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FR2359898A1 - Converting iron ore to molten iron - without using a blast furnace and with a redn. in energy cost of more than 50 percent - Google Patents

Converting iron ore to molten iron - without using a blast furnace and with a redn. in energy cost of more than 50 percent

Info

Publication number
FR2359898A1
FR2359898A1 FR7723033A FR7723033A FR2359898A1 FR 2359898 A1 FR2359898 A1 FR 2359898A1 FR 7723033 A FR7723033 A FR 7723033A FR 7723033 A FR7723033 A FR 7723033A FR 2359898 A1 FR2359898 A1 FR 2359898A1
Authority
FR
France
Prior art keywords
gas
bath
oxide
redn
mfr
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.)
Withdrawn
Application number
FR7723033A
Other languages
French (fr)
Inventor
Per Harald Collin
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.)
Stora Enso Oyj
Original Assignee
Stora Kopparbergs Bergslags AB
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 Stora Kopparbergs Bergslags AB filed Critical Stora Kopparbergs Bergslags AB
Publication of FR2359898A1 publication Critical patent/FR2359898A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast 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
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • 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)

Abstract

A bath is reduced to mfr. molten iron and possibly gas contg. H2 and CO, the prim. materials being fine iron oxides, fine solid, liq. or gas fuel, and O2. Fuel is injected into the bath so the latter contains >2% C, whereas the oxide is pref. pre-reduced by a gas (G1) and blown down the outer annulus of a lance onto the bath, O2 being fed through the lance bore. Gas (G1) travelling with the oxide contains sufficient heat to melt the oxide. Gas (G1) is also blown through the outer annulus of several tuyeres into the froth on the bath, O2 being fed through the tuyere bores, each tuyere using a mol. ratio O2/H2 + CO of 0.5. The gas leaving the bath is used for the pre-redn. of the oxide and then washed and H2O and CO2 removed, the resulting gas is used as gas (G1). In the pref. process, the oxides are reduced to FeO, and possibly mixed with slag of forming elements before being blown onto the middle of the bath which contais 3-4.5% carbon. Part of the gas (G1) produced can be used for the conventional mfr. of NH3 by using N2 obtd. during the mfr. of O2 used in the invention.
FR7723033A 1976-07-28 1977-07-27 Converting iron ore to molten iron - without using a blast furnace and with a redn. in energy cost of more than 50 percent Withdrawn FR2359898A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7608526A SE424740B (en) 1976-07-28 1976-07-28 MANUFACTURING THE RAJAR BY MELT REDUCTION

Publications (1)

Publication Number Publication Date
FR2359898A1 true FR2359898A1 (en) 1978-02-24

Family

ID=20328559

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723033A Withdrawn FR2359898A1 (en) 1976-07-28 1977-07-27 Converting iron ore to molten iron - without using a blast furnace and with a redn. in energy cost of more than 50 percent

Country Status (6)

Country Link
JP (1) JPS5344415A (en)
BE (1) BE857261A (en)
DE (1) DE2733790A1 (en)
FR (1) FR2359898A1 (en)
LU (1) LU77844A1 (en)
SE (1) SE424740B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219562C2 (en) * 1982-05-25 1985-01-10 Klöckner-Werke AG, 4100 Duisburg Process for supplying coal to a steelworks
AT375960B (en) * 1982-12-07 1984-09-25 Voest Alpine Ag METHOD AND DEVICE FOR PRODUCING METALS, ESPECIALLY LIQUID PIPE IRON, STEEL PRE-MATERIAL OR REMOTE ALLOYS
DE3320727A1 (en) * 1983-06-09 1984-12-13 Henkel KGaA, 4000 Düsseldorf USE OF FATTY ACID CYANAMIDES AS A SURFACTANT FOR CLEANING HARD SURFACES
DE3320726A1 (en) * 1983-06-09 1984-12-13 Henkel KGaA, 4000 Düsseldorf DETERGENT AND CLEANING AGENT CONTAINING ACYLCYANAMIDE SALTS

Also Published As

Publication number Publication date
JPS5344415A (en) 1978-04-21
DE2733790A1 (en) 1978-02-02
LU77844A1 (en) 1977-10-25
SE424740B (en) 1982-08-09
BE857261A (en) 1977-11-14
SE7608526L (en) 1978-01-29

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Legal Events

Date Code Title Description
ST Notification of lapse