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JPS57198205A - Production of molten metal from powder and granular ore - Google Patents

Production of molten metal from powder and granular ore

Info

Publication number
JPS57198205A
JPS57198205A JP56063294A JP6329481A JPS57198205A JP S57198205 A JPS57198205 A JP S57198205A JP 56063294 A JP56063294 A JP 56063294A JP 6329481 A JP6329481 A JP 6329481A JP S57198205 A JPS57198205 A JP S57198205A
Authority
JP
Japan
Prior art keywords
furnace
ore
molten metal
prereduced
metallic oxides
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.)
Granted
Application number
JP56063294A
Other languages
Japanese (ja)
Other versions
JPS5918452B2 (en
Inventor
Hisao Hamada
Nobuo Tsuchitani
Toshihiro Inatani
Eiji Katayama
Hisamitsu Koitabashi
Kyoji Okabe
Mitsuo Kadoto
Shiko Takada
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56063294A priority Critical patent/JPS5918452B2/en
Priority to AU82854/82A priority patent/AU534503B2/en
Priority to ZA822684A priority patent/ZA822684B/en
Priority to DE8282302056T priority patent/DE3273996D1/en
Priority to EP82302056A priority patent/EP0063924B2/en
Priority to PH27194A priority patent/PH21317A/en
Publication of JPS57198205A publication Critical patent/JPS57198205A/en
Publication of JPS5918452B2 publication Critical patent/JPS5918452B2/en
Priority to PH35514A priority patent/PH26062A/en
Priority to US07/127,600 priority patent/US4874427A/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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or 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
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • 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
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • 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)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To produce molten metal at a low cost without using costly electric power and hard coking coal by using a reducing gas generated during melt reduction for prereduction of powder ore contg. metallic oxides. CONSTITUTION:Granular and small granular metallic oxides are supplied into a prereducing furnace 2. The high temp. generated gas generated in a vertical melt reduction furnace 3 is introduced into a prereduction furnace 2, where the metallic oxides are dried, heated and prereduced. The prereduced ore is blown through tuyeres 8, 8' together with preheating air into the furnace 3. Further, a flux and a reducing agent are charged therein. While the prereduced ore blown into the furnace is heated and melted in the high temp. region formed in the furnace 3 and drops in the lower part of the furnace 3, it is reduced and molten metal and molten slag are formed, whereby refining is effected. In this way, the prereduced ore is reduced satisfactorily.
JP56063294A 1981-04-28 1981-04-28 Method for producing molten metal from powdered ore Expired JPS5918452B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP56063294A JPS5918452B2 (en) 1981-04-28 1981-04-28 Method for producing molten metal from powdered ore
AU82854/82A AU534503B2 (en) 1981-04-28 1982-04-20 Reduction of powdery oxide ores to metal
ZA822684A ZA822684B (en) 1981-04-28 1982-04-20 Methods for melting and refining a powdery ore containing metal oxides and apparatuses for melt-refining said ore
DE8282302056T DE3273996D1 (en) 1981-04-28 1982-04-22 Methods for melting and refining a powdery ore containing metal oxides and apparatuses for melt-refining said ore
EP82302056A EP0063924B2 (en) 1981-04-28 1982-04-22 Methods for melting and refining a powdery ore containing metal oxides and apparatuses for melt-refining said ore
PH27194A PH21317A (en) 1981-04-28 1982-04-26 Methods for melting and refining a powdery ore containing metal oxides and apparatuses for melt-refining said ore
PH35514A PH26062A (en) 1981-04-28 1987-06-07 Method for melting and refining a powdery ore containing metal oxides and apparatus for melting said ore
US07/127,600 US4874427A (en) 1981-04-28 1987-12-02 Methods for melting and refining a powdery ore containing metal oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56063294A JPS5918452B2 (en) 1981-04-28 1981-04-28 Method for producing molten metal from powdered ore

Publications (2)

Publication Number Publication Date
JPS57198205A true JPS57198205A (en) 1982-12-04
JPS5918452B2 JPS5918452B2 (en) 1984-04-27

Family

ID=13225150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56063294A Expired JPS5918452B2 (en) 1981-04-28 1981-04-28 Method for producing molten metal from powdered ore

Country Status (3)

Country Link
JP (1) JPS5918452B2 (en)
AU (1) AU534503B2 (en)
ZA (1) ZA822684B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110712A (en) * 1982-12-16 1984-06-26 Kawasaki Steel Corp Reduction of powdery granular ore
JPS59113110A (en) * 1982-12-21 1984-06-29 Kawasaki Steel Corp Transferring method of preliminarily reduced ore in vertical type furnace melt reduction method
JPS59162213A (en) * 1983-03-04 1984-09-13 Kawasaki Steel Corp Operating furnace of melt reduction furnace
JPS59179726A (en) * 1983-03-31 1984-10-12 Kawasaki Steel Corp Preliminary reducing method of hardly reducible ore
JPS60162718A (en) * 1984-02-06 1985-08-24 Nisshin Steel Co Ltd Production of chromium-containing molten iron by vertical furnace
JPS6118633A (en) * 1984-07-02 1986-01-27 Kawasaki Steel Corp Apparatus for transferring and supplying constant quantity of powder
JPS6256537A (en) * 1985-09-04 1987-03-12 Kawasaki Steel Corp Manufacture of molten metal from powdery ore containing metal oxide

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110712A (en) * 1982-12-16 1984-06-26 Kawasaki Steel Corp Reduction of powdery granular ore
JPS59113110A (en) * 1982-12-21 1984-06-29 Kawasaki Steel Corp Transferring method of preliminarily reduced ore in vertical type furnace melt reduction method
JPS59162213A (en) * 1983-03-04 1984-09-13 Kawasaki Steel Corp Operating furnace of melt reduction furnace
JPS59179726A (en) * 1983-03-31 1984-10-12 Kawasaki Steel Corp Preliminary reducing method of hardly reducible ore
JPS60162718A (en) * 1984-02-06 1985-08-24 Nisshin Steel Co Ltd Production of chromium-containing molten iron by vertical furnace
JPS6118633A (en) * 1984-07-02 1986-01-27 Kawasaki Steel Corp Apparatus for transferring and supplying constant quantity of powder
JPS6256537A (en) * 1985-09-04 1987-03-12 Kawasaki Steel Corp Manufacture of molten metal from powdery ore containing metal oxide

Also Published As

Publication number Publication date
AU534503B2 (en) 1984-02-02
ZA822684B (en) 1983-05-25
AU8285482A (en) 1982-12-23
JPS5918452B2 (en) 1984-04-27

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