GB830592A - Process for reducing iron oxides - Google Patents

Process for reducing iron oxides

Info

Publication number
GB830592A
GB830592A GB16894/58A GB1689458A GB830592A GB 830592 A GB830592 A GB 830592A GB 16894/58 A GB16894/58 A GB 16894/58A GB 1689458 A GB1689458 A GB 1689458A GB 830592 A GB830592 A GB 830592A
Authority
GB
United Kingdom
Prior art keywords
gas
oxygen
line
reducing
ore
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
GB16894/58A
Inventor
James W Halley
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.)
Inland Steel Co
Original Assignee
Inland Steel Co
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 Inland Steel Co filed Critical Inland Steel Co
Priority to GB16894/58A priority Critical patent/GB830592A/en
Publication of GB830592A publication Critical patent/GB830592A/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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • 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)
  • Manufacture Of Iron (AREA)

Abstract

830,592. Reducing iron ore. INLAND STEEL CO. May 27, 1958, No. 16894/58.. Class 72 The reduction of iron oxide comprises reducing by a gas and melting in a hearth zone wherein oxygen rich gas containing at least 80% oxygen and fuel having an H : C atomic ratio of less than 3 are burnt, the combustion gas having a CO 2 : CO ratio of 0.7 to 3, reforming the gas by the introduction of additional fuel and oxygen in a reforming zone to produce a reformed gas with a CO:CO 2 ratio of at least 7, an H 2 :CO 2 ratio not greater than 1 and a content of not more than 10% CO 2 , reducing a major portion of the iron oxide ore with the gas between 900‹ and 1800‹F. the mixture of incompletely reduced ore being melted in the hearth zone with a surfeit of carbonaceous material to complete the reduction. As shown, incompletely reduced ore, coal, and oxygen are introduced to hearth zone 10 through lines 11, 39, and 13 with combustion gas, slag, and metal leave by lines 19, 18 and 17. The gas goes. to reformer 21 to which oxygen and coal are supplied drawn through line 31 to pump 32, repasses through line 22, and reformed gas goes to heat exchanger 26 where it is cooled prior to the removal of ash by washing with liquid sprays in washer 24. Clean gas is drawn through line 31 to pump 32 repasses through the heat exchanger, and enters the reducing column 12 which it leaves through line 38. Fresh ore is dried at 36 and enters the reducing column through line 37. The quantity of gas produced in the hearth zone, together with the additional quantity produced on reformation, should equal the quantity of gas required by the reducing column. U.S.A. Specifications 2,526,658 and 2,750,277 are referred to.
GB16894/58A 1958-05-27 1958-05-27 Process for reducing iron oxides Expired GB830592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16894/58A GB830592A (en) 1958-05-27 1958-05-27 Process for reducing iron oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16894/58A GB830592A (en) 1958-05-27 1958-05-27 Process for reducing iron oxides

Publications (1)

Publication Number Publication Date
GB830592A true GB830592A (en) 1960-03-16

Family

ID=10085612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16894/58A Expired GB830592A (en) 1958-05-27 1958-05-27 Process for reducing iron oxides

Country Status (1)

Country Link
GB (1) GB830592A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248627A (en) * 1978-05-16 1981-02-03 Trw Inc. Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248627A (en) * 1978-05-16 1981-02-03 Trw Inc. Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures

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