CA1228482A - Reduction of metal compounds - Google Patents

Reduction of metal compounds

Info

Publication number
CA1228482A
CA1228482A CA000468817A CA468817A CA1228482A CA 1228482 A CA1228482 A CA 1228482A CA 000468817 A CA000468817 A CA 000468817A CA 468817 A CA468817 A CA 468817A CA 1228482 A CA1228482 A CA 1228482A
Authority
CA
Canada
Prior art keywords
gas
mixture
temperature
reducing agent
coal
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
CA000468817A
Other languages
English (en)
French (fr)
Inventor
Jan C. De Waal
Peter W.E. Blom
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.)
UNION STEEL Corp (OF SOUTH AFRICA) Ltd (THE)
Original Assignee
UNION STEEL Corp (OF SOUTH AFRICA) Ltd (THE)
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 UNION STEEL Corp (OF SOUTH AFRICA) Ltd (THE) filed Critical UNION STEEL Corp (OF SOUTH AFRICA) Ltd (THE)
Application granted granted Critical
Publication of CA1228482A publication Critical patent/CA1228482A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/002—Heated electrically (plasma)
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/029—Introducing coolant gas in the shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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 And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
CA000468817A 1983-11-29 1984-11-28 Reduction of metal compounds Expired CA1228482A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA838881 1983-11-29
ZA83/8881 1983-11-29

Publications (1)

Publication Number Publication Date
CA1228482A true CA1228482A (en) 1987-10-27

Family

ID=25577036

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000468817A Expired CA1228482A (en) 1983-11-29 1984-11-28 Reduction of metal compounds

Country Status (9)

Country Link
US (1) US4606761A (en, 2012)
EP (1) EP0157917A3 (en, 2012)
JP (1) JPS60155627A (en, 2012)
AU (1) AU3599784A (en, 2012)
BR (1) BR8406090A (en, 2012)
CA (1) CA1228482A (en, 2012)
IN (1) IN163851B (en, 2012)
NZ (1) NZ210377A (en, 2012)
ZW (1) ZW19384A1 (en, 2012)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE453304B (sv) * 1984-10-19 1988-01-25 Skf Steel Eng Ab Sett for framstellning av metaller och/eller generering av slagg fran oxidmalmer
SE457355B (sv) * 1985-09-25 1988-12-19 Skf Steel Eng Ab Saett att framstaella en ren, koloxid och vaetgas innehaallande gas
AU7975487A (en) * 1986-10-16 1988-04-21 Edward L. Bateman Pty. Ltd Plasma treatment of waste h/c gas to produce synthesis gas
JPS6473028A (en) * 1987-09-16 1989-03-17 Tosoh Corp Recovering method for high purity tantalum from scrap tantalum
DE19525270C2 (de) * 1994-07-13 1999-08-26 Int Steel Ind Engineering Co Verfahren zur Gewinnung von Roheisen aus Eisenoxiden
BR9709270A (pt) * 1996-05-28 1999-08-10 L & C Steinmuller Africa Propr Tratamento em leito fluidificado de poeira de eaf
AT406270B (de) 1997-12-05 2000-03-27 Voest Alpine Ind Anlagen Verfahren und anlage zum reduzieren von metalloxidhältigem material
US7604680B2 (en) * 2004-03-31 2009-10-20 General Electric Company Producing nickel-base, cobalt-base, iron-base, iron-nickel-base, or iron-nickel-cobalt-base alloy articles by reduction of nonmetallic precursor compounds and melting
KR101025035B1 (ko) * 2009-06-23 2011-03-25 주성호 프라즈마를 이용한 버어너
JP5630222B2 (ja) * 2010-11-10 2014-11-26 新日鐵住金株式会社 予熱原料を使用した直接還元炉の操業方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140168A (en) * 1961-05-31 1964-07-07 Inland Steel Co Reduction of iron ore with hydrogen
DE2166408C3 (de) * 1970-06-30 1978-08-31 Centre De Recherches Metallurgiques - Centrum Voor Research In De Metallurgie - Association Sans But Lucratif - Vereniging Zonder Winstoogmerk, Bruessel Verwendung eines Plasmabrenners, der vorzugsweise im Innern der Blasform eines Schachtofens, insbesondere Hochofens, angeordnet ist
US3782913A (en) * 1972-03-23 1974-01-01 Us Interior Two-stage gasification of coal with forced reactant mixing and steam treatment of recycled char
SE371453C (sv) * 1973-03-26 1978-01-23 Skf Ind Trading & Dev Sett for framstellning av reduktionsgas
IT1024995B (it) * 1973-12-27 1978-07-20 Centre Rech Metallurgique Procedimento per fabbricare gas ri duttori caldi
BE814899A (fr) * 1974-05-10 1974-11-12 Procede pour fabriquer des gaz reducteurs chauds.
US3988123A (en) * 1975-08-15 1976-10-26 The United States Of America As Represented By The United States Energy Research And Development Administration Gasification of carbonaceous solids
CA1147964A (en) * 1979-05-25 1983-06-14 Francis J. Ii Harvey Process for reducing spent gas generated in the production of sponge iron
BE883667A (nl) * 1980-06-05 1980-12-05 Centre Rech Metallurgique Procede de conduite d'un four a cuve
US4395389A (en) * 1982-03-01 1983-07-26 Ethyl Corporation Chlorosilane disproportionation process

Also Published As

Publication number Publication date
ZW19384A1 (en) 1985-02-20
EP0157917A3 (en) 1986-03-19
US4606761A (en) 1986-08-19
AU3599784A (en) 1985-06-13
JPH0257134B2 (en, 2012) 1990-12-04
JPS60155627A (ja) 1985-08-15
BR8406090A (pt) 1985-09-24
IN163851B (en, 2012) 1988-11-26
NZ210377A (en) 1988-06-30
EP0157917A2 (en) 1985-10-16

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Legal Events

Date Code Title Description
MKEX Expiry