JP7666615B2 - 粒鉄の製造方法 - Google Patents

粒鉄の製造方法 Download PDF

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Publication number
JP7666615B2
JP7666615B2 JP2023547085A JP2023547085A JP7666615B2 JP 7666615 B2 JP7666615 B2 JP 7666615B2 JP 2023547085 A JP2023547085 A JP 2023547085A JP 2023547085 A JP2023547085 A JP 2023547085A JP 7666615 B2 JP7666615 B2 JP 7666615B2
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JP
Japan
Prior art keywords
iron
molten iron
concentration
flow control
water flow
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
JP2023547085A
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English (en)
Japanese (ja)
Other versions
JPWO2023204071A1 (enrdf_load_stackoverflow
Inventor
智裕 杉野
憲治 中瀬
太 小笠原
涼 川畑
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 JPWO2023204071A1 publication Critical patent/JPWO2023204071A1/ja
Application granted granted Critical
Publication of JP7666615B2 publication Critical patent/JP7666615B2/ja
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Classifications

    • 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
    • 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
    • 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)
JP2023547085A 2022-04-22 2023-04-10 粒鉄の製造方法 Active JP7666615B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022070747 2022-04-22
JP2022070747 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
JPWO2023204071A1 JPWO2023204071A1 (enrdf_load_stackoverflow) 2023-10-26
JP7666615B2 true JP7666615B2 (ja) 2025-04-22

Family

ID=88420043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023547085A Active JP7666615B2 (ja) 2022-04-22 2023-04-10 粒鉄の製造方法

Country Status (5)

Country Link
US (1) US20250243554A1 (enrdf_load_stackoverflow)
JP (1) JP7666615B2 (enrdf_load_stackoverflow)
AU (1) AU2023255850A1 (enrdf_load_stackoverflow)
TW (1) TWI858647B (enrdf_load_stackoverflow)
WO (1) WO2023204071A1 (enrdf_load_stackoverflow)

Citations (2)

* 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
JP2021161465A (ja) 2020-03-31 2021-10-11 Ｊｆｅスチール株式会社 粒鉄製造装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491996B1 (enrdf_load_stackoverflow) * 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
KR102164124B1 (ko) * 2017-02-15 2020-10-12 닛폰세이테츠 가부시키가이샤 탈인 처리 장치 및 그것을 사용한 용선의 탈인 방법

Patent Citations (2)

* 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
JP2021161465A (ja) 2020-03-31 2021-10-11 Ｊｆｅスチール株式会社 粒鉄製造装置

Also Published As

Publication number Publication date
TWI858647B (zh) 2024-10-11
TW202344694A (zh) 2023-11-16
US20250243554A1 (en) 2025-07-31
WO2023204071A1 (ja) 2023-10-26
AU2023255850A1 (en) 2024-10-24
JPWO2023204071A1 (enrdf_load_stackoverflow) 2023-10-26

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