JPWO2023054345A1 - - Google Patents

Info

Publication number
JPWO2023054345A1
JPWO2023054345A1 JP2023551517A JP2023551517A JPWO2023054345A1 JP WO2023054345 A1 JPWO2023054345 A1 JP WO2023054345A1 JP 2023551517 A JP2023551517 A JP 2023551517A JP 2023551517 A JP2023551517 A JP 2023551517A JP WO2023054345 A1 JPWO2023054345 A1 JP WO2023054345A1
Authority
JP
Japan
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.)
Granted
Application number
JP2023551517A
Other versions
JP7518455B2 (ja
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 filed Critical
Publication of JPWO2023054345A1 publication Critical patent/JPWO2023054345A1/ja
Application granted granted Critical
Publication of JP7518455B2 publication Critical patent/JP7518455B2/ja
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
    • 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
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/02—General features in the manufacture of pig-iron by applying additives, e.g. fluxing agents
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • 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
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/54—Processes yielding slags of special composition
    • 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
    • C21C7/072—Treatment with gases
    • 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
    • C21C7/076—Use of slags or fluxes as treating agents

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)
  • Furnace Charging Or Discharging (AREA)
JP2023551517A 2021-09-30 2022-09-27 溶銑製造方法 Active JP7518455B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021161078 2021-09-30
JP2021161078 2021-09-30
PCT/JP2022/035903 WO2023054345A1 (ja) 2021-09-30 2022-09-27 溶銑製造方法

Publications (2)

Publication Number Publication Date
JPWO2023054345A1 true JPWO2023054345A1 (ja) 2023-04-06
JP7518455B2 JP7518455B2 (ja) 2024-07-18

Family

ID=85782753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023551517A Active JP7518455B2 (ja) 2021-09-30 2022-09-27 溶銑製造方法

Country Status (6)

Country Link
EP (1) EP4411000A1 (ja)
JP (1) JP7518455B2 (ja)
KR (1) KR20240035546A (ja)
CN (1) CN117858968A (ja)
CA (1) CA3226561A1 (ja)
WO (1) WO2023054345A1 (ja)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178711A (ja) * 1974-12-30 1976-07-08 Kawasaki Heavy Ind Ltd Denkiaakushikiseikohoho oyobi sonosochi
JP3175079B2 (ja) * 1996-02-20 2001-06-11 新日本製鐵株式会社 鉄系スクラップ溶解方法
US6149709A (en) 1997-09-01 2000-11-21 Kabushiki Kaisha Kobe Seiko Sho Method of making iron and steel
JP5589688B2 (ja) 2009-09-10 2014-09-17 Ｊｆｅスチール株式会社 溶銑の製造方法
JP5541423B1 (ja) 2012-06-27 2014-07-09 新日鐵住金株式会社 製鋼スラグ還元処理装置及び製鋼スラグ還元処理システム
JP6003911B2 (ja) 2014-01-30 2016-10-05 Ｊｆｅスチール株式会社 リン酸質肥料原料、リン酸質肥料およびその製造方法
JP6395684B2 (ja) 2015-09-14 2018-09-26 株式会社神戸製鋼所 溶銑の製造方法
JP6597332B2 (ja) 2016-01-18 2019-10-30 日本製鉄株式会社 リン酸肥料の製造方法及びリン酸肥料の製造装置
CN110073161B (zh) 2016-12-16 2020-06-05 日本制铁株式会社 电炉
JP6620781B2 (ja) 2017-05-15 2019-12-18 Ｊｆｅスチール株式会社 ダストの溶融還元方法及び再利用方法
JP7094259B2 (ja) * 2019-11-21 2022-07-01 株式会社神戸製鋼所 溶鋼の製造方法
JP7364899B2 (ja) 2020-02-27 2023-10-19 日本製鉄株式会社 スラグ還元を伴った冷鉄源の溶解方法
JP7544501B2 (ja) 2020-03-31 2024-09-03 株式会社コーセー ベシクル組成物及びそれを配合した化粧料

Also Published As

Publication number Publication date
CN117858968A (zh) 2024-04-09
CA3226561A1 (en) 2023-04-06
WO2023054345A1 (ja) 2023-04-06
JP7518455B2 (ja) 2024-07-18
EP4411000A1 (en) 2024-08-07
KR20240035546A (ko) 2024-03-15

Similar Documents

Publication Publication Date Title
BR112023005462A2 (ja)
BR112023012656A2 (ja)
BR112021014123A2 (ja)
BR112022009896A2 (ja)
BR112023009656A2 (ja)
BR112022024743A2 (ja)
BR112023006729A2 (ja)
BR102021018859A2 (ja)
BR102021015500A2 (ja)
BR102021007058A2 (ja)
BR112023008622A2 (ja)
BR102020022030A2 (ja)
BR112023011738A2 (ja)
BR112023016292A2 (ja)
BR112023004146A2 (ja)
BR112023011610A2 (ja)
BR112023011539A2 (ja)
BR112023008976A2 (ja)
BR102021020147A2 (ja)
BR102021018926A2 (ja)
BR102021018167A2 (ja)
BR102021017576A2 (ja)
BR102021016837A2 (ja)
BR102021016551A2 (ja)
BR102021016375A2 (ja)

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20240126

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20240126

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20240402

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240522

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20240604

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240617

R150 Certificate of patent or registration of utility model

Ref document number: 7518455

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150