BR0205798A - Método para produzir ferro metálico - Google Patents

Método para produzir ferro metálico

Info

Publication number
BR0205798A
BR0205798A BR0205798-0A BR0205798A BR0205798A BR 0205798 A BR0205798 A BR 0205798A BR 0205798 A BR0205798 A BR 0205798A BR 0205798 A BR0205798 A BR 0205798A
Authority
BR
Brazil
Prior art keywords
core
metallic iron
iron
crucible
mixture
Prior art date
Application number
BR0205798-0A
Other languages
English (en)
Inventor
Osamu Tsuge
Yasuhiro Tanigaki
Isao Kobayashi
Koji Tokuda
Shoichi Kikuchi
Shuzo Ito
Original Assignee
Midrex Int Bv Zuerich
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 Midrex Int Bv Zuerich filed Critical Midrex Int Bv Zuerich
Publication of BR0205798A publication Critical patent/BR0205798A/pt

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
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type 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
    • C21B13/0006—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
    • C21B13/0046—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
    • 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
    • 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
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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 Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Tunnel Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

"MéTODO PARA PRODUZIR FERRO METáLICO". A presente invenção e intencionada a prover um método para produzir ferro metálico, o qual compreende as etapas de fornecer uma mistura contendo um agente redutor carbonáceo e óxidos de ferro em um cadinho de um forno de fusão de redução do tipo de cadinho móvel, aquecer a mistura para fusão de redução dos óxidos de ferro, resfriar ferro metálico assim obtido, e descarregar o ferro metálico para o exterior do forno para recuperação. O método pode facilmente remover ou reparar a superfície de um núcleo mesmo quando pó de ferro metálico está enterrado na superfície do núcleo ou até mesmo quando a superfície do núcleo sofre de infiltração e erosão de escória, pode aumentar um fator de disponibilidade e de manutencibilidade do cadinho, e é adequadamente praticado para operação contínua de longo prazo. A presente invenção reside em um método para produzir ferro metálico, onde um material de núcleo é depositado na forma de uma camada no cadinho antes de suprir a mistura, formando assim um núcleo renovável capaz de ser renovado, e o ferro metálico é produzido enquanto renovando uma parte ou todo o núcleo renovável, o qual se deteriorou durante operação, com o material de núcleo.
BR0205798-0A 2001-07-12 2002-06-17 Método para produzir ferro metálico BR0205798A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001212714A JP4266284B2 (ja) 2001-07-12 2001-07-12 金属鉄の製法
PCT/JP2002/005995 WO2003008652A1 (en) 2001-07-12 2002-06-17 Method of manufacturing metal iron

Publications (1)

Publication Number Publication Date
BR0205798A true BR0205798A (pt) 2003-07-29

Family

ID=19047826

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0205798-0A BR0205798A (pt) 2001-07-12 2002-06-17 Método para produzir ferro metálico

Country Status (15)

Country Link
US (2) US20040173054A1 (pt)
EP (1) EP1405925A4 (pt)
JP (1) JP4266284B2 (pt)
KR (1) KR100660657B1 (pt)
CN (1) CN100478454C (pt)
AU (1) AU2002311296B9 (pt)
BR (1) BR0205798A (pt)
CA (1) CA2448361C (pt)
MX (1) MXPA04000246A (pt)
PL (1) PL198614B1 (pt)
RU (1) RU2274660C2 (pt)
TW (1) TW533238B (pt)
UA (1) UA76991C2 (pt)
WO (1) WO2003008652A1 (pt)
ZA (1) ZA200301963B (pt)

Families Citing this family (24)

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JP4669189B2 (ja) * 2001-06-18 2011-04-13 株式会社神戸製鋼所 粒状金属鉄の製法
JP2003034813A (ja) * 2001-07-24 2003-02-07 Kobe Steel Ltd 粒状金属鉄とスラグの分離促進方法
JP3679084B2 (ja) * 2002-10-09 2005-08-03 株式会社神戸製鋼所 溶融金属製造用原料の製造方法および溶融金属の製造方法
TWI282818B (en) * 2003-01-16 2007-06-21 Kobe Steel Ltd A rotary hearth furnace and iron production method thereby
MX2007006785A (es) * 2004-12-07 2007-10-08 Nu Iron Technology Llc Metodo y sistema para producir pepitas de hierro metalicas.
US7632330B2 (en) * 2006-03-13 2009-12-15 Michigan Technological University Production of iron using environmentally-benign renewable or recycled reducing agents
US8021460B2 (en) 2006-07-26 2011-09-20 Nu-Iron Technology, Llc System and method for producing metallic iron nodules
EP2690181A1 (en) * 2006-07-26 2014-01-29 Nu-Iron Technology, Inc Method and system for producing metallic iron nuggets
WO2008042997A1 (en) * 2006-10-04 2008-04-10 Nu-Iron Technology, Llc System and method for producing metallic iron
WO2008042996A1 (en) * 2006-10-04 2008-04-10 Nu-Iron Technology, Llc System and method of producing metallic iron
US8097065B2 (en) 2006-10-04 2012-01-17 Nu-Iron Technology, Llc System and method for producing metallic iron
CA2669314C (en) * 2006-11-17 2015-01-06 Nu-Iron Technology, Llc Multiple hearth furnace for reducing iron oxide
US20110017016A1 (en) * 2007-01-12 2011-01-27 Nu-Iron Technology, Llc System and method for cooling and removing iron from a hearth
EP2225401B1 (en) * 2007-12-19 2014-03-26 Nu-Iron Technology, LLC System and method for producing metallic iron
US8518146B2 (en) * 2009-06-29 2013-08-27 Gb Group Holdings Limited Metal reduction processes, metallurgical processes and products and apparatus
US9115413B2 (en) 2010-03-02 2015-08-25 Giulio Grossi Apparatus and methods for producing direct reduced iron
JP2011252226A (ja) * 2010-05-06 2011-12-15 Kobe Steel Ltd 金属鉄の製造方法
JP5503420B2 (ja) * 2010-06-07 2014-05-28 株式会社神戸製鋼所 粒状金属の製造方法
AU2011297158A1 (en) * 2010-08-30 2013-02-14 Kabushiki Kaisha Kobe Seiko Sho Granular metal iron production method
US8287621B2 (en) * 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
JP5790554B2 (ja) * 2012-03-14 2015-10-07 新日鐵住金株式会社 還元鉄の製造方法
US11060792B2 (en) * 2018-03-23 2021-07-13 Air Products And Chemicals, Inc. Oxy-fuel combustion system and method for melting a pelleted charge material
JP7067413B2 (ja) * 2018-10-22 2022-05-16 日本製鉄株式会社 雰囲気炉の耐火物の点検方法及び還元鉄の製造方法
JP7255272B2 (ja) * 2019-03-25 2023-04-11 住友金属鉱山株式会社 ニッケル酸化鉱石の製錬方法、還元炉

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JPS5554340A (en) 1978-10-17 1980-04-21 Kureha Chem Ind Co Ltd Vinyl chloride resin composition
JPH0375721A (ja) 1989-08-18 1991-03-29 Ricoh Co Ltd 等倍結像素子
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JPH0625758A (ja) * 1992-07-03 1994-02-01 Nippon Steel Corp 焼結促進材及びそれを用いた焼結鉱製造方法
US6506231B2 (en) * 1996-03-15 2003-01-14 Kabushiki Kaisha Kobe Seiko Sho Method and apparatus for making metallic iron
SK125398A3 (en) * 1996-03-15 1999-05-07 Kobe Steel Ltd Method and apparatus for making metallic iron
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JP4159634B2 (ja) 1997-10-23 2008-10-01 株式会社神戸製鋼所 金属鉄の製法および装置
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JP4572435B2 (ja) * 1999-12-24 2010-11-04 Ｊｆｅスチール株式会社 鉄含有物からの還元鉄の製造方法
PE20020070A1 (es) * 2000-03-30 2002-02-05 Midrex Internat B V Metodo de producir hierro metalico y dispositivo de alimentacion de materia prima
JP2001288504A (ja) * 2000-03-31 2001-10-19 Midrex Internatl Bv 溶融金属鉄の製造方法
TW562860B (en) * 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
JP4757982B2 (ja) * 2000-06-28 2011-08-24 株式会社神戸製鋼所 粒状金属鉄の歩留まり向上方法
US20020053307A1 (en) * 2000-10-31 2002-05-09 Natsuo Ishiwata Method for discharging reduced product from a moveable-hearth furnace and a discharging device
US6648942B2 (en) * 2001-01-26 2003-11-18 Midrex International B.V. Rotterdam, Zurich Branch Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus
US6749664B1 (en) * 2001-01-26 2004-06-15 Midrex International, B.V., Rotterdam, Zurich Branch Furnace hearth for improved molten iron production and method of operation
JP4691827B2 (ja) 2001-05-15 2011-06-01 株式会社神戸製鋼所 粒状金属鉄
JP3679084B2 (ja) * 2002-10-09 2005-08-03 株式会社神戸製鋼所 溶融金属製造用原料の製造方法および溶融金属の製造方法
TWI282818B (en) * 2003-01-16 2007-06-21 Kobe Steel Ltd A rotary hearth furnace and iron production method thereby
JP4167101B2 (ja) * 2003-03-20 2008-10-15 株式会社神戸製鋼所 粒状金属鉄の製法
JP4167113B2 (ja) 2003-04-17 2008-10-15 株式会社神戸製鋼所 還元鉄の製造方法及び装置

Also Published As

Publication number Publication date
RU2004103981A (ru) 2005-05-10
US20090031859A1 (en) 2009-02-05
CA2448361A1 (en) 2003-01-30
JP4266284B2 (ja) 2009-05-20
MXPA04000246A (es) 2004-05-04
WO2003008652A1 (en) 2003-01-30
PL373814A1 (en) 2005-09-19
JP2003049213A (ja) 2003-02-21
PL198614B1 (pl) 2008-07-31
CN100478454C (zh) 2009-04-15
AU2002311296B2 (en) 2007-11-22
KR20040013145A (ko) 2004-02-11
EP1405925A4 (en) 2005-04-13
US7674316B2 (en) 2010-03-09
KR100660657B1 (ko) 2006-12-21
CA2448361C (en) 2011-11-22
EP1405925A1 (en) 2004-04-07
TW533238B (en) 2003-05-21
ZA200301963B (en) 2004-02-03
AU2002311296B9 (en) 2008-05-15
RU2274660C2 (ru) 2006-04-20
CN1516743A (zh) 2004-07-28
US20040173054A1 (en) 2004-09-09
UA76991C2 (uk) 2006-10-16

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O E 13 DA LPI

B12F Other appeals [chapter 12.6 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]