FR2115049A1 - Carbon-deficient sponge iron prodn - from iron ore by reducing with carbonaceous gases and then hydrogen - Google Patents

Carbon-deficient sponge iron prodn - from iron ore by reducing with carbonaceous gases and then hydrogen

Info

Publication number
FR2115049A1
FR2115049A1 FR7042367A FR7042367A FR2115049A1 FR 2115049 A1 FR2115049 A1 FR 2115049A1 FR 7042367 A FR7042367 A FR 7042367A FR 7042367 A FR7042367 A FR 7042367A FR 2115049 A1 FR2115049 A1 FR 2115049A1
Authority
FR
France
Prior art keywords
reducing
deficient
hydrogen
carbon
iron
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
FR7042367A
Other languages
French (fr)
Other versions
FR2115049B1 (en
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.)
G SOJUZNY
Original Assignee
G SOJUZNY
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 G SOJUZNY filed Critical G SOJUZNY
Priority to FR7042367A priority Critical patent/FR2115049A1/en
Publication of FR2115049A1 publication Critical patent/FR2115049A1/en
Application granted granted Critical
Publication of FR2115049B1 publication Critical patent/FR2115049B1/fr
Granted 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
    • C21B13/146—Multi-step reduction without melting
    • 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]

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

Fe sponge of low C-content, e.g. 0.02-0.04 wt % suitable for refined Fe is produced by (a) blowing heated gases of oxidation (combustion products) through Fe ore (e.g. opt. concd. ore or pellets); (b) reducing material with C-contg gas (e.g. steam-converted natural gas or synthesis gas) to 60-80% degrees of metallising and (c) finally reducing with heated H2 followed by cooling with cold H2. Pref. reducing gas is alternately blown downwards and upwards through material.
FR7042367A 1970-11-25 1970-11-25 Carbon-deficient sponge iron prodn - from iron ore by reducing with carbonaceous gases and then hydrogen Granted FR2115049A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7042367A FR2115049A1 (en) 1970-11-25 1970-11-25 Carbon-deficient sponge iron prodn - from iron ore by reducing with carbonaceous gases and then hydrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7042367A FR2115049A1 (en) 1970-11-25 1970-11-25 Carbon-deficient sponge iron prodn - from iron ore by reducing with carbonaceous gases and then hydrogen

Publications (2)

Publication Number Publication Date
FR2115049A1 true FR2115049A1 (en) 1972-07-07
FR2115049B1 FR2115049B1 (en) 1974-09-20

Family

ID=9064713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7042367A Granted FR2115049A1 (en) 1970-11-25 1970-11-25 Carbon-deficient sponge iron prodn - from iron ore by reducing with carbonaceous gases and then hydrogen

Country Status (1)

Country Link
FR (1) FR2115049A1 (en)

Also Published As

Publication number Publication date
FR2115049B1 (en) 1974-09-20

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Legal Events

Date Code Title Description
ST Notification of lapse