GB1349477A - Fluidized bed reduction of iron ore - Google Patents

Fluidized bed reduction of iron ore

Info

Publication number
GB1349477A
GB1349477A GB1967871*[A GB1967871A GB1349477A GB 1349477 A GB1349477 A GB 1349477A GB 1967871 A GB1967871 A GB 1967871A GB 1349477 A GB1349477 A GB 1349477A
Authority
GB
United Kingdom
Prior art keywords
fluidized bed
ore
iron ore
reduced
june
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
GB1967871*[A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1349477A publication Critical patent/GB1349477A/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
    • C21B13/146—Multi-step reduction without melting
    • 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

Abstract

1349477 Reducing iron ore ESSO RESEARCH & ENG CO 9 June 1971 [19 June 1970] 19678/71 Heading C7D Specular hematite ore is reduced in a twostage fluidized bed process in the first of which reduction is terminated when the combined oxygen content is 0À01 to 0À2 parts greater than the equilibrium wustite composition to yield a product which is subsequently reduced to a highly metallized condition. The process may be operated continuously with partially reduced ore being discharged from the first stage with its oxygen content 0À05 to 0À2 parts above equilibrium. Operating temperatures for the two stages may be 1100-1800‹ F and 1200-1900‹ F respectively, with the gas composition showing a CO 2 : C0 ratio 0À2 to 1À5, and H 2 O: H 2 ratio of 0À2 to 3, in the first zone and 0À2 to 0À6 in each case in the second zone.
GB1967871*[A 1970-06-19 1971-06-09 Fluidized bed reduction of iron ore Expired GB1349477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4764870A 1970-06-19 1970-06-19

Publications (1)

Publication Number Publication Date
GB1349477A true GB1349477A (en) 1974-04-03

Family

ID=21950150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1967871*[A Expired GB1349477A (en) 1970-06-19 1971-06-09 Fluidized bed reduction of iron ore

Country Status (4)

Country Link
US (1) US3709679A (en)
JP (1) JPS5523882B1 (en)
FR (1) FR2095372B1 (en)
GB (1) GB1349477A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009220A1 (en) * 1997-08-18 1999-02-25 Voest-Alpine Industrieanlagenbau Gmbh Method and apparatus for the direct reduction of a material containing iron oxide in a particulate form

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844770A (en) * 1971-09-17 1974-10-29 I Nixon Manufacture of steel and ferrous alloys
IT1119296B (en) * 1979-06-25 1986-03-10 Fiat Ricerche PROCEDURE FOR THE PRODUCTION OF IRON POWDER

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921848A (en) * 1957-11-21 1960-01-19 United States Steel Corp Fluidized-bed reduction of ore
US3076702A (en) * 1958-12-30 1963-02-05 Exxon Research Engineering Co Iron oxide reduction in stages with varied gas streams
FR1345641A (en) * 1962-10-16 1963-12-13 Electro Chimie Soc D Method and device for the reduction of iron ore
US3374087A (en) * 1965-11-10 1968-03-19 Exxon Research Engineering Co Production of iron
US3364010A (en) * 1965-11-29 1968-01-16 Exxon Research Engineering Co Iron ore reduction
US3479232A (en) * 1966-09-20 1969-11-18 Exxon Research Engineering Co Passivation of metals
US3511642A (en) * 1966-11-17 1970-05-12 Exxon Research Engineering Co Fluid iron ore reduction with inverse temperature staging

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009220A1 (en) * 1997-08-18 1999-02-25 Voest-Alpine Industrieanlagenbau Gmbh Method and apparatus for the direct reduction of a material containing iron oxide in a particulate form
US6336954B1 (en) 1997-08-18 2002-01-08 Voest-Alpine Industrieanlagenbau Gmbh Process and plant for the direct reduction of particulate iron-oxide-containing material
US6569377B2 (en) 1997-08-18 2003-05-27 Voest-Alpine Industrieanlagenbau Gmbh Plant for the direct reduction of particulate iron-oxide-containing material

Also Published As

Publication number Publication date
FR2095372A1 (en) 1972-02-11
JPS5523882B1 (en) 1980-06-25
FR2095372B1 (en) 1975-07-11
US3709679A (en) 1973-01-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee