltd Pretreatment of molten iron
JPS6256509A (en) * 1985-09-04 1987-03-12 Kawasaki Steel Corp Method for desulfurizing molten iron by using quicklime
JPH11221432A (en) * 1998-02-04 1999-08-17 Nittetsu Mining Co Ltd Limestone type desulfurization agent and production of desulfurization agent
JP2007247045A (en) * 2006-03-20 2007-09-27 Jfe Steel Kk 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
JP2010163697A (en) * 2010-05-07 2010-07-29 Jfe Steel Corp Method for desulfurizing molten pig iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017018263A1 *

Also Published As

Publication number Publication date
KR20180016593A (en) 2018-02-14
CN107849623B (en) 2019-06-18
BR112018001331A2 (en) 2018-09-11
JP6156598B2 (en) 2017-07-05
EP3327150B1 (en) 2019-12-25
BR112018001331B1 (en) 2021-09-28
KR102142198B1 (en) 2020-08-06
JPWO2017018263A1 (en) 2017-07-27
CN107849623A (en) 2018-03-27
WO2017018263A1 (en) 2017-02-02
TWI616402B (en) 2018-03-01
EP3327150A1 (en) 2018-05-30
TW201714828A (en) 2017-05-01

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