EP4330438C0 - Verfahren zum erzeugen von schlacke mit einer gewünschten beschaffenheit - Google Patents

Verfahren zum erzeugen von schlacke mit einer gewünschten beschaffenheit

Info

Publication number
EP4330438C0
EP4330438C0 EP22725429.9A EP22725429A EP4330438C0 EP 4330438 C0 EP4330438 C0 EP 4330438C0 EP 22725429 A EP22725429 A EP 22725429A EP 4330438 C0 EP4330438 C0 EP 4330438C0
Authority
EP
European Patent Office
Prior art keywords
produceing
slag
desired properties
properties
produceing slag
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
EP22725429.9A
Other languages
English (en)
French (fr)
Other versions
EP4330438A1 (de
EP4330438B1 (de
Inventor
Thomas Baur
Matthias Weinberg
Georg Locher
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.)
ThyssenKrupp Steel Europe AG
Thyssenkrupp Polysius GmbH
Original Assignee
ThyssenKrupp Steel Europe AG
Thyssenkrupp Polysius GmbH
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 ThyssenKrupp Steel Europe AG, Thyssenkrupp Polysius GmbH filed Critical ThyssenKrupp Steel Europe AG
Publication of EP4330438A1 publication Critical patent/EP4330438A1/de
Application granted granted Critical
Publication of EP4330438C0 publication Critical patent/EP4330438C0/de
Publication of EP4330438B1 publication Critical patent/EP4330438B1/de
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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/04—Making slag of special composition
    • 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
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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
    • C21B13/008—Use of special additives or fluxing agents
    • 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
    • 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
    • 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
    • C21C5/36—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
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2300/00—Process aspects
    • C21B2300/02—Particular sequence of the process steps
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2300/00—Process aspects
    • C21B2300/04—Modeling of the process, e.g. for control purposes; CII
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Details (AREA)
EP22725429.9A 2021-04-28 2022-04-25 Verfahren zum erzeugen von schlacke mit einer gewünschten beschaffenheit Active EP4330438B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021204258.9A DE102021204258A1 (de) 2021-04-28 2021-04-28 Schmelzofen zur Erzeugung von Roheisen und Schlacke mit einer gewünschten Beschaffenheit
PCT/EP2022/060867 WO2022229084A1 (de) 2021-04-28 2022-04-25 Verfahren zum erzeugen von schlacke mit einer gewünschten beschaffenheit

Publications (3)

Publication Number Publication Date
EP4330438A1 EP4330438A1 (de) 2024-03-06
EP4330438C0 true EP4330438C0 (de) 2026-03-18
EP4330438B1 EP4330438B1 (de) 2026-03-18

Family

ID=81846309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22725429.9A Active EP4330438B1 (de) 2021-04-28 2022-04-25 Verfahren zum erzeugen von schlacke mit einer gewünschten beschaffenheit

Country Status (7)

Country Link
US (1) US20240376559A1 (de)
EP (1) EP4330438B1 (de)
JP (1) JP2024515791A (de)
KR (1) KR20230160380A (de)
CN (1) CN117441031A (de)
DE (1) DE102021204258A1 (de)
WO (1) WO2022229084A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023105797A1 (de) 2023-03-09 2024-09-12 Thyssenkrupp Steel Europe Ag Verfahren zum Betreiben eines elektrischen Einschmelzers
EP4545502A1 (de) 2023-10-27 2025-04-30 ThyssenKrupp Steel Europe AG Zementmischung und verfahren zu ihrer herstellung
EP4650461A1 (de) 2024-05-13 2025-11-19 ThyssenKrupp Steel Europe AG Verfahren zum aufbereiten von schlacken

Family Cites Families (24)

* 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
US5397376A (en) * 1992-10-06 1995-03-14 Bechtel Group, Inc. Method of providing fuel for an iron making process
AT398419B (de) 1993-01-26 1994-12-27 Holderbank Financ Glarus Verfahren zur herstellung von zement aus metallurgischen schlacken
JP3560677B2 (ja) * 1995-03-24 2004-09-02 日新製鋼株式会社 電極消耗を低減した電気製錬炉の操業方法
AT405523B (de) 1996-03-05 1999-09-27 Voest Alpine Ind Anlagen Verfahren zur herstellung von flüssigem roheisen und zumindest teilreduziertem nichteisen-erz sowie anlage zur durchführung des verfahrens
JP3403093B2 (ja) * 1998-10-21 2003-05-06 三菱重工業株式会社 還元鉄の製造方法および製造設備
AT407644B (de) 1999-06-08 2001-05-25 Voest Alpine Ind Anlagen Verfahren zur schlackenkonditionierung sowie anlage hierzu
JP2001342510A (ja) * 2000-06-02 2001-12-14 Nisshin Steel Co Ltd 金属の精錬方法
DE10215594A1 (de) 2002-04-10 2003-10-30 Thyssenkrupp Stahl Ag Verfahren zur Konditionierung von flüssiger Hochofenschlacke
US6875251B2 (en) * 2002-05-15 2005-04-05 Hatch Ltd. Continuous steelmaking process
AT412283B (de) 2003-05-16 2004-12-27 Voest Alpine Ind Anlagen Verfahren zum verwerten von schlacke
DE10340880A1 (de) 2003-09-04 2005-03-31 Polysius Ag Verfahren und Vorrichtung zum Verdüsen von Schlacke
JP4981462B2 (ja) * 2007-01-22 2012-07-18 電気化学工業株式会社 遮塩性セメントモルタル・コンクリート及びその硬化体
JP2009132546A (ja) * 2007-11-29 2009-06-18 Jfe Steel Corp 溶融スラグの処理方法および装置
DE102007061062B4 (de) * 2007-12-14 2012-08-02 Peiner Träger GmbH Verfahren zum Erzeugen einer bis zu 30% Mangan enthaltenden Stahlschmelze
WO2011135485A1 (en) * 2010-04-26 2011-11-03 Louis Johannes Fourie A method and apparatus for making low phosphorous iron
EP2767597B1 (de) * 2012-06-27 2016-11-02 Nippon Steel & Sumitomo Metal Corporation Verfahren zur Reduktionsverarbeitung von Schlacke aus der Stahlverarbeitung
JP2015227733A (ja) * 2014-05-30 2015-12-17 新日鉄住金エンジニアリング株式会社 溶融金属鉄の製造設備
JP6395684B2 (ja) * 2015-09-14 2018-09-26 株式会社神戸製鋼所 溶銑の製造方法
ITUA20163986A1 (it) * 2016-05-31 2017-12-01 Tenova Spa Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo
JP2018178245A (ja) * 2017-04-05 2018-11-15 株式会社神戸製鋼所 製鉄原料の事前処理方法
IT201900008019A1 (it) * 2019-06-04 2020-12-04 Tenova Spa Metodo e sistema per la produzione di acciaio o di materiali fusi contenenti ferro a emissioni ridotte
CN212293639U (zh) * 2020-04-23 2021-01-05 钢铁研究总院 一种氢冶金装置
DE102020205493A1 (de) 2020-04-30 2021-11-04 Sms Group Gmbh Verfahren zum Herstellen von flüssigem Roheisen aus einem DRI-Produkt

Also Published As

Publication number Publication date
US20240376559A1 (en) 2024-11-14
DE102021204258A1 (de) 2022-11-03
KR20230160380A (ko) 2023-11-23
EP4330438A1 (de) 2024-03-06
WO2022229084A1 (de) 2022-11-03
CN117441031A (zh) 2024-01-23
EP4330438B1 (de) 2026-03-18
JP2024515791A (ja) 2024-04-10

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