EP1017858A4 - Mixed bed iron reduction process - Google Patents

Mixed bed iron reduction process

Info

Publication number
EP1017858A4
EP1017858A4 EP98918362A EP98918362A EP1017858A4 EP 1017858 A4 EP1017858 A4 EP 1017858A4 EP 98918362 A EP98918362 A EP 98918362A EP 98918362 A EP98918362 A EP 98918362A EP 1017858 A4 EP1017858 A4 EP 1017858A4
Authority
EP
European Patent Office
Prior art keywords
reduction process
mixed bed
iron reduction
bed iron
mixed
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.)
Withdrawn
Application number
EP98918362A
Other languages
German (de)
French (fr)
Other versions
EP1017858A1 (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
Iron Dynamics Inc
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 Iron Dynamics Inc filed Critical Iron Dynamics Inc
Publication of EP1017858A1 publication Critical patent/EP1017858A1/en
Publication of EP1017858A4 publication Critical patent/EP1017858A4/en
Withdrawn legal-status Critical Current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
EP98918362A 1997-04-22 1998-04-22 Mixed bed iron reduction process Withdrawn EP1017858A4 (en)

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
PCT/US1998/007777 WO1998048056A1 (en) 1997-04-22 1998-04-22 Mixed bed iron reduction process
US841468 2001-04-24

Publications (2)

Publication Number Publication Date
EP1017858A1 EP1017858A1 (en) 2000-07-12
EP1017858A4 true EP1017858A4 (en) 2000-07-19

Family

ID=25284957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98918362A Withdrawn EP1017858A4 (en) 1997-04-22 1998-04-22 Mixed bed iron reduction process

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102112635B1 (en) * 2017-12-19 2020-05-19 재단법인 포항산업과학연구원 The method for producing direct reduced iron by multi-stage reduction
CN112811723A (en) * 2020-12-30 2021-05-18 中海油天津化工研究设计院有限公司 Intelligent rural domestic sewage treatment system and method

Citations (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 (en) * 1933-08-16 1934-02-22 Kloeckner Werke Ag Process for manufacturing spongy iron and apparatus for carrying out this process
DE955774C (en) * 1954-10-14 1957-01-10 Kurd Von Haken Dipl Ing Reduction of iron oxides and iron ores at low temperatures
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
WO1997006281A1 (en) * 1995-08-07 1997-02-20 Technological Resources Pty. Ltd. Reducing iron oxides in rotary hearth furnace

Patent Citations (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 (en) * 1933-08-16 1934-02-22 Kloeckner Werke Ag Process for manufacturing spongy iron and apparatus for carrying out this process
DE955774C (en) * 1954-10-14 1957-01-10 Kurd Von Haken Dipl Ing Reduction of iron oxides and iron ores at low temperatures
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
WO1997006281A1 (en) * 1995-08-07 1997-02-20 Technological Resources Pty. Ltd. Reducing iron oxides in rotary hearth furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9848056A1 *

Also Published As

Publication number Publication date
KR20010020219A (en) 2001-03-15
JP2001522405A (en) 2001-11-13
EP1017858A1 (en) 2000-07-12
CA2288095A1 (en) 1998-10-29
BR9809287A (en) 2001-07-24

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