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GB833016A - Self-fluxing synthetic iron scrap and method of preparing the same - Google Patents

Self-fluxing synthetic iron scrap and method of preparing the same

Info

Publication number
GB833016A
GB833016A GB565257A GB565257A GB833016A GB 833016 A GB833016 A GB 833016A GB 565257 A GB565257 A GB 565257A GB 565257 A GB565257 A GB 565257A GB 833016 A GB833016 A GB 833016A
Authority
GB
United Kingdom
Prior art keywords
ore
lime
reduced
preparing
self
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
GB565257A
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.)
United States Steel Corp
Original Assignee
United States Steel Corp
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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB833016A publication Critical patent/GB833016A/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
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/008—Use of special additives or fluxing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A method of preparing a self-fluxing iron ore for use as a substitute for scrap comprises at least partly reducing a finely divided ore by gaseous reduction in a fluidized bed, agglomerating the reduced ore without reoxidation, and coating the agglomerates with lime, the final composition of the agglomerates being 1-30% lime, up to 10% gangue, and the balance reduced or partly reduced iron ore. From 1-20% of lime, which may be as limestone or dolomite, may be mixed with the ore before the latter is added to the reducing vessel and preheated to 1600 DEG to 1900 DEG F., or it may be added to the reducing vessel. The reduced ore is cooled, agglomerated, and coated with lime, which may be moistened with water or oil, by tumbling. The product is stated to be satisfactory as an addition to the charge in steel making.
GB565257A 1956-06-01 1957-02-19 Self-fluxing synthetic iron scrap and method of preparing the same Expired GB833016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US833016XA 1956-06-01 1956-06-01

Publications (1)

Publication Number Publication Date
GB833016A true GB833016A (en) 1960-04-21

Family

ID=22177444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB565257A Expired GB833016A (en) 1956-06-01 1957-02-19 Self-fluxing synthetic iron scrap and method of preparing the same

Country Status (1)

Country Link
GB (1) GB833016A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401227A1 (en) * 1977-08-25 1979-03-23 Voest Ag IRON SPONGE TREATMENT PROCESS FOR PROTECTION AGAINST REOXIDATION AND DEVICE FOR IMPLEMENTING THIS PROCESS
EP0041940A1 (en) * 1980-06-11 1981-12-16 VOEST-ALPINE Aktiengesellschaft Method of treating metallic additives used in metallurgy, especially sponge iron
EP0049236A1 (en) * 1980-10-01 1982-04-07 VOEST-ALPINE Aktiengesellschaft Method of treating sponge iron
CN109956737A (en) * 2019-05-15 2019-07-02 中南大学 A method for preparing active mixture by belt roaster pellet method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401227A1 (en) * 1977-08-25 1979-03-23 Voest Ag IRON SPONGE TREATMENT PROCESS FOR PROTECTION AGAINST REOXIDATION AND DEVICE FOR IMPLEMENTING THIS PROCESS
EP0041940A1 (en) * 1980-06-11 1981-12-16 VOEST-ALPINE Aktiengesellschaft Method of treating metallic additives used in metallurgy, especially sponge iron
EP0049236A1 (en) * 1980-10-01 1982-04-07 VOEST-ALPINE Aktiengesellschaft Method of treating sponge iron
CN109956737A (en) * 2019-05-15 2019-07-02 中南大学 A method for preparing active mixture by belt roaster pellet method

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