AU2023255850B2 - Method for producing grained iron, and grained iron - Google Patents

Method for producing grained iron, and grained iron

Info

Publication number
AU2023255850B2
AU2023255850B2 AU2023255850A AU2023255850A AU2023255850B2 AU 2023255850 B2 AU2023255850 B2 AU 2023255850B2 AU 2023255850 A AU2023255850 A AU 2023255850A AU 2023255850 A AU2023255850 A AU 2023255850A AU 2023255850 B2 AU2023255850 B2 AU 2023255850B2
Authority
AU
Australia
Prior art keywords
iron
dephosphorization
molten iron
grained
concentration
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.)
Active
Application number
AU2023255850A
Other languages
English (en)
Other versions
AU2023255850A1 (en
Inventor
Ryo Kawabata
Kenji Nakase
Futoshi Ogasawara
Tomohiro Sugino
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 AU2023255850A1 publication Critical patent/AU2023255850A1/en
Application granted granted Critical
Publication of AU2023255850B2 publication Critical patent/AU2023255850B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
AU2023255850A 2022-04-22 2023-04-10 Method for producing grained iron, and grained iron Active AU2023255850B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022070747 2022-04-22
JP2022-070747 2022-04-22
PCT/JP2023/014502 WO2023204071A1 (ja) 2022-04-22 2023-04-10 粒鉄の製造方法および粒鉄

Publications (2)

Publication Number Publication Date
AU2023255850A1 AU2023255850A1 (en) 2024-10-24
AU2023255850B2 true AU2023255850B2 (en) 2026-01-29

Family

ID=88420043

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2023255850A Active AU2023255850B2 (en) 2022-04-22 2023-04-10 Method for producing grained iron, and grained iron

Country Status (5)

Country Link
US (1) US20250243554A1 (https=)
JP (1) JP7666615B2 (https=)
AU (1) AU2023255850B2 (https=)
TW (1) TWI858647B (https=)
WO (1) WO2023204071A1 (https=)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011144431A (ja) * 2010-01-15 2011-07-28 Kobe Steel Ltd 極低りん鋼溶製のための脱りん方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491996B1 (https=) * 1970-02-04 1974-01-17
JPS5439357A (en) * 1977-09-02 1979-03-26 Hitachi Ltd Continuous production method of steel pellet
JPS5785905A (en) * 1980-11-14 1982-05-28 Sumitomo Metal Ind Ltd Spray medium for production of metallic powder
JPH01252753A (ja) * 1988-03-31 1989-10-09 Kawasaki Steel Corp ステンレス鋼母溶湯の溶製方法並びに溶製用の反応容器底部羽口配列及び底部羽口
CN105420490B (zh) * 2015-11-25 2017-11-17 内蒙古科技大学 一种对转炉渣进行脱磷的方法
JP6773142B2 (ja) * 2017-02-15 2020-10-21 日本製鉄株式会社 脱りん処理方法
JP7247934B2 (ja) * 2020-03-31 2023-03-29 Ｊｆｅスチール株式会社 粒鉄製造装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011144431A (ja) * 2010-01-15 2011-07-28 Kobe Steel Ltd 極低りん鋼溶製のための脱りん方法

Also Published As

Publication number Publication date
AU2023255850A1 (en) 2024-10-24
TWI858647B (zh) 2024-10-11
WO2023204071A1 (ja) 2023-10-26
JP7666615B2 (ja) 2025-04-22
TW202344694A (zh) 2023-11-16
US20250243554A1 (en) 2025-07-31
JPWO2023204071A1 (https=) 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 PRODUCING GRAINED IRON, AND GRAINED IRON