CA2288095A1 - Procede de reduction de fer a lit melange - Google Patents

Procede de reduction de fer a lit melange Download PDF

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Publication number
CA2288095A1
CA2288095A1 CA002288095A CA2288095A CA2288095A1 CA 2288095 A1 CA2288095 A1 CA 2288095A1 CA 002288095 A CA002288095 A CA 002288095A CA 2288095 A CA2288095 A CA 2288095A CA 2288095 A1 CA2288095 A1 CA 2288095A1
Authority
CA
Canada
Prior art keywords
iron
mixture
iron oxide
hearth
particulate
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.)
Abandoned
Application number
CA002288095A
Other languages
English (en)
Inventor
Larry J. Lehtinen
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.)
Iron Dynamics Inc
Original Assignee
Individual
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
Priority claimed from US08/841,468 external-priority patent/US5972066A/en
Application filed by Individual filed Critical Individual
Publication of CA2288095A1 publication Critical patent/CA2288095A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/08—Making pig-iron other than in blast furnaces in hearth-type furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

Procédé permettant de produire du fer de réduction directe, de manière continue et efficace. Le procédé consiste à utiliser un mélange d'une composition d'oxyde de fer particulaire et d'une composition d'agent réducteur carboné particulaire, le mélange étant sensiblement non aggloméré et présentant une teneur en humidité inférieure à environ 14 % d'eau en poids; à placer le mélange dans un four à foyer rotatif; à imposer au mélange des conditions réductrices pour réduire une partie substantielle de l'oxyde de fer et produire ainsi du fer spongieux; puis à sortir le fer spongieux du four à foyer rotatif.
CA002288095A 1997-04-22 1998-04-22 Procede de reduction de fer a lit melange Abandoned CA2288095A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/841,468 US5972066A (en) 1997-04-22 1997-04-22 Mixed bed iron reduction process
US08/841,468 1997-04-22
PCT/US1998/007777 WO1998048056A1 (fr) 1997-04-22 1998-04-22 Procede de reduction de fer a lit melange

Publications (1)

Publication Number Publication Date
CA2288095A1 true CA2288095A1 (fr) 1998-10-29

Family

ID=25284957

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002288095A Abandoned CA2288095A1 (fr) 1997-04-22 1998-04-22 Procede de reduction de fer a lit melange

Country Status (5)

Country Link
EP (1) EP1017858A4 (fr)
JP (1) JP2001522405A (fr)
KR (1) KR20010020219A (fr)
BR (1) BR9809287A (fr)
CA (1) CA2288095A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102112635B1 (ko) * 2017-12-19 2020-05-19 재단법인 포항산업과학연구원 다단 환원을 통한 직접환원철 제조방법
CN112811723A (zh) * 2020-12-30 2021-05-18 中海油天津化工研究设计院有限公司 一种智慧化农村生活污水处理系统及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1452627A (en) * 1921-01-21 1923-04-24 Edwin B Thornhill Process for the production of sponge iron and other metallic products
US1832731A (en) * 1927-08-25 1931-11-17 Howard J Pardee Treatment of iron ores
FR760433A (fr) * 1933-08-16 1934-02-22 Kloeckner Werke Ag Procédé de fabrication de fer spongieux et appareillage permettant la mise en oeuvre de ce procédé
DE955774C (de) * 1954-10-14 1957-01-10 Kurd Von Haken Dipl Ing Reduktion von Eisenoxyden und Eisenerzen bei tiefen Temperaturen
GB1246308A (en) * 1968-12-05 1971-09-15 Gkn Group Services Ltd Production of sintered metal articles direct from metal ore
US4189312A (en) * 1976-01-05 1980-02-19 Salem Furnace Co. Weight ratio mixing of volatile containing carbonaceous materials with materials to be treated by the volatiles evolved therefrom
US5567224A (en) * 1995-06-06 1996-10-22 Armco Inc. Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame
AUPN461695A0 (en) * 1995-08-07 1995-08-31 Technological Resources Pty Limited A process for reducing iron oxides

Also Published As

Publication number Publication date
EP1017858A4 (fr) 2000-07-19
JP2001522405A (ja) 2001-11-13
BR9809287A (pt) 2001-07-24
KR20010020219A (ko) 2001-03-15
EP1017858A1 (fr) 2000-07-12

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Legal Events

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