GB879664A - Improvements in or relating to the reduction of metallic oxides - Google Patents

Improvements in or relating to the reduction of metallic oxides

Info

Publication number
GB879664A
GB879664A GB19417/58A GB1941758A GB879664A GB 879664 A GB879664 A GB 879664A GB 19417/58 A GB19417/58 A GB 19417/58A GB 1941758 A GB1941758 A GB 1941758A GB 879664 A GB879664 A GB 879664A
Authority
GB
United Kingdom
Prior art keywords
balls
oxides
temperature
iron
bodies
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
GB19417/58A
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.)
OLOF ERIK AUGUST ASPEGREN
Original Assignee
OLOF ERIK AUGUST ASPEGREN
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 OLOF ERIK AUGUST ASPEGREN filed Critical OLOF ERIK AUGUST ASPEGREN
Publication of GB879664A publication Critical patent/GB879664A/en
Expired 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
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary 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 Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

879,664. Reducing iron and other metallic oxides. ASPEGREN, O. E. A. June 17, 1958 [June 18, 1957; May 8, 1958], No. 19417/58 Classes 72 and 82(1) A method of reducing metalic oxides by cold or preheated reducing gas containing free hydrogen comprises moving preheated bodies countercurrently with the oxides in a drum rotating about a horizontal axis, the oxides and the bodies being introduced at, opposite ends of the drum and the temperature and/or the rate of supply of the bodies being such that the reduction takes place at a temperature not above 870‹C. As shown iron oxide may be suplied to a rotary furnace 1 at one end and balls, heated to 610‹C. at the other. As the balls move from right to left their temperature is reduced until at the centre portion their temperature is 570‹C. and at this zone hydrogen is introduced into the furnace through slats 5 from a funnel 7. The iron produced is heated by the fresh balls to, 610‹C to make it non-. pyrophoric and is discharged at 9, the balls being discharged by grids 12 and deposited in a funnel 13. The balls may be reheated and recirculated or may be used to cool the discharged iron, or preheat the iron oxide, or both before reheating. The gas may be a mixture of hydrogen and carbon monoxide.
GB19417/58A 1957-06-18 1958-06-17 Improvements in or relating to the reduction of metallic oxides Expired GB879664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE879664X 1957-06-18

Publications (1)

Publication Number Publication Date
GB879664A true GB879664A (en) 1961-10-11

Family

ID=20370973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19417/58A Expired GB879664A (en) 1957-06-18 1958-06-17 Improvements in or relating to the reduction of metallic oxides

Country Status (1)

Country Link
GB (1) GB879664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202502A (en) * 1960-12-16 1965-08-24 Broken Hill Pty Co Ltd Process for the comminution of siliceous iron ores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202502A (en) * 1960-12-16 1965-08-24 Broken Hill Pty Co Ltd Process for the comminution of siliceous iron ores

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