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JP7636730B2 - 直接還元鉄の溶解方法、固体鉄の製造方法および土木建築用資材の製造方法 - Google Patents

直接還元鉄の溶解方法、固体鉄の製造方法および土木建築用資材の製造方法 Download PDF

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Publication number
JP7636730B2
JP7636730B2 JP2023547081A JP2023547081A JP7636730B2 JP 7636730 B2 JP7636730 B2 JP 7636730B2 JP 2023547081 A JP2023547081 A JP 2023547081A JP 2023547081 A JP2023547081 A JP 2023547081A JP 7636730 B2 JP7636730 B2 JP 7636730B2
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JP
Japan
Prior art keywords
iron
slag
melting
molten iron
furnace
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JP2023547081A
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English (en)
Japanese (ja)
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JPWO2023204069A1 (fr
Inventor
憲治 中瀬
由枝 中井
涼 川畑
悟郎 奥山
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JFE Steel Corp
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JFE Steel Corp
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Publication of JPWO2023204069A1 publication Critical patent/JPWO2023204069A1/ja
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B5/00—Treatment of  metallurgical  slag ; Artificial stone from molten  metallurgical  slag 
    • C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Details (AREA)
JP2023547081A 2022-04-22 2023-04-10 直接還元鉄の溶解方法、固体鉄の製造方法および土木建築用資材の製造方法 Active JP7636730B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022070755 2022-04-22
JP2022070755 2022-04-22
PCT/JP2023/014495 WO2023204069A1 (fr) 2022-04-22 2023-04-10 Procédé de fusion de fer à réduction directe, fer solide et procédé de production de fer solide, et matériau de génie civil et de construction, et procédé de production de matériau de génie civil et de construction

Publications (2)

Publication Number Publication Date
JPWO2023204069A1 JPWO2023204069A1 (fr) 2023-10-26
JP7636730B2 true JP7636730B2 (ja) 2025-02-27

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JP2023547081A Active JP7636730B2 (ja) 2022-04-22 2023-04-10 直接還元鉄の溶解方法、固体鉄の製造方法および土木建築用資材の製造方法

Country Status (4)

Country Link
JP (1) JP7636730B2 (fr)
AU (1) AU2023255849A1 (fr)
TW (1) TWI844330B (fr)
WO (1) WO2023204069A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4624596A1 (fr) 2024-03-28 2025-10-01 Luossavaara Kiirunavaara Ab Procédé de production de fonte de fer métallique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002528645A (ja) 1998-10-30 2002-09-03 ミドレックス テクノロジーズ，インコーポレイテッド 複式炉における溶融鉄生成方法
JP2004521188A (ja) 2001-02-23 2004-07-15 ポール　ヴルス　エス．エイ． 電気炉内溶融鉄生成方法
US20080087135A1 (en) 2004-09-03 2008-04-17 Jiann-Yang Hwang Microwave heating method and apparatus for iron oxide reduction
JP2009074120A (ja) 2007-09-19 2009-04-09 Kobe Steel Ltd アーク加熱による溶鉄製造方法
JP2011006301A (ja) 2009-06-26 2011-01-13 Nippon Steel Corp 製鋼スラグの処理方法及び改質スラグ
CN101967530A (zh) 2010-10-29 2011-02-09 昆明钢铁集团有限责任公司 一种电冶熔融还原铁的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841697A1 (de) * 1978-09-25 1980-04-10 Mannesmann Ag Verfahren zur herstellung von stahl aus eisenschwamm in elektrischen oefen
KR100862086B1 (ko) * 2002-07-09 2008-10-09 주식회사 포스코 제선공정에서 생성되는 슬래그의 유동성 향상방법
KR101998733B1 (ko) * 2016-12-22 2019-07-10 주식회사 포스코 용선제조장치 및 용선제조방법
WO2019082762A1 (fr) * 2017-10-23 2019-05-02 新日鐵住金株式会社 Four électrique et procédé de fusion et de réduction de matière première de fer contenant de l'oxyde de fer
TWI772835B (zh) * 2019-07-19 2022-08-01 永覲工業股份有限公司 自煉鐵或煉鋼製程副產物中乾式回收石灰的方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002528645A (ja) 1998-10-30 2002-09-03 ミドレックス テクノロジーズ，インコーポレイテッド 複式炉における溶融鉄生成方法
JP2004521188A (ja) 2001-02-23 2004-07-15 ポール　ヴルス　エス．エイ． 電気炉内溶融鉄生成方法
US20080087135A1 (en) 2004-09-03 2008-04-17 Jiann-Yang Hwang Microwave heating method and apparatus for iron oxide reduction
JP2009074120A (ja) 2007-09-19 2009-04-09 Kobe Steel Ltd アーク加熱による溶鉄製造方法
JP2011006301A (ja) 2009-06-26 2011-01-13 Nippon Steel Corp 製鋼スラグの処理方法及び改質スラグ
CN101967530A (zh) 2010-10-29 2011-02-09 昆明钢铁集团有限责任公司 一种电冶熔融还原铁的方法

Also Published As

Publication number Publication date
TWI844330B (zh) 2024-06-01
WO2023204069A1 (fr) 2023-10-26
JPWO2023204069A1 (fr) 2023-10-26
AU2023255849A1 (en) 2024-10-10
TW202409300A (zh) 2024-03-01

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