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FR2049293A5 - Reduction of iron ores - Google Patents

Reduction of iron ores

Info

Publication number
FR2049293A5
FR2049293A5 FR6918613A FR6918613A FR2049293A5 FR 2049293 A5 FR2049293 A5 FR 2049293A5 FR 6918613 A FR6918613 A FR 6918613A FR 6918613 A FR6918613 A FR 6918613A FR 2049293 A5 FR2049293 A5 FR 2049293A5
Authority
FR
France
Prior art keywords
reduction
iron ores
molten iron
mixture
iron
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR6918613A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Armco Inc
Original Assignee
Armco 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 Armco Inc filed Critical Armco Inc
Priority to FR6918613A priority Critical patent/FR2049293A5/en
Application granted granted Critical
Publication of FR2049293A5 publication Critical patent/FR2049293A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • 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
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • 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

Landscapes

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

Abstract

Reduction is performed in a blast furnace and the molten iron is obtained using a gaseous mixture of carbon monoxide and hydrogen, which results in the formation of carbon dioxide and water. Part of the cooled and purified waste gas is enriched with a fluid hydrocarbon-containing fuel and the mixture is heated and fed to reduction zone in the furnace shaft at a temp. of 760-1093 degrees C to complete the reduction of the iron oxides to molten iron.
FR6918613A 1969-06-05 1969-06-05 Reduction of iron ores Expired FR2049293A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6918613A FR2049293A5 (en) 1969-06-05 1969-06-05 Reduction of iron ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6918613A FR2049293A5 (en) 1969-06-05 1969-06-05 Reduction of iron ores

Publications (1)

Publication Number Publication Date
FR2049293A5 true FR2049293A5 (en) 1971-03-26

Family

ID=9035228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6918613A Expired FR2049293A5 (en) 1969-06-05 1969-06-05 Reduction of iron ores

Country Status (1)

Country Link
FR (1) FR2049293A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197069A1 (en) * 1972-08-22 1974-03-22 Centre Rech Metallurgique
WO1998048057A1 (en) * 1997-04-21 1998-10-29 Manfred Ottow Method and device for extracting iron by direct reduction
RU2166546C1 (en) * 1998-10-28 2001-05-10 Праксайр Текнолоджи, Инк. Method of combination of blast furnace and direct reduction reactor with use of cryogenic rectification
WO2010106387A1 (en) * 2009-03-17 2010-09-23 Arcelormittal Investigacion Y Desarrollo S.L. Method for recirculating blast furnace gas, and associated device
WO2014006511A3 (en) * 2012-07-03 2014-04-17 Hyl Technologies, S.A De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197069A1 (en) * 1972-08-22 1974-03-22 Centre Rech Metallurgique
WO1998048057A1 (en) * 1997-04-21 1998-10-29 Manfred Ottow Method and device for extracting iron by direct reduction
US6423116B1 (en) 1997-04-21 2002-07-23 Manfred Ottow Method for extracting iron by direct reduction
AU762057B2 (en) * 1997-04-21 2003-06-19 Manfred Ottow Method and device for extracting iron by direct reduction
RU2166546C1 (en) * 1998-10-28 2001-05-10 Праксайр Текнолоджи, Инк. Method of combination of blast furnace and direct reduction reactor with use of cryogenic rectification
JP2012520939A (en) * 2009-03-17 2012-09-10 アルセロルミタル・インベステイガシオン・イ・デサロジヨ・エセ・エレ Method for recirculating blast furnace gas and related equipment
WO2010106387A1 (en) * 2009-03-17 2010-09-23 Arcelormittal Investigacion Y Desarrollo S.L. Method for recirculating blast furnace gas, and associated device
KR101286924B1 (en) * 2009-03-17 2013-07-16 아르셀러미탈 인베스티가시온 와이 데살롤로 에스엘 Method for recirculating blast furnace gas, and associated device
RU2489492C2 (en) * 2009-03-17 2013-08-10 Арселормитталь Инвестигасьон И Десарролло С.Л. Blast-furnace gas recirculation method, and device for its implementation
AU2009342187B2 (en) * 2009-03-17 2014-08-21 Arcelormittal Investigacion Y Desarrollo S.L. Method for recirculating blast furnace gas, and associated device
US8992664B2 (en) 2009-03-17 2015-03-31 ArcelorMittal Investigación y Desarrollo, S.L. Blast furnace top gas recycling process and corresponding recycling equipment
WO2014006511A3 (en) * 2012-07-03 2014-04-17 Hyl Technologies, S.A De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
US9605326B2 (en) 2012-07-03 2017-03-28 Hyl Technologies, S.A. De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater

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Legal Events

Date Code Title Description
ST Notification of lapse