BR112018001331A2 - A desulfurization agent, a molten iron desulfurization method, and a manufacturing method of molten iron - Google Patents

A desulfurization agent, a molten iron desulfurization method, and a manufacturing method of molten iron

Info

Publication number
BR112018001331A2
BR112018001331A2 BR112018001331-5A BR112018001331A BR112018001331A2 BR 112018001331 A2 BR112018001331 A2 BR 112018001331A2 BR 112018001331 A BR112018001331 A BR 112018001331A BR 112018001331 A2 BR112018001331 A2 BR 112018001331A2
Authority
BR
Brazil
Prior art keywords
desulfurization
molten iron
manufacturing
hot metal
agent
Prior art date
Application number
BR112018001331-5A
Other languages
Japanese (ja)
Portuguese (pt)
Other versions
BR112018001331B1 (en
Inventor
Nakai Yoshie
Kikuchi Naoki
Masaki Hideya
Ichikawa Akira
Ido Hiroharu
Miki Yuji
Original Assignee
Jfe Steel Corporation
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=BR112018001331(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jfe Steel Corporation filed Critical Jfe Steel Corporation
Publication of BR112018001331A2 publication Critical patent/BR112018001331A2/en
Publication of BR112018001331B1 publication Critical patent/BR112018001331B1/en

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)

Abstract

para fornecer um método para dessulfurizar metal quente e um método para produzir metal quente, que tenham excelente eficiência de dessulfurização e sejam capazes de reduzir o custo necessário para o tratamento de dessulfurização. um fluxo de dessulfurização usado para dessulfurização de metal quente compreendendo cal viva em que um volume de poro total definido como uma soma de volumes de poros tendo um diâmetro de poro de 0,5 µm a 10 µm é 0,1 ml/g ou mais.to provide a method for desulphurizing hot metal and a method for producing hot metal, which have excellent desulphurisation efficiency and are capable of reducing the cost required for desulphurisation treatment. a desulfurization stream used for hot metal desulfurization comprising quicklime in which a total pore volume defined as a sum of pore volumes having a pore diameter of 0.5 µm to 10 µm is 0.1 ml / g or more .

BR112018001331-5A 2015-07-24 2016-07-15 DESULFURIZATION FLOW, METHOD TO DESULFURIZE HOT METAL AND METHOD TO PRODUCE HOT METAL BR112018001331B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015146930 2015-07-24
JP2015-146930 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 (2)

Publication Number Publication Date
BR112018001331A2 true BR112018001331A2 (en) 2018-09-11
BR112018001331B1 BR112018001331B1 (en) 2021-09-28

Family

ID=57885668

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018001331-5A BR112018001331B1 (en) 2015-07-24 2016-07-15 DESULFURIZATION FLOW, METHOD TO DESULFURIZE HOT METAL AND METHOD TO PRODUCE HOT METAL

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

Family Cites Families (14)

* 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
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
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
JPH11221432A (en) * 1998-02-04 1999-08-17 Nittetsu Mining Co Ltd Limestone type desulfurization agent and production of desulfurization agent
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
JP4961787B2 (en) * 2006-03-20 2012-06-27 Ｊｆｅスチール株式会社 Hot metal desulfurization method
JP5130663B2 (en) * 2006-06-09 2013-01-30 Ｊｆｅスチール株式会社 Method for refining molten iron
JP5101988B2 (en) * 2007-10-26 2012-12-19 新日鐵住金株式会社 Molten metal desulfurization agent
JP5195737B2 (en) 2009-12-24 2013-05-15 Ｊｆｅスチール株式会社 Hot metal desulfurization method
JP5177170B2 (en) * 2010-05-07 2013-04-03 Ｊｆｅスチール株式会社 Hot metal desulfurization method

Also Published As

Publication number Publication date
WO2017018263A1 (en) 2017-02-02
EP3327150A1 (en) 2018-05-30
CN107849623A (en) 2018-03-27
CN107849623B (en) 2019-06-18
KR102142198B1 (en) 2020-08-06
EP3327150B1 (en) 2019-12-25
BR112018001331B1 (en) 2021-09-28
TWI616402B (en) 2018-03-01
EP3327150A4 (en) 2018-05-30
TW201714828A (en) 2017-05-01
KR20180016593A (en) 2018-02-14
JPWO2017018263A1 (en) 2017-07-27
JP6156598B2 (en) 2017-07-05

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/07/2016, OBSERVADAS AS CONDICOES LEGAIS.