FR2174796A1 - Reducing ferrous minerals - using treated furnace mouth gases - Google Patents

Reducing ferrous minerals - using treated furnace mouth gases

Info

Publication number
FR2174796A1
FR2174796A1 FR7208574A FR7208574A FR2174796A1 FR 2174796 A1 FR2174796 A1 FR 2174796A1 FR 7208574 A FR7208574 A FR 7208574A FR 7208574 A FR7208574 A FR 7208574A FR 2174796 A1 FR2174796 A1 FR 2174796A1
Authority
FR
France
Prior art keywords
furnace
gases
minerals
furnace mouth
treated furnace
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
FR7208574A
Other languages
French (fr)
Other versions
FR2174796B1 (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.)
ERIM
Original Assignee
ERIM
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 ERIM filed Critical ERIM
Priority to FR7208574A priority Critical patent/FR2174796A1/en
Publication of FR2174796A1 publication Critical patent/FR2174796A1/en
Application granted granted Critical
Publication of FR2174796B1 publication Critical patent/FR2174796B1/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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
    • 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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • 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
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • 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
    • 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
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Process for redn. of lumps of Fe minerals comprises charging the bumps mixed with lumps of coal into an 'ERIM' furnace, ie. a furnace in which heat is supplied because part of the gases circulating in the furnace is burnt by air or O2 introduced in a suitable manner so that the furnace atmos. remains reductive. Part of the gases from the top of the furnace are recycled to the base of the furnace after treatment to eliminate elements which oppose redn. of Fe minerals, partic. H2O and CO2. The recycled gases are only those recovered at the top of the furnace which result from distillation of coal and without using reformed gases produced outside the furnace.
FR7208574A 1972-03-10 1972-03-10 Reducing ferrous minerals - using treated furnace mouth gases Granted FR2174796A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7208574A FR2174796A1 (en) 1972-03-10 1972-03-10 Reducing ferrous minerals - using treated furnace mouth gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7208574A FR2174796A1 (en) 1972-03-10 1972-03-10 Reducing ferrous minerals - using treated furnace mouth gases

Publications (2)

Publication Number Publication Date
FR2174796A1 true FR2174796A1 (en) 1973-10-19
FR2174796B1 FR2174796B1 (en) 1976-01-16

Family

ID=9095048

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7208574A Granted FR2174796A1 (en) 1972-03-10 1972-03-10 Reducing ferrous minerals - using treated furnace mouth gases

Country Status (1)

Country Link
FR (1) FR2174796A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035487A2 (en) * 1980-02-28 1981-09-09 VOEST-ALPINE Aktiengesellschaft Process for the direct production of steel from raw materials that contain iron oxide
EP0244551A1 (en) * 1986-05-07 1987-11-11 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Integrated metallurgical plant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035487A2 (en) * 1980-02-28 1981-09-09 VOEST-ALPINE Aktiengesellschaft Process for the direct production of steel from raw materials that contain iron oxide
EP0035487A3 (en) * 1980-02-28 1981-11-18 VOEST-ALPINE Aktiengesellschaft Process for the direct production of steel from raw materials that contain iron oxide
EP0244551A1 (en) * 1986-05-07 1987-11-11 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Integrated metallurgical plant

Also Published As

Publication number Publication date
FR2174796B1 (en) 1976-01-16

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Legal Events

Date Code Title Description
ST Notification of lapse