BR9814479A - "método para refino de ferro fundido e método de redução de fundidos para produção de ferro fundido" - Google Patents

"método para refino de ferro fundido e método de redução de fundidos para produção de ferro fundido"

Info

Publication number
BR9814479A
BR9814479A BR9814479-0A BR9814479A BR9814479A BR 9814479 A BR9814479 A BR 9814479A BR 9814479 A BR9814479 A BR 9814479A BR 9814479 A BR9814479 A BR 9814479A
Authority
BR
Brazil
Prior art keywords
cast iron
refining
production
reducing
iron
Prior art date
Application number
BR9814479-0A
Other languages
English (en)
Inventor
Masahiro Kawakami
Terutoshi Sawada
Takeshi Sekiguchi
Masayuki Watanabe
Katsuhiro Iwasaki
Shinichi Isokaki
Junichi Fukumi
Original Assignee
Nippon Kokan Kk
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
Priority claimed from JP36843097A external-priority patent/JPH11193406A/ja
Priority claimed from JP36842997A external-priority patent/JPH11193410A/ja
Priority claimed from JP36843197A external-priority patent/JPH11193411A/ja
Priority claimed from JP10019997A external-priority patent/JPH11217614A/ja
Priority claimed from JP11971498A external-priority patent/JPH11310811A/ja
Priority claimed from JP11971598A external-priority patent/JPH11310812A/ja
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Publication of BR9814479A publication Critical patent/BR9814479A/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
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/50—Tilting mechanisms for converters
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • 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
    • C21C7/0025—Adding carbon material
    • 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
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C7/068—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • 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
    • 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
    • Y02P10/25—Process efficiency

Abstract

Patente de Invenção:<B>"MéTODO PARA REFINO DE FERRO FUNDIDO E MéTODO DE REDUçãO DE FUNDIDOS PARA PRODUçãO DE FERRO FUNDIDO"<D>. O método de refino de ferro fundido de baixo carbono compreende os passos de fornecimento de agente de dessulfuração ao ferro fundido e agitando-o de forma a executar a dessulfuração, aquecendo ou carbonizando o ferro fundido antes ou após o passo de dessulfuração, e descarbonizando-se o metal dessulfurado no forno de tratamento de descarbonização. O ferro fundido é produzido pelo carregamento de minérios reduzidos até serem metalizados no forno de redução de fundidos. Como materiais carbonáceos, são usados pó de coque, óleo de coque ou refugo plástico. Como fonte de ferro, são usados os minérios sinterizados de pequeno tamanho de grão.
BR9814479-0A 1997-12-26 1998-12-24 "método para refino de ferro fundido e método de redução de fundidos para produção de ferro fundido" BR9814479A (pt)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP36843097A JPH11193406A (ja) 1997-12-26 1997-12-26 製銑方法
JP36842997A JPH11193410A (ja) 1997-12-26 1997-12-26 溶銑精錬法
JP36843197A JPH11193411A (ja) 1997-12-26 1997-12-26 低炭素溶銑の精錬方法
JP10019997A JPH11217614A (ja) 1998-01-30 1998-01-30 金属の溶融還元製錬方法
JP11971498A JPH11310811A (ja) 1998-04-28 1998-04-28 オイルコークスを用いた環境調和型の溶融還元製錬法
JP11971598A JPH11310812A (ja) 1998-04-28 1998-04-28 廃プラスチックを用いた環境調和型の溶融還元製錬法
PCT/JP1998/005852 WO1999034022A1 (fr) 1997-12-26 1998-12-24 Procede de raffinage de fer fondu et procede de fusion reductrice permettant de produire ce fer fondu

Publications (1)

Publication Number Publication Date
BR9814479A true BR9814479A (pt) 2000-10-10

Family

ID=27548900

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9814479-0A BR9814479A (pt) 1997-12-26 1998-12-24 "método para refino de ferro fundido e método de redução de fundidos para produção de ferro fundido"

Country Status (8)

Country Link
US (1) US6837916B2 (pt)
KR (1) KR100370920B1 (pt)
CN (1) CN1283222A (pt)
AU (1) AU755341B2 (pt)
BR (1) BR9814479A (pt)
CA (1) CA2315031A1 (pt)
ID (1) ID26484A (pt)
WO (1) WO1999034022A1 (pt)

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MY133537A (en) 2002-01-24 2007-11-30 Kobe Steel Ltd Method for making molten iron
AU2005279678B2 (en) * 2004-09-03 2011-06-23 Newsouth Innovations Pty Limited Production of ferro-alloys
MX2007002540A (es) * 2004-09-03 2007-07-05 Newsouth Innovations Pty Ltd Produccion de ferroaleaciones.
MX2007006786A (es) * 2004-12-07 2008-02-11 Nu Iron Technology Llc Metodo y sistema para producir trozos de hierro metalicos.
CN101688258B (zh) * 2007-04-04 2015-09-09 塔塔钢铁荷兰科技有限责任公司 制备在金属制造方法中使用的还原剂的方法和设备、使用所述设备的金属制造方法和金属制造装置
CN101896581B (zh) 2007-12-12 2014-08-27 奥图泰有限公司 生产焦炭和燃料气的方法和装置
AU2009279383A1 (en) * 2008-08-07 2010-02-11 Newsouth Innovations Pty Limited Recarburisation method
PL2329054T3 (pl) * 2008-08-29 2020-06-01 Newsouth Innovations Pty Limited Wytwarzanie stopów żelaza
US8587138B2 (en) * 2009-06-04 2013-11-19 Kevin Statler Systems for the recovery of gas and/or heat from the melting of metals and/or the smelting of ores and conversion thereof to electricity
BRPI1015360B1 (pt) * 2009-06-30 2021-10-26 Jfe Steel Corporation Método para dessulfuração do metal quente
CN102031326B (zh) * 2010-12-20 2012-05-02 张成顺 铁精矿粉直接熔融还原炼铁工艺
US8287621B2 (en) 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
CN110064246B (zh) * 2019-05-09 2021-07-20 唐山伟德船用设备有限公司 一种船舶废气洗涤用脱硫渣处理装置
CN110317610A (zh) * 2019-07-30 2019-10-11 江苏极易新材料有限公司 一种具有低挥发份圆球形抗氧化剂颗粒的制备方法及其制造系统
CN110672458B (zh) * 2019-09-04 2022-05-24 攀钢集团攀枝花钢铁研究院有限公司 一种钒钛磁铁精矿造块经济性快速评价方法
CN110396593B (zh) * 2019-09-05 2020-10-23 东北大学 一种高磷铁精矿高温水蒸气焙烧-酸浸脱磷的方法
CN111304397B (zh) * 2020-03-31 2022-02-18 鞍钢股份有限公司 一种减少kr脱硫过程铁水温降方法
CN111961785B (zh) * 2020-08-27 2021-12-24 山东墨龙石油机械股份有限公司 一种铁浴熔融还原法生产超高纯生铁的方法
CN113981248B (zh) * 2021-10-09 2022-09-13 济南恒誉环保科技股份有限公司 一种利用固废热解产物处理钛铁矿矿石的装置

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Also Published As

Publication number Publication date
CA2315031A1 (en) 1999-07-08
AU755341B2 (en) 2002-12-12
US20020112567A1 (en) 2002-08-22
US6837916B2 (en) 2005-01-04
KR20010033077A (ko) 2001-04-25
AU1687799A (en) 1999-07-19
CN1283222A (zh) 2001-02-07
ID26484A (id) 2001-01-11
WO1999034022A1 (fr) 1999-07-08
KR100370920B1 (ko) 2003-02-05

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Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B25D Requested change of name of applicant approved
B25A Requested transfer of rights approved

Free format text: JFE STEEL CORPORATION (JP)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted
B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 8A, 9A,10A E 11A ANUIDADES

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: EXTINGUE-SE A PATENTE EM VIRTUDE DO DISPOSTO NO ART. 78, INCISO IV, DA LPI 9.279, REFERENTE AO NAO CUMPRIMENTO DO DESPACHO 24.3 NA RPI 2048 DE 06/04/2010 E COMPROVAR RECOLHIMENTO DA 12A, 13A E 14A ANUIDADES.