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AU2023255849A1 - Method for melting direct reduced iron, solid iron and method for producing the same, and material for civil engineering and construction and method for producing the same - Google Patents

Method for melting direct reduced iron, solid iron and method for producing the same, and material for civil engineering and construction and method for producing the same Download PDF

Info

Publication number
AU2023255849A1
AU2023255849A1 AU2023255849A AU2023255849A AU2023255849A1 AU 2023255849 A1 AU2023255849 A1 AU 2023255849A1 AU 2023255849 A AU2023255849 A AU 2023255849A AU 2023255849 A AU2023255849 A AU 2023255849A AU 2023255849 A1 AU2023255849 A1 AU 2023255849A1
Authority
AU
Australia
Prior art keywords
slag
iron
melting
gas
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.)
Pending
Application number
AU2023255849A
Other languages
English (en)
Inventor
Ryo Kawabata
Yoshie Nakai
Kenji Nakase
Goro Okuyama
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 AU2023255849A1 publication Critical patent/AU2023255849A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • 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)
AU2023255849A 2022-04-22 2023-04-10 Method for melting direct reduced iron, solid iron and method for producing the same, and material for civil engineering and construction and method for producing the same Pending AU2023255849A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022-070755 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 (1)

Publication Number Publication Date
AU2023255849A1 true AU2023255849A1 (en) 2024-10-10

Family

ID=88419983

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2023255849A Pending AU2023255849A1 (en) 2022-04-22 2023-04-10 Method for melting direct reduced iron, solid iron and method for producing the same, and material for civil engineering and construction and method for producing the same

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

Family Cites Families (11)

* 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
JP4060034B2 (ja) 1998-10-30 2008-03-12 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
AU2002250975B2 (en) 2001-02-23 2006-11-23 Paul Wurth S.A. Method for producing a melt iron in an electric furnace
KR100862086B1 (ko) * 2002-07-09 2008-10-09 주식회사 포스코 제선공정에서 생성되는 슬래그의 유동성 향상방법
US8540794B2 (en) 2004-09-03 2013-09-24 Jiann-Yang Hwang Method for reducing iron oxide and producing syngas
JP5166805B2 (ja) 2007-09-19 2013-03-21 株式会社神戸製鋼所 アーク加熱による溶鉄製造方法
JP5444883B2 (ja) 2009-06-26 2014-03-19 新日鐵住金株式会社 改質スラグ
CN101967530B (zh) 2010-10-29 2012-05-02 昆明钢铁集团有限责任公司 一种电冶熔融还原铁的方法
KR101998733B1 (ko) * 2016-12-22 2019-07-10 주식회사 포스코 용선제조장치 및 용선제조방법
JP6911935B2 (ja) * 2017-10-23 2021-07-28 日本製鉄株式会社 電気炉及び酸化鉄含有鉄原料の溶解及び還元方法
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

Also Published As

Publication number Publication date
TW202409300A (zh) 2024-03-01
JP7636730B2 (ja) 2025-02-27
JPWO2023204069A1 (fr) 2023-10-26
TWI844330B (zh) 2024-06-01
WO2023204069A1 (fr) 2023-10-26

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Legal Events

Date Code Title Description
DA3 Amendments made section 104

Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ METHOD FOR MELTING DIRECT REDUCED IRON, SOLID IRON AND METHOD FOR PRODUCING THE SAME, AND MATERIAL FOR CIVIL ENGINEERING AND CONSTRUCTION AND METHOD FOR PRODUCING THE SAME