GB690527A - Improvements in or relating to partial reduction of iron ore - Google Patents

Improvements in or relating to partial reduction of iron ore

Info

Publication number
GB690527A
GB690527A GB12481/51A GB1248151A GB690527A GB 690527 A GB690527 A GB 690527A GB 12481/51 A GB12481/51 A GB 12481/51A GB 1248151 A GB1248151 A GB 1248151A GB 690527 A GB690527 A GB 690527A
Authority
GB
United Kingdom
Prior art keywords
ore
vessel
zone
pipe
preheated
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
GB12481/51A
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development 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 Standard Oil Development Co filed Critical Standard Oil Development Co
Publication of GB690527A publication Critical patent/GB690527A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B1/02—Roasting 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
    • 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

Landscapes

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

Abstract

690,527. Treating iron ore to facilitate concentration. STANDARD OIL DEVELOPMENT CO. May 28, 1951 [Sept. 9, 1950], No. 12481/51. Class 82(i) A method of reducing a lean subdivided oxidic ore containing Fe 2 O 3 comprises mixing subdivided carbonaceous material such as low grade coal or petroleum pitch with the ore, forming a suspension of the mixture in a gas containing free oxygen, maintaining the suspension at a temperature sufficiently high, e.g. 1200‹F-2500‹F to cause formation of a relatively large amount of carbon dioxide and a relatively small duantity of carbon monoxide, permitting sufficient contact between the thusformed carbon monoxide and the ore to convert Fe 2 O 3 into Fe 3 O 4 and separating the ore from the gas. The Fe 3 O 4 may then be separated magnetically from the ore. In the apparatus shown in Fig. 1 low-grade finely-divided coal from hopper ,1 is fed to zone A of vessel 3 in which it is fluidized and preheated by gases rising through the vessel. Finely-divided ore from hopper 5 is similarly treated in zone B. Ore and coal from their respective zones are fed by pipes 14 and 12 to riser 13 in which they meet a stream of preheated air.' The reacting materials are carried into the lower part C of vessel 3 where the reaction is completed, the temperature of this zone being controlled by feeding directly some ore from pipe 14 by pipe 14a. Gas and ore are separated in zone C, the gases rising through vessel 3 and ore passing by pipe 15. to a heat exchanger 10 in which steam is raised in coil 10a and the air supply is preheated in coil lOb. The ore then passes to a magnetic separater 20.
GB12481/51A 1950-09-09 1951-05-28 Improvements in or relating to partial reduction of iron ore Expired GB690527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US690527XA 1950-09-09 1950-09-09

Publications (1)

Publication Number Publication Date
GB690527A true GB690527A (en) 1953-04-22

Family

ID=22086420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12481/51A Expired GB690527A (en) 1950-09-09 1951-05-28 Improvements in or relating to partial reduction of iron ore

Country Status (1)

Country Link
GB (1) GB690527A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190744A (en) * 1963-01-09 1965-06-22 Northern Natural Gas Co Process for magnetic reduction of iron ore
US3348941A (en) * 1964-09-15 1967-10-24 Northern Natural Gas Co Pressure balancing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190744A (en) * 1963-01-09 1965-06-22 Northern Natural Gas Co Process for magnetic reduction of iron ore
US3348941A (en) * 1964-09-15 1967-10-24 Northern Natural Gas Co Pressure balancing method

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