WO2005014866A3 - Process and plant for reducing solids containing iron oxide - Google Patents

Process and plant for reducing solids containing iron oxide Download PDF

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Publication number
WO2005014866A3
WO2005014866A3 PCT/EP2004/007904 EP2004007904W WO2005014866A3 WO 2005014866 A3 WO2005014866 A3 WO 2005014866A3 EP 2004007904 W EP2004007904 W EP 2004007904W WO 2005014866 A3 WO2005014866 A3 WO 2005014866A3
Authority
WO
WIPO (PCT)
Prior art keywords
solids
stage
iron oxide
containing iron
solids containing
Prior art date
Application number
PCT/EP2004/007904
Other languages
French (fr)
Other versions
WO2005014866A2 (en
Inventor
Stuart Sneyd
Martin Hirsch
Dirk Nuber
Original Assignee
Outokumpu Oy
Stuart Sneyd
Martin Hirsch
Dirk Nuber
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34129525&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2005014866(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Outokumpu Oy, Stuart Sneyd, Martin Hirsch, Dirk Nuber filed Critical Outokumpu Oy
Priority to EA200600389A priority Critical patent/EA011430B1/en
Priority to US10/567,821 priority patent/US20070079666A1/en
Priority to AU2004262646A priority patent/AU2004262646A1/en
Priority to CA002534863A priority patent/CA2534863A1/en
Priority to BRPI0413371-4A priority patent/BRPI0413371A/en
Publication of WO2005014866A2 publication Critical patent/WO2005014866A2/en
Publication of WO2005014866A3 publication Critical patent/WO2005014866A3/en

Links

Classifications

    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/18—Reducing step-by-step
    • 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
    • C21B13/008—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
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • 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
    • C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C22B5/14—Dry methods smelting of sulfides or formation of mattes by gases fluidised material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

This invention relates to a process for reducing solids containing iron oxide, such as iron ore, in which fine-grained solids are heated and at least partly calcined in a pre heating stage (2, 9). In a first fluidized-bed reactor (14) downstream of the preheating stage (2, 9), the solids are prereduced and reduced further in a second fluidized-bed reactor (16). Downstream of the second reactor (16) a briquetting stage (20) is pro vided, in which the solids are briquetted at a temperature above 500°C To increase the energy efficiency of the process and improve the flowability of the solids in the briquetting stage (20), magnesite is added to the preheating stage (2, 9) together with the solids containing iron oxide, which magnesite is at least partly calcined in the preheating stage (2, 9) to obtain magnesium oxide. Furthermore, the invention relates to a corresponding plant.
PCT/EP2004/007904 2003-08-09 2004-07-16 Process and plant for reducing solids containing iron oxide WO2005014866A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EA200600389A EA011430B1 (en) 2003-08-09 2004-07-16 Process and plant for reducing solids containing iron oxide
US10/567,821 US20070079666A1 (en) 2003-08-09 2004-07-16 Process and plant for reducing solids containing iron oxide
AU2004262646A AU2004262646A1 (en) 2003-08-09 2004-07-16 Process and plant for reducing solids containing iron oxide
CA002534863A CA2534863A1 (en) 2003-08-09 2004-07-16 Process and plant for reducing solids containing iron oxide
BRPI0413371-4A BRPI0413371A (en) 2003-08-09 2004-07-16 process and apparatus for reducing solids containing iron oxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10336676A DE10336676C5 (en) 2003-08-09 2003-08-09 Process and plant for the reduction of iron oxide-containing solids
DE10336676.8 2003-08-09

Publications (2)

Publication Number Publication Date
WO2005014866A2 WO2005014866A2 (en) 2005-02-17
WO2005014866A3 true WO2005014866A3 (en) 2005-03-31

Family

ID=34129525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/007904 WO2005014866A2 (en) 2003-08-09 2004-07-16 Process and plant for reducing solids containing iron oxide

Country Status (9)

Country Link
US (1) US20070079666A1 (en)
CN (1) CN100366757C (en)
AU (1) AU2004262646A1 (en)
BR (1) BRPI0413371A (en)
CA (1) CA2534863A1 (en)
DE (1) DE10336676C5 (en)
EA (1) EA011430B1 (en)
WO (1) WO2005014866A2 (en)
ZA (1) ZA200600898B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009038052B4 (en) 2009-08-19 2012-09-27 Wolfgang Krumm Smelting process by using a pre-reduced Ilmeniterzstromes and / or Hematitezstromes
DE102015107433A1 (en) * 2015-05-12 2016-11-17 Outotec (Finland) Oy Process and plant for the production of calcined petroleum coke
DE102016103349A1 (en) * 2016-02-25 2017-08-31 Outotec (Finland) Oy Method and device for thermal treatment of a contaminated solid
CN109136539B (en) * 2018-07-05 2020-06-23 沈阳化工大学 Integrated process of fluidized bed two-stage gasification and flash light burning magnesite
CN115341061B (en) * 2021-05-13 2024-01-02 中国科学院过程工程研究所 Method for efficiently fluidizing and reducing vanadium titano-magnetite fine powder
DE102021205828A1 (en) * 2021-06-09 2022-12-15 Refratechnik Holding Gmbh Process and apparatus for producing a calcined material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792298A (en) * 1954-04-09 1957-05-14 Freeman Horace Iron oxide reduction
DE4410093C1 (en) * 1994-03-24 1995-03-09 Metallgesellschaft Ag Process for the direct reduction of materials containing iron oxides
US6277324B1 (en) * 1997-12-20 2001-08-21 Pohang Iron & Steel Co. Ltd Apparatus for manufacturing molten pig iron and reduced iron by utilizing a fluidized bed

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393066A (en) * 1964-09-21 1968-07-16 Exxon Research Engineering Co Process for reduction of iron ore in staged fluid beds without bogging
DE1458756A1 (en) * 1964-09-21 1969-02-06 Esso Res & Engineering Company Process for the production of sponge iron from oxidic iron ores
AT404735B (en) * 1992-10-22 1999-02-25 Voest Alpine Ind Anlagen METHOD AND INSTALLATION FOR THE PRODUCTION OF LIQUID PIPE IRON OR LIQUID STEEL PRE-PRODUCTS
EP0630975B1 (en) * 1993-06-19 1997-07-23 Metallgesellschaft Ag Process for the direct reducing of material containing iron oxide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792298A (en) * 1954-04-09 1957-05-14 Freeman Horace Iron oxide reduction
DE4410093C1 (en) * 1994-03-24 1995-03-09 Metallgesellschaft Ag Process for the direct reduction of materials containing iron oxides
US6277324B1 (en) * 1997-12-20 2001-08-21 Pohang Iron & Steel Co. Ltd Apparatus for manufacturing molten pig iron and reduced iron by utilizing a fluidized bed

Also Published As

Publication number Publication date
CN100366757C (en) 2008-02-06
BRPI0413371A (en) 2006-10-17
WO2005014866A2 (en) 2005-02-17
DE10336676C5 (en) 2011-03-31
ZA200600898B (en) 2007-05-30
EA200600389A1 (en) 2006-08-25
US20070079666A1 (en) 2007-04-12
DE10336676B4 (en) 2005-09-29
DE10336676A1 (en) 2005-03-17
CA2534863A1 (en) 2005-02-17
EA011430B1 (en) 2009-02-27
AU2004262646A1 (en) 2005-02-17
CN1826416A (en) 2006-08-30

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