EP4575004A4 - Verfahren zur herstellung von reduziertem eisen - Google Patents

Verfahren zur herstellung von reduziertem eisen

Info

Publication number
EP4575004A4
EP4575004A4 EP23865056.8A EP23865056A EP4575004A4 EP 4575004 A4 EP4575004 A4 EP 4575004A4 EP 23865056 A EP23865056 A EP 23865056A EP 4575004 A4 EP4575004 A4 EP 4575004A4
Authority
EP
European Patent Office
Prior art keywords
production device
reduced iron
iron production
reduced
production
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
EP23865056.8A
Other languages
English (en)
French (fr)
Other versions
EP4575004A1 (de
Inventor
Kenya HORITA
Takahide Higuchi
Yuji Iwami
Kenta Takehara
Naoto Nakamura
Shohei Fujiwara
Yuya Morita
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 EP4575004A1 publication Critical patent/EP4575004A1/de
Publication of EP4575004A4 publication Critical patent/EP4575004A4/de
Pending legal-status Critical Current

Links

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
    • C21B13/008—Use of special additives or fluxing agents
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
EP23865056.8A 2022-09-16 2023-07-11 Verfahren zur herstellung von reduziertem eisen Pending EP4575004A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022148511 2022-09-16
PCT/JP2023/025631 WO2024057694A1 (ja) 2022-09-16 2023-07-11 還元鉄の製造方法

Publications (2)

Publication Number Publication Date
EP4575004A1 EP4575004A1 (de) 2025-06-25
EP4575004A4 true EP4575004A4 (de) 2025-10-15

Family

ID=90274605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23865056.8A Pending EP4575004A4 (de) 2022-09-16 2023-07-11 Verfahren zur herstellung von reduziertem eisen

Country Status (7)

Country Link
US (1) US20260071287A1 (de)
EP (1) EP4575004A4 (de)
JP (1) JP7477064B1 (de)
CN (1) CN119866381A (de)
AU (1) AU2023341035A1 (de)
CA (1) CA3262920A1 (de)
WO (1) WO2024057694A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1204637A (en) * 1968-04-17 1970-09-09 Metallgesellschaft Ag Process of producing reduced iron ore pellets
US4504306A (en) * 1981-07-10 1985-03-12 Nippon Kokan Kabushiki Kaisha Method of producing agglomerates
CN1842604B (zh) * 2003-09-23 2010-05-05 刘汉卿 自还原冷固结球团及其制造方法
WO2016170467A1 (en) * 2015-04-24 2016-10-27 Sabic Global Technologies B.V. Composite iron pellets and methods of making same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55113818A (en) * 1979-02-23 1980-09-02 Kobe Steel Ltd Shaft furnace for iron ore high temperature reduction
JP2002363624A (ja) * 2001-06-13 2002-12-18 Mitsubishi Heavy Ind Ltd 還元鉄製造方法及び装置
WO2022264549A1 (ja) * 2021-06-18 2022-12-22 Ｊｆｅスチール株式会社 塊成鉱の評価方法および塊成鉱

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1204637A (en) * 1968-04-17 1970-09-09 Metallgesellschaft Ag Process of producing reduced iron ore pellets
US4504306A (en) * 1981-07-10 1985-03-12 Nippon Kokan Kabushiki Kaisha Method of producing agglomerates
CN1842604B (zh) * 2003-09-23 2010-05-05 刘汉卿 自还原冷固结球团及其制造方法
WO2016170467A1 (en) * 2015-04-24 2016-10-27 Sabic Global Technologies B.V. Composite iron pellets and methods of making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024057694A1 *

Also Published As

Publication number Publication date
CN119866381A (zh) 2025-04-22
CA3262920A1 (en) 2025-06-09
US20260071287A1 (en) 2026-03-12
JPWO2024057694A1 (de) 2024-03-21
EP4575004A1 (de) 2025-06-25
WO2024057694A1 (ja) 2024-03-21
JP7477064B1 (ja) 2024-05-01
AU2023341035A1 (en) 2025-02-13

Similar Documents

Publication Publication Date Title
EP4091336A4 (de) Akustische ausgabevorrichtung
EP4228283A4 (de) Akustische ausgabevorrichtung
CL2020002906S1 (es) Aparato electrónico.
CL2020002916S1 (es) Dispositivo electrónico.
EP4083328C0 (de) Monopile-führungsvorrichtung
EP4067214A4 (de) Laufvorrichtung
EP3804897A4 (de) Steuervorrichtung für lötkolben
EP3882552C0 (de) Tauschervorrichtung
CL2023003458S1 (es) Dispositivo electrónico.
EP4080680A4 (de) Antennenvorrichtung
FR2958194B1 (fr) Procede et dispositif pour la fabrication d'une virole bi-materiaux, et virole ainsi realisee.
EP3884959A4 (de) Inhibitor der zellulären eisenaufnahme
EP4475336A4 (de) Wearable-vorrichtung
EP4575004A4 (de) Verfahren zur herstellung von reduziertem eisen
EP4379119C0 (de) Wäschepflegegerät
EP4151363C0 (de) Strahlgerät
EP4287910A4 (de) Oberkörpervorrichtung
EP4270660A4 (de) Antennenvorrichtung
EP4136022A4 (de) Flotationsvorrichtung
EP4113194A4 (de) Kopfmontierte anzeigevorrichtung
EP4174009A4 (de) Aufzugsvorrichtung
FR3052335B1 (fr) Procede de fabrication d'un fer a cheval
EP4506048C0 (de) Puppenvorrichtung
EP4085457A4 (de) Überblendvorrichtung
EP4227648A4 (de) Kodiervorrichtung

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250319

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20250911

RIC1 Information provided on ipc code assigned before grant

Ipc: C21B 13/02 20060101AFI20250905BHEP

Ipc: C22B 1/16 20060101ALI20250905BHEP

Ipc: C21B 11/10 20060101ALI20250905BHEP

Ipc: C21B 13/12 20060101ALI20250905BHEP

Ipc: C22B 1/24 20060101ALI20250905BHEP

Ipc: C21B 3/02 20060101ALN20250905BHEP

Ipc: C22B 1/243 20060101ALN20250905BHEP

Ipc: C22B 1/245 20060101ALN20250905BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)