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GB976934A - Improvements in or relating to method and apparatus for the direct reduction of iron ore into pulverulent iron by means of a gaseous reducing agent - Google Patents

Improvements in or relating to method and apparatus for the direct reduction of iron ore into pulverulent iron by means of a gaseous reducing agent

Info

Publication number
GB976934A
GB976934A GB1227261A GB1227261A GB976934A GB 976934 A GB976934 A GB 976934A GB 1227261 A GB1227261 A GB 1227261A GB 1227261 A GB1227261 A GB 1227261A GB 976934 A GB976934 A GB 976934A
Authority
GB
United Kingdom
Prior art keywords
iron
feo
reduced
bed
burned
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
GB1227261A
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.)
Renault SA
Regie Nationale des Usines Renault
Original Assignee
Renault SA
Regie Nationale des Usines Renault
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 Renault SA, Regie Nationale des Usines Renault filed Critical Renault SA
Publication of GB976934A publication Critical patent/GB976934A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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

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

Abstract

<PICT:0976934/C6-C7/1> A method for the direct reduction of powdered iron ore comprises a first stage in which the heated ore is reduced by gases in fluidized beds in cascade to FeO at a temperature of 900-1050 DEG C. and then cooled to 700 DEG C. and a second stage in which the FeO is reduced to iron by hydrogen in fluidized beds at 700 DEG C. As shown, the iron ore is reduced to FeO by gases from the incomplete combustion of hydrocarbons in a fluidized bed formed in cascades 3-6, a worm conveyer 7 moving the FeO from the lowermost bed 6 to a bed 18 where it is cooled to 700 DEG C. The cooled oxide is then supplied to a cascade 10-13 of fluidized beds and reduced to iron by hydrogen flowing in a controlled recycling circuit. The waste gas from bed 3 is divided into three portions, the first being used to cool the FeO to 700 DEG C., and then burned in a burner 18 to produce reducing gas, the second is reheated before being burned in the burner 18, and the third is burned to reheat the second portion, the gases being circulated by a fan 20.
GB1227261A 1960-04-13 1961-04-05 Improvements in or relating to method and apparatus for the direct reduction of iron ore into pulverulent iron by means of a gaseous reducing agent Expired GB976934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR824295A FR1268478A (en) 1960-04-13 1960-04-13 Process for the direct reduction of iron ore into powdered iron by gaseous reducing agents and equipment for implementing this process

Publications (1)

Publication Number Publication Date
GB976934A true GB976934A (en) 1964-12-02

Family

ID=8729274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227261A Expired GB976934A (en) 1960-04-13 1961-04-05 Improvements in or relating to method and apparatus for the direct reduction of iron ore into pulverulent iron by means of a gaseous reducing agent

Country Status (2)

Country Link
FR (1) FR1268478A (en)
GB (1) GB976934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130118306A1 (en) * 2010-06-04 2013-05-16 Outotec Oyj Process and plant for producing hot metal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614342C3 (en) * 1976-03-31 1985-12-12 Mannesmann AG, 4000 Düsseldorf Process for the production of iron powder with a fibrous structure
US5064467A (en) * 1987-11-02 1991-11-12 C.V.G. Siderurgica Del Orinoco, C.A. Method and apparatus for the direct reduction of iron
US5078788A (en) * 1989-12-22 1992-01-07 C.V.G. Siderurgica Del Orinoco, C.A. Method for the direct reduction of iron
US5069716A (en) * 1989-12-22 1991-12-03 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of liquid steel from iron containing metal oxides
DE19953298C2 (en) * 1999-11-05 2001-12-06 Vogels Hanns Arnt Methods and devices for increasing performance and saving fuel in the production of iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130118306A1 (en) * 2010-06-04 2013-05-16 Outotec Oyj Process and plant for producing hot metal
US8926728B2 (en) * 2010-06-04 2015-01-06 Outotec Oyj Process and plant for producing hot metal

Also Published As

Publication number Publication date
FR1268478A (en) 1961-08-04

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