FR2148407A1 - Deoxidising ores - in externally heated retort system with injection of reducing gas below heating zone - Google Patents

Deoxidising ores - in externally heated retort system with injection of reducing gas below heating zone

Info

Publication number
FR2148407A1
FR2148407A1 FR7206728A FR7206728A FR2148407A1 FR 2148407 A1 FR2148407 A1 FR 2148407A1 FR 7206728 A FR7206728 A FR 7206728A FR 7206728 A FR7206728 A FR 7206728A FR 2148407 A1 FR2148407 A1 FR 2148407A1
Authority
FR
France
Prior art keywords
heating zone
reducing gas
deoxidising
ores
injection
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
FR7206728A
Other languages
French (fr)
Other versions
FR2148407B1 (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.)
SERVIOIOS INGENIERIA
Original Assignee
SERVIOIOS INGENIERIA
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 SERVIOIOS INGENIERIA filed Critical SERVIOIOS INGENIERIA
Publication of FR2148407A1 publication Critical patent/FR2148407A1/en
Application granted granted Critical
Publication of FR2148407B1 publication Critical patent/FR2148407B1/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
    • C21B13/04—Making spongy iron or liquid steel, by direct processes in retorts
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • 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)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Catalysts (AREA)

Abstract

A charge consisting of ore and solid reducing agent is fed into a retort which is heated by an external source. Strongly reducing gas (CO and H2) is injected into the retort at several levels situated below the heating zone of the retort in such a way that an ascending current of gas passing through the charge acts as catalyst and accelerates the reactions within the charge. An improved product is obtained with regard to carburisation and desulphurisation.
FR7206728A 1971-08-11 1972-02-28 Deoxidising ores - in externally heated retort system with injection of reducing gas below heating zone Granted FR2148407A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES394143A ES394143A1 (en) 1971-08-11 1971-08-11 Improvements in procedures and devices used for the elimination of oxygen present in oxides. (Machine-translation by Google Translate, not legally binding)

Publications (2)

Publication Number Publication Date
FR2148407A1 true FR2148407A1 (en) 1973-03-23
FR2148407B1 FR2148407B1 (en) 1976-07-09

Family

ID=8458992

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7206728A Granted FR2148407A1 (en) 1971-08-11 1972-02-28 Deoxidising ores - in externally heated retort system with injection of reducing gas below heating zone

Country Status (9)

Country Link
AU (1) AU4522572A (en)
BE (1) BE787056A (en)
BR (1) BR7205471D0 (en)
DE (1) DE2156323A1 (en)
ES (1) ES394143A1 (en)
FR (1) FR2148407A1 (en)
IT (1) IT952078B (en)
NL (1) NL7211003A (en)
ZA (1) ZA725542B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053301A (en) * 1975-10-14 1977-10-11 Hazen Research, Inc. Process for the direct production of steel
IT1097724B (en) * 1977-11-22 1985-08-31 Kinglor Metor Spa IMPROVEMENTS IN THE CARBOTHERMAL PROCESS FOR OBTAINING IRON SPONGE AND CARBOTHERMAL PROCESS SO PERFECTED

Also Published As

Publication number Publication date
DE2156323A1 (en) 1973-03-29
IT952078B (en) 1973-07-20
BR7205471D0 (en) 1974-04-18
BE787056A (en) 1972-12-01
FR2148407B1 (en) 1976-07-09
AU4522572A (en) 1974-02-07
NL7211003A (en) 1973-02-13
ES394143A1 (en) 1974-11-16
ZA725542B (en) 1973-05-30

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Legal Events

Date Code Title Description
ST Notification of lapse