TW200730630A - Method for manufacturing metallic iron - Google Patents

Method for manufacturing metallic iron

Info

Publication number
TW200730630A
TW200730630A TW095149418A TW95149418A TW200730630A TW 200730630 A TW200730630 A TW 200730630A TW 095149418 A TW095149418 A TW 095149418A TW 95149418 A TW95149418 A TW 95149418A TW 200730630 A TW200730630 A TW 200730630A
Authority
TW
Taiwan
Prior art keywords
raw material
material mixture
metallic iron
molten slag
initial molten
Prior art date
Application number
TW095149418A
Other languages
Chinese (zh)
Other versions
TWI307365B (en
Inventor
Akira Uragami
Isao Kobayashi
Mitsutaka Hino
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of TW200730630A publication Critical patent/TW200730630A/en
Application granted granted Critical
Publication of TWI307365B publication Critical patent/TWI307365B/en

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
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
    • 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
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary hearth-type furnaces
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

A method for manufacturing metallic iron from a raw material mixture containing a carbonaceous reducing agent and an iron oxide-containing material, has a step of determining a target temperature of initial molten slag formation corresponding to a predetermined target carbon concentration in the metallic iron, the initial molten slag containing a gangue component, an unreduced iron oxide, and an ash component of the carbonaceous reducing agent, and being first produced in the raw material mixture by heating thereof; a step of preparing the raw material mixture producing a composition of the initial molten slag corresponding to the target temperature; and a step of heating the raw material mixture to reduce and melt the raw material mixture and to produce the initial molten slag. By this manufacturing method, metallic iron having a target carbon concentration can be efficiently manufactured.
TW095149418A 2006-01-17 2006-12-28 Method for manufacturing metallic iron TWI307365B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006008743A JP4981320B2 (en) 2006-01-17 2006-01-17 Metal iron manufacturing method

Publications (2)

Publication Number Publication Date
TW200730630A true TW200730630A (en) 2007-08-16
TWI307365B TWI307365B (en) 2009-03-11

Family

ID=38287408

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095149418A TWI307365B (en) 2006-01-17 2006-12-28 Method for manufacturing metallic iron

Country Status (8)

Country Link
US (1) US20090282950A1 (en)
JP (1) JP4981320B2 (en)
CN (1) CN101331239B (en)
AU (1) AU2006335814B2 (en)
CA (1) CA2630236C (en)
RU (1) RU2388830C1 (en)
TW (1) TWI307365B (en)
WO (1) WO2007083450A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261101A (en) 2009-04-07 2010-11-18 Mitsutaka Hino Method for producing metallic iron
RU2012145284A (en) * 2010-03-25 2014-04-27 Кабусики Кайся Кобе Сейко Се COMPOSITION OF A CARBON-CONTAINING CARBON MATERIAL OF A IRON OXIDE BRIQUET, METHOD FOR ITS PRODUCTION AND METHOD FOR PRODUCING IRON DIRECT RESTORATION WITH ITS USE
AU2011297158A1 (en) * 2010-08-30 2013-02-14 Kabushiki Kaisha Kobe Seiko Sho Granular metal iron production method
KR101293625B1 (en) 2011-08-26 2013-08-13 우진 일렉트로나이트(주) Determination System for FeO Sensing in Molten Slag
WO2024072742A2 (en) * 2022-09-26 2024-04-04 Electrasteel, Inc. Iron feedstock conversion system with improved efficiency

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR006206A1 (en) * 1996-03-15 1999-08-11 Kobe Seiko Sho Conocida Tambien Como Kobe Steel Ltd Kk METHOD FOR MANUFACTURING METALLIC IRON, DEVICE FOR ITS MANUFACTURE AND REDUCED CONGLOMERATE OBTAINED BY SUCH METHOD AND THROUGH SUCH DEVICE
US6506231B2 (en) * 1996-03-15 2003-01-14 Kabushiki Kaisha Kobe Seiko Sho Method and apparatus for making metallic iron
JPH10195513A (en) * 1996-12-27 1998-07-28 Kobe Steel Ltd Production of metallic iron
JPH10251724A (en) * 1997-03-13 1998-09-22 Kobe Steel Ltd Production of metallic iron and producing equipment therefor
US6149709A (en) * 1997-09-01 2000-11-21 Kabushiki Kaisha Kobe Seiko Sho Method of making iron and steel
JP4159634B2 (en) * 1997-10-23 2008-10-01 株式会社神戸製鋼所 Metallic iron manufacturing method and equipment
JP3848453B2 (en) * 1998-01-09 2006-11-22 株式会社神戸製鋼所 Manufacturing method of metallic iron
US6413295B2 (en) * 1998-11-12 2002-07-02 Midrex International B.V. Rotterdam, Zurich Branch Iron production method of operation in a rotary hearth furnace and improved furnace apparatus
US6063744A (en) * 1999-07-22 2000-05-16 Mcquillen; Edwin F. Cleaning and lubricant formulation for spindles
JP2001279313A (en) * 2000-03-30 2001-10-10 Midrex Internatl Bv Method for producing molten metallic iron
JP2001342509A (en) * 2000-06-02 2001-12-14 Kobe Steel Ltd Method and apparatus for producing metallic iron
JP4330257B2 (en) * 2000-08-09 2009-09-16 株式会社神戸製鋼所 Metal iron manufacturing method

Also Published As

Publication number Publication date
CA2630236C (en) 2012-07-31
CA2630236A1 (en) 2007-07-26
RU2008133606A (en) 2010-02-27
CN101331239B (en) 2012-03-28
US20090282950A1 (en) 2009-11-19
TWI307365B (en) 2009-03-11
JP4981320B2 (en) 2012-07-18
AU2006335814A1 (en) 2007-07-26
WO2007083450A1 (en) 2007-07-26
RU2388830C1 (en) 2010-05-10
JP2007191736A (en) 2007-08-02
CN101331239A (en) 2008-12-24
AU2006335814B2 (en) 2011-04-14

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees