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GB1196184A - Reduction of Iron Oxide Ores - Google Patents

Reduction of Iron Oxide Ores

Info

Publication number
GB1196184A
GB1196184A GB582568A GB582568A GB1196184A GB 1196184 A GB1196184 A GB 1196184A GB 582568 A GB582568 A GB 582568A GB 582568 A GB582568 A GB 582568A GB 1196184 A GB1196184 A GB 1196184A
Authority
GB
United Kingdom
Prior art keywords
pellets
hopper
carbonaceous material
heated
shaft
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
GB582568A
Inventor
Alfred Gordon Evans Robiette
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.)
J C I METAL HOLDINGS PROPRIETA
Original Assignee
J C I METAL HOLDINGS PROPRIETA
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 J C I METAL HOLDINGS PROPRIETA filed Critical J C I METAL HOLDINGS PROPRIETA
Priority to GB582568A priority Critical patent/GB1196184A/en
Publication of GB1196184A publication Critical patent/GB1196184A/en
Expired legal-status Critical Current

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
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft 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
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous 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
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or 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 And Refinement Of Metals (AREA)

Abstract

1,196,184. Extracting iron. J. C. I. METAL HOLDINGS PROPRIETARY Ltd. Feb. 4, 1969 [Feb. 6, 1968], No. 5825/68. Heading C7D. [Also in Division F4] Pellets of finely-divided iron ore and carbonaceous reducing agent have mixed with them granular carbonaceous material of smaller particle size than the pellets and are then heated in a shaft kiln so that the pellets are at least 90% reduced; at the bottom of the shaft the mixture passes over a discharge edge to a screen out of contact with the air, where the carbonaceous material is separated from the reduced pellets, the latter passing to a furnace containing a bath of steel where they are melted while the former is cooled to below combustion temperature and recycled. By removing carbon from the mixture in this way steel may be directly produced in the melting furnace without the necessity of a conversion operation. As illustrated, moist pellets from hopper 23 are dried and pre-heated by hot gases while travelling on conveyer 23 to hopper 14, where they are mixed with granular carbonaceous material which may have been recycled through line 26 and possibly with fluxes. Hopper 14 discharges into shaft 10 where the charge is heated by hot gases from burner 12, before being discharged by reciprocating plate 15 to screen 19, the hot pellets passing to insulated hopper 30 and the carbonaceous material to sprays 32 and magnetic separator 33. Air may be introduced at 18 to burn a part of the carbon monoxide and hydrogen in the ascending gases.
GB582568A 1968-02-06 1968-02-06 Reduction of Iron Oxide Ores Expired GB1196184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB582568A GB1196184A (en) 1968-02-06 1968-02-06 Reduction of Iron Oxide Ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB582568A GB1196184A (en) 1968-02-06 1968-02-06 Reduction of Iron Oxide Ores

Publications (1)

Publication Number Publication Date
GB1196184A true GB1196184A (en) 1970-06-24

Family

ID=9803309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB582568A Expired GB1196184A (en) 1968-02-06 1968-02-06 Reduction of Iron Oxide Ores

Country Status (1)

Country Link
GB (1) GB1196184A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989194A1 (en) * 1998-09-25 2000-03-29 Mitsubishi Heavy Industries, Ltd. Method of producing reduced iron and production facilities therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989194A1 (en) * 1998-09-25 2000-03-29 Mitsubishi Heavy Industries, Ltd. Method of producing reduced iron and production facilities therefor
US6312501B1 (en) 1998-09-25 2001-11-06 Mitsubishi Heavy Industries, Ltd. Method of producing reduced iron and production facilities therefor
US6840981B2 (en) 1998-09-25 2005-01-11 Mitsubishi Heavy Industries, Ltd. Method of producing reduced iron and production facilities therefor

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees