BR9803343A - Processo e aparelho para produzir ferro diretamente reduzido - Google Patents

Processo e aparelho para produzir ferro diretamente reduzido

Info

Publication number
BR9803343A
BR9803343A BR9803343-3A BR9803343A BR9803343A BR 9803343 A BR9803343 A BR 9803343A BR 9803343 A BR9803343 A BR 9803343A BR 9803343 A BR9803343 A BR 9803343A
Authority
BR
Brazil
Prior art keywords
reduced iron
directly reduced
reduction
zone
producing directly
Prior art date
Application number
BR9803343-3A
Other languages
English (en)
Inventor
Balu Sarma
Maynard Guotsuen Ding
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BR9803343A publication Critical patent/BR9803343A/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
    • 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)

Abstract

"PROCESSO E APARELHO PARA PRODUZIR FERRO DIRETAMENTE REDUZIDO". Um sistema para produzir ferro diretamente reduzido no qual material de óxido de ferro e material carbonato são passados sucessivamente através de uma zona de oxidação e de uma zona de redução de um forno, cada zona afogueada por combustão de oxigênio-combustível, permitindo uma redução na quantidade de combustível necessária para processar o material gerando simultaneamente monóxido de carbono suficiente para efetuar a redução e garantir que pouco ou nenhum monóxido de carbono seja emitido do forno.
BR9803343-3A 1997-06-16 1998-06-15 Processo e aparelho para produzir ferro diretamente reduzido BR9803343A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/876,752 US5951740A (en) 1997-06-16 1997-06-16 Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide

Publications (1)

Publication Number Publication Date
BR9803343A true BR9803343A (pt) 1999-11-03

Family

ID=25368492

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9803343-3A BR9803343A (pt) 1997-06-16 1998-06-15 Processo e aparelho para produzir ferro diretamente reduzido

Country Status (12)

Country Link
US (2) US5951740A (pt)
EP (1) EP0885972B1 (pt)
KR (1) KR100359689B1 (pt)
CN (1) CN1075560C (pt)
AU (1) AU736984B2 (pt)
BR (1) BR9803343A (pt)
CA (1) CA2240706C (pt)
DE (1) DE69807590T2 (pt)
ES (1) ES2178079T3 (pt)
ID (1) ID22081A (pt)
PL (1) PL194819B1 (pt)
RU (1) RU2220209C2 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6120577A (en) * 1998-03-25 2000-09-19 Ltv Steel Company, Inc. Treatment of steel mill waste metal oxides
EP1080235B1 (fr) * 1998-04-28 2002-07-24 Sidmar N.V. Procede de reduction d'oxydes metalliques et dispositif pour la mise en oeuvre du procede
CN1219891C (zh) * 1999-05-06 2005-09-21 株式会社神户制钢所 直接还原法及回转炉床炉
US6368104B1 (en) * 1999-09-24 2002-04-09 The Boc Group, Inc. Rotary hearth furnace
US6409964B1 (en) 1999-11-01 2002-06-25 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Natural Resources Cold bonded iron particulate pellets
JP3866492B2 (ja) * 2000-06-29 2007-01-10 株式会社神戸製鋼所 回転炉床式還元炉の操業方法
JP4490640B2 (ja) * 2003-02-26 2010-06-30 株式会社神戸製鋼所 還元金属の製造方法
JP5086657B2 (ja) * 2007-02-08 2012-11-28 新日鉄エンジニアリング株式会社 回転炉床式還元炉及びその操業方法
WO2011041431A1 (en) * 2009-09-29 2011-04-07 Nu-Iron Technology, Llc System and method for producing metallic iron
US20120279353A1 (en) * 2009-09-29 2012-11-08 Nu-Iron Technology, Llc System and method for producing metallic iron
JP5957348B2 (ja) * 2012-09-21 2016-07-27 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 部分還元鉄製造装置
CN105129478B (zh) * 2015-09-16 2017-06-06 昆山金箭机械设备有限公司 印刷机
CN105936951B (zh) * 2016-06-23 2018-07-13 江苏省冶金设计院有限公司 处理高磷铁矿的系统和方法
CN106350630A (zh) * 2016-11-22 2017-01-25 江苏省冶金设计院有限公司 一种燃气熔分炉处理硫铁矿的系统和方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443931A (en) * 1965-09-10 1969-05-13 Midland Ross Corp Process for making metallized pellets from iron oxide containing material
DE2045696A1 (en) * 1970-09-16 1972-03-23 Budin, Franz Josef, Prof. Dipl.-Ing., Wien Reduction of iron ores - with preliminary roasting under oxidising conditions
US4469590A (en) * 1983-06-17 1984-09-04 Exxon Research And Engineering Co. Process for the hydrogenation of aromatic hydrocarbons
US4622905A (en) * 1985-03-04 1986-11-18 International Metals Reclamation Co., Inc. Furnacing
US5186741A (en) * 1991-04-12 1993-02-16 Zia Patent Company Direct reduction process in a rotary hearth furnace
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
CN1045313C (zh) * 1995-03-13 1999-09-29 北京科技大学 生产海绵铁的工艺与设备
CN1134983A (zh) * 1995-05-04 1996-11-06 北京科技大学 一种海绵铁或金属化球团生产工艺
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
US5601631A (en) * 1995-08-25 1997-02-11 Maumee Research & Engineering Inc. Process for treating metal oxide fines
CN1042346C (zh) * 1995-11-10 1999-03-03 冶金工业部鞍山热能研究院 热压含碳矿球快速直接还原或煅烧工艺

Also Published As

Publication number Publication date
CN1211624A (zh) 1999-03-24
AU736984B2 (en) 2001-08-09
ES2178079T3 (es) 2002-12-16
DE69807590D1 (de) 2002-10-10
RU2220209C2 (ru) 2003-12-27
DE69807590T2 (de) 2003-04-17
KR19990006972A (ko) 1999-01-25
EP0885972B1 (en) 2002-09-04
CA2240706C (en) 2001-08-07
AU7188498A (en) 1998-12-17
US5951740A (en) 1999-09-14
US6117387A (en) 2000-09-12
PL326823A1 (en) 1998-12-21
EP0885972A1 (en) 1998-12-23
KR100359689B1 (ko) 2002-12-18
ID22081A (id) 1999-09-02
CN1075560C (zh) 2001-11-28
CA2240706A1 (en) 1998-12-16
PL194819B1 (pl) 2007-07-31

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 15.06.2018