GB873770A - Improvements in or relating to the production of iron - Google Patents

Improvements in or relating to the production of iron

Info

Publication number
GB873770A
GB873770A GB10105/58A GB1010558A GB873770A GB 873770 A GB873770 A GB 873770A GB 10105/58 A GB10105/58 A GB 10105/58A GB 1010558 A GB1010558 A GB 1010558A GB 873770 A GB873770 A GB 873770A
Authority
GB
United Kingdom
Prior art keywords
iron
oxide
particles
vessel
reducing gas
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.)
Expired
Application number
GB10105/58A
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.)
Office National Industriel de lAzote
Original Assignee
Office National Industriel de lAzote
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 Office National Industriel de lAzote filed Critical Office National Industriel de lAzote
Publication of GB873770A publication Critical patent/GB873770A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

873,770. Reducing iron ores. OFFICE NATIONAL INDUSTRIEL DE L'AZOTE. March 28, 1958 [March 30, 1957], No. 10105/58. Class 72 [Also in Group XII] A process for the production of iron by the reduction of a sub-divided natural iron oxide with a reducing gas comprises maintaining the oxide in a turbulent fluidized bed by a stream of reducing gas, the temperature being above 565‹C. and the rate of gas flow being such that the frequency of collisions between the particles s is sufficiently great to seal the pores in the particles. Natural iron oxide comprises naturally occurring oxides of iron and the products of decomposition of other naturally occurring iron compounds. As shown the finely divided oxide is fed through a device 6 into a vessel 1 having a partition 7 extending across the vessel but not to the bottom thereof. A reducing gas is fed into a space below a perforated plate 3 to produce a fluidized bed 4 in the vessel. The oxide passes below the plate 7 and iron particles are discharged at 9 with a gas speed of 0.4 to 2.0 metres per second the discharged iron particles are non-pyrophoric due to sealing of the pores. Specification 754,182 is referred to
GB10105/58A 1957-03-30 1958-03-28 Improvements in or relating to the production of iron Expired GB873770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR873770X 1957-03-30

Publications (1)

Publication Number Publication Date
GB873770A true GB873770A (en) 1961-07-26

Family

ID=9359451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10105/58A Expired GB873770A (en) 1957-03-30 1958-03-28 Improvements in or relating to the production of iron

Country Status (1)

Country Link
GB (1) GB873770A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276858A (en) * 1964-12-07 1966-10-04 Pullman Inc Method for carrying out gas-solids reactions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276858A (en) * 1964-12-07 1966-10-04 Pullman Inc Method for carrying out gas-solids reactions

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