ES399399A1 - Iron sponge prodn - from iron oxide material reduced in revolving cylindrical furnace - Google Patents

Iron sponge prodn - from iron oxide material reduced in revolving cylindrical furnace

Info

Publication number
ES399399A1
ES399399A1 ES399399A ES399399A ES399399A1 ES 399399 A1 ES399399 A1 ES 399399A1 ES 399399 A ES399399 A ES 399399A ES 399399 A ES399399 A ES 399399A ES 399399 A1 ES399399 A1 ES 399399A1
Authority
ES
Spain
Prior art keywords
furnace
reducing agent
revolving cylindrical
cylindrical furnace
iron
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
ES399399A
Other languages
Spanish (es)
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.)
NEW ZEALAND STEEL LIMIT
GEA Group AG
Original Assignee
NEW ZEALAND STEEL LIMIT
Metallgesellschaft AG
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 NEW ZEALAND STEEL LIMIT, Metallgesellschaft AG filed Critical NEW ZEALAND STEEL LIMIT
Publication of ES399399A1 publication Critical patent/ES399399A1/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
    • 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
    • Y02P10/20—Recycling

Abstract

Partial cooling of melting sotck in revolving cylindrical furnace is effected after appreciable reduction by charging at least a part of solid reducing agent with a large amount of volatile constituents into the adjoining furnace zone extensively roasting the reducing agent contg. the volatile constituents as far as the discharge end, separating roasted reducing agent from discharge material and recycling reducing agent to the revolving cylindrical furnace. Partial cooling may be effected at 500-800 (esp., 600-770) degrees C or pref. to a temp. Curie pt. with magnetic separation of Fe sponge from discharge material, directly after discharge from furnace, pref. in a zone having 20 (5-15)% of total furnace length.
ES399399A 1971-02-04 1972-02-02 Iron sponge prodn - from iron oxide material reduced in revolving cylindrical furnace Expired ES399399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712105136 DE2105136A1 (en) 1971-02-04 1971-02-04 Iron sponge prodn - from iron oxide material reduced in revolving cylindrical furnace

Publications (1)

Publication Number Publication Date
ES399399A1 true ES399399A1 (en) 1974-12-01

Family

ID=5797760

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399399A Expired ES399399A1 (en) 1971-02-04 1972-02-02 Iron sponge prodn - from iron oxide material reduced in revolving cylindrical furnace

Country Status (5)

Country Link
AU (1) AU3638871A (en)
BR (1) BR7200452D0 (en)
DE (1) DE2105136A1 (en)
ES (1) ES399399A1 (en)
ZA (1) ZA717775B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2653512C2 (en) * 1976-11-25 1983-10-06 Metallgesellschaft Ag, 6000 Frankfurt Process for the direct reduction of oxidic ferrous materials
DE3428782A1 (en) * 1984-08-04 1986-02-13 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR PRODUCING IRON SPONGE

Also Published As

Publication number Publication date
BR7200452D0 (en) 1973-06-14
ZA717775B (en) 1972-08-30
DE2105136A1 (en) 1972-08-10
AU3638871A (en) 1973-06-21

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