BR9917437A - Processo e forno de redução de óxidos metálicos - Google Patents

Processo e forno de redução de óxidos metálicos

Info

Publication number
BR9917437A
BR9917437A BR9917437-5A BR9917437A BR9917437A BR 9917437 A BR9917437 A BR 9917437A BR 9917437 A BR9917437 A BR 9917437A BR 9917437 A BR9917437 A BR 9917437A
Authority
BR
Brazil
Prior art keywords
reducer
metal oxides
fact
metal oxide
oxide reduction
Prior art date
Application number
BR9917437-5A
Other languages
English (en)
Inventor
Guido Monteyne
Original Assignee
Sidmar Nv
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 Sidmar Nv filed Critical Sidmar Nv
Publication of BR9917437A publication Critical patent/BR9917437A/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
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary 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
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in 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
    • 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
    • Y02P10/20—Recycling

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)
  • Tunnel Furnaces (AREA)

Abstract

"PROCESSO E FORNO DE REDUçãO DE óXIDOS METáLICOS". A presente invenção diz respeito a um processo de redução de óxidos metálicos num forno com soleira giratória em' forma de coroa, no qual um redutor carbonoso e óxidos metálicos são depositados numa faixa sobre uma parte da dita soleira giratória e são em seguida transportados num movimento substancialmente em forma helicoidal em direção a um dispositivo de remoção. Este processo é caracterizado pela fato que uma parte do redutor e pré-aquecida e misturada junto com os óxidos metálicos pré-aquecidos antes e/ou depois do depósito numa mistura sobre a soleira giratória, pelo fato que uma segunda parte do redutor é depositada sobre a mistura, e pelo fato que os componentes voláteis do redutor carbonoso e o monóxido de carbono são utilizados para reduzir os óxidos metálicos.
BR9917437-5A 1999-07-28 1999-07-28 Processo e forno de redução de óxidos metálicos BR9917437A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1999/005438 WO2001009394A1 (fr) 1999-07-28 1999-07-28 Procede de reduction d'oxydes metalliques et dispositif pour la mise en oeuvre du procede

Publications (1)

Publication Number Publication Date
BR9917437A true BR9917437A (pt) 2002-06-18

Family

ID=8167387

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9917437-5A BR9917437A (pt) 1999-07-28 1999-07-28 Processo e forno de redução de óxidos metálicos

Country Status (9)

Country Link
EP (1) EP1204768A1 (pt)
JP (1) JP2003505602A (pt)
KR (1) KR20020019957A (pt)
CN (1) CN1361832A (pt)
AU (1) AU5289499A (pt)
BR (1) BR9917437A (pt)
CA (1) CA2379267A1 (pt)
MX (1) MXPA02000930A (pt)
WO (1) WO2001009394A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8470068B2 (en) 2004-12-07 2013-06-25 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
EP2690181A1 (en) * 2006-07-26 2014-01-29 Nu-Iron Technology, Inc Method and system for producing metallic iron nuggets
US8021460B2 (en) 2006-07-26 2011-09-20 Nu-Iron Technology, Llc System and method for producing metallic iron nodules
CA2661419A1 (en) 2008-04-03 2009-10-03 Nu-Iron Technology, Llc System and method for producing metallic iron
US8287621B2 (en) 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
KR101257739B1 (ko) * 2011-06-29 2013-04-23 현대제철 주식회사 전기로에서의 제강 방법
CN102767944A (zh) * 2012-06-26 2012-11-07 长兴鼎力窑炉设备厂 一种混合式氢气还原炉及其使用方法
JP5320517B1 (ja) * 2013-04-08 2013-10-23 新日鉄住金エンジニアリング株式会社 燃焼装置及びその運転方法、並びに回転炉床式加熱炉
JP2017083114A (ja) * 2015-10-30 2017-05-18 株式会社神戸製鋼所 移動炉床式還元炉および還元鉄の製造方法
KR101690033B1 (ko) 2016-02-05 2016-12-27 주식회사 휴텍엔지니어링 자동 마찰 용접기

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR556633A (fr) * 1922-09-27 1923-07-24 Procédé et appareils pour extraire les métaux de leurs minerais
LU60981A1 (pt) * 1970-05-26 1971-06-24
US3770417A (en) * 1971-02-23 1973-11-06 Salem Corp Simultaneous production of metallized ores and coke
US5730775A (en) * 1994-12-16 1998-03-24 Midrex International B.V. Rotterdam, Zurich Branch Method for rapid reduction of iron oxide in a rotary hearth furnace
US5567224A (en) * 1995-06-06 1996-10-22 Armco Inc. Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame
DE19543074C2 (de) * 1995-11-13 1999-07-15 Mannesmann Ag Direktreduktionsverfahren und Einrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
KR20020019957A (ko) 2002-03-13
MXPA02000930A (es) 2002-07-30
CN1361832A (zh) 2002-07-31
WO2001009394A1 (fr) 2001-02-08
EP1204768A1 (fr) 2002-05-15
CA2379267A1 (fr) 2001-02-08
AU5289499A (en) 2001-02-19
JP2003505602A (ja) 2003-02-12

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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]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements