FR2456780A1 - Discontinuous metal oxide reduction - esp. to produce sponge iron using one cooling reactor and two reduction reactors (BR 9.12.80) - Google Patents

Discontinuous metal oxide reduction - esp. to produce sponge iron using one cooling reactor and two reduction reactors (BR 9.12.80)

Info

Publication number
FR2456780A1
FR2456780A1 FR8008011A FR8008011A FR2456780A1 FR 2456780 A1 FR2456780 A1 FR 2456780A1 FR 8008011 A FR8008011 A FR 8008011A FR 8008011 A FR8008011 A FR 8008011A FR 2456780 A1 FR2456780 A1 FR 2456780A1
Authority
FR
France
Prior art keywords
reduction
reactors
cooling reactor
esp
metal oxide
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Withdrawn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
FR8008011A
Other languages
French (fr)
Inventor
Juan Celada
Patrick William Mackay
Juan Federico Price-Falcon
Ricardo Viramontes-Brown
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.)
Hylsa SA de CV
Original Assignee
Hylsa SA de CV
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 Hylsa SA de CV filed Critical Hylsa SA de CV
Publication of FR2456780A1 publication Critical patent/FR2456780A1/en
Withdrawn legal-status Critical Current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
    • C21B13/04—Making spongy iron or liquid steel, by direct processes in retorts
    • 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
    • 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
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • 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
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

Discontinuous reduction of metal oxides to the metal is described in which separate fixed beds of metalliferous material treated simultaneously in at least one cooling reactor and at least two reduction reactors, and in which a reducing gas composed of CO and H2 is used for reducing the material, and which also may contain methane CO2 and steam for cooling the material. Specifically, the gaseous effluent from the cooling reactor is circulated in parallel in the metalliferous mass in the reduction reactors. The gas introduced into each redn. reactor is heated before entering the reactors, and the gas effluent from them is cooled to remove water. Part of this cooled gas is then reheated and recycled to the reduction reactors. The amt. of reducing gas required per ton of metal, is reduced.
FR8008011A 1979-04-26 1980-04-09 Discontinuous metal oxide reduction - esp. to produce sponge iron using one cooling reactor and two reduction reactors (BR 9.12.80) Withdrawn FR2456780A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3369379A 1979-04-26 1979-04-26

Publications (1)

Publication Number Publication Date
FR2456780A1 true FR2456780A1 (en) 1980-12-12

Family

ID=21871905

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8008011A Withdrawn FR2456780A1 (en) 1979-04-26 1980-04-09 Discontinuous metal oxide reduction - esp. to produce sponge iron using one cooling reactor and two reduction reactors (BR 9.12.80)

Country Status (9)

Country Link
AR (1) AR219665A1 (en)
BR (1) BR8002503A (en)
DD (1) DD150225A5 (en)
ES (1) ES8104422A1 (en)
FR (1) FR2456780A1 (en)
IT (1) IT1188928B (en)
MX (1) MX154126A (en)
YU (1) YU108380A (en)
ZM (1) ZM4480A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5674308A (en) * 1994-08-12 1997-10-07 Midrex International B.V. Rotterdam, Zurich Branch Spouted bed circulating fluidized bed direct reduction system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219234A1 (en) * 1973-02-22 1974-09-20 Fierro Esponja
FR2247541A1 (en) * 1973-10-16 1975-05-09 Fierro Esponja

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219234A1 (en) * 1973-02-22 1974-09-20 Fierro Esponja
FR2247541A1 (en) * 1973-10-16 1975-05-09 Fierro Esponja

Also Published As

Publication number Publication date
BR8002503A (en) 1980-12-09
ES490938A0 (en) 1981-04-16
ES8104422A1 (en) 1981-04-16
YU108380A (en) 1983-01-21
ZM4480A1 (en) 1981-09-21
MX154126A (en) 1987-05-21
IT8048511A1 (en) 1981-10-24
IT8048511A0 (en) 1980-04-24
AR219665A1 (en) 1980-08-29
IT1188928B (en) 1988-01-28
DD150225A5 (en) 1981-08-19

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Legal Events

Date Code Title Description
ST Notification of lapse