FR2435530A1 - Procede et dispositif pour la reduction directe d'oxydes metalliques en produits a forte teneur en metal et a l'etat solide - Google Patents
Procede et dispositif pour la reduction directe d'oxydes metalliques en produits a forte teneur en metal et a l'etat solideInfo
- Publication number
- FR2435530A1 FR2435530A1 FR7921256A FR7921256A FR2435530A1 FR 2435530 A1 FR2435530 A1 FR 2435530A1 FR 7921256 A FR7921256 A FR 7921256A FR 7921256 A FR7921256 A FR 7921256A FR 2435530 A1 FR2435530 A1 FR 2435530A1
- Authority
- FR
- France
- Prior art keywords
- metal oxides
- furnace
- solid state
- metal
- direct reduction
- 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.)
- Granted
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
- C21B13/02—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
- C21B13/0086—Conditioning, transformation of reduced iron ores
- C21B13/0093—Protecting against oxidation
-
- 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
- C21B2100/40—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)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
Réduction directe des oxydes métalliques en fer chaud à l'état solide. Dans un four à cuve de forme générale verticale alimenté en oxydes métalliques et en gaz réducteurs transformant les oxydes métalliques en libre, on établit dans la région inférieure du four une circulation de gaz inerte provoquant l'étanchéité entre l'intérieur et l'extérieur du four et permettant d'évacuer le métal chaud sans risque de fuite de gaz inflammable vers l'extérieur; le four peut être relié à une machine à briqueter dans laquelle le métal est mis sous la forme de briquettes. On évite un refroidissement intermédiaire et les inconvénients correspondants.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/940,806 US4188022A (en) | 1978-09-08 | 1978-09-08 | Hot discharge direct reduction furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2435530A1 true FR2435530A1 (fr) | 1980-04-04 |
FR2435530B1 FR2435530B1 (fr) | 1984-02-24 |
Family
ID=25475451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7921256A Granted FR2435530A1 (fr) | 1978-09-08 | 1979-08-23 | Procede et dispositif pour la reduction directe d'oxydes metalliques en produits a forte teneur en metal et a l'etat solide |
Country Status (14)
Country | Link |
---|---|
US (1) | US4188022A (fr) |
JP (1) | JPS5538995A (fr) |
AR (1) | AR218996A1 (fr) |
AU (1) | AU526797B2 (fr) |
BR (1) | BR7905516A (fr) |
CA (1) | CA1119813A (fr) |
DE (1) | DE2935707C2 (fr) |
EG (1) | EG14104A (fr) |
FR (1) | FR2435530A1 (fr) |
GB (1) | GB2032594B (fr) |
MX (1) | MX151937A (fr) |
MY (1) | MY8400367A (fr) |
SU (1) | SU1082328A3 (fr) |
ZA (1) | ZA794289B (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4280840A (en) * | 1979-11-08 | 1981-07-28 | Pullman Incorporated | Method of processing sponge iron |
DE3034539C2 (de) * | 1980-09-12 | 1982-07-22 | Korf-Stahl Ag, 7570 Baden-Baden | Verfahren und Vorrichtung zur direkten Erzeugung von flüssigem Roheisen aus stückigem Eisenerz |
CA1204287A (fr) * | 1982-03-22 | 1986-05-13 | Frank V. Summers | Methode de generation d'un gaz reducteur |
US4897113A (en) * | 1985-09-23 | 1990-01-30 | Hylsa, S.A. | Direct reduction process in reactor with hot discharge |
US5296015A (en) * | 1990-01-09 | 1994-03-22 | Hylsa S.A. De C.V. | Method for the pneumatic transport of large iron-bearing particles |
DE4224055C1 (de) * | 1992-07-21 | 1993-12-16 | Koeppern & Co Kg Maschf | Verfahren zur Herstellung von Stahl |
AT404361B (de) * | 1995-01-23 | 1998-11-25 | Voest Alpine Ind Anlagen | Verfahren und vorrichtung zum abkühlen von heissem eisenschwamm |
DE19623246C1 (de) | 1996-05-30 | 1997-10-02 | Voest Alpine Ind Anlagen | Verfahren und Vorrichtung zur Beschickung eines Einschmelzvergasers mit Vergasungsmitteln und Eisenschwamm |
AT406963B (de) | 1998-08-12 | 2000-11-27 | Voest Alpine Ind Anlagen | Verfahren zur herstellung von eisenbriketts und/oder kaltem eisenschwamm |
JP4053190B2 (ja) | 1999-06-24 | 2008-02-27 | 東邦化学工業株式会社 | 剥離防止性に優れた加熱型舗装材料の製造方法 |
IT1315147B1 (it) * | 2000-11-14 | 2003-02-03 | Danieli Off Mecc | Forno per la riduzione diretta di ossidi di ferro |
CN100494409C (zh) * | 2006-11-29 | 2009-06-03 | 周广砥 | 还原海绵铁的高炉 |
AT505490B1 (de) * | 2007-06-28 | 2009-12-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur erzeugung von eisenschwamm |
EA027331B1 (ru) * | 2012-10-18 | 2017-07-31 | Тенова Минералз (Пти) Лтд. | Нагревательное устройство и газораспределитель для использования в нем |
RU2590031C1 (ru) * | 2015-01-12 | 2016-07-10 | Общество с ограниченной ответственностью "Научно-производственное внедренческое предприятие ТОРЭКС" | Способ прямого получения губчатого железа с использованием газокислородной конверсии и шахтная печь для его осуществления |
RU2590029C1 (ru) * | 2015-01-12 | 2016-07-10 | Общество с ограниченной ответственностью "Научно-производственное внедренческое предприятие ТОРЭКС" | Способ получения губчатого железа и шахтная печь для его осуществления |
EP3255157A1 (fr) | 2016-06-09 | 2017-12-13 | Primetals Technologies Austria GmbH | Procédé de réduction directe avec dépoussièrage des gaz évacués |
EP3255158A1 (fr) * | 2016-06-09 | 2017-12-13 | Primetals Technologies Austria GmbH | Procédé et appareil de réduction directe par exploitation de gaz evacués |
EP3763832A1 (fr) | 2019-07-08 | 2021-01-13 | Primetals Technologies Austria GmbH | Étanchéité d'une unité de réduction |
CN114561543B (zh) * | 2022-03-01 | 2023-09-29 | 合肥工业大学 | 一种从钨铼合金废料中回收铼粉的装置和方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2591789A (en) * | 1948-06-24 | 1952-04-08 | Brassert & Co | Apparatus for reducing metallic oxides |
US2999748A (en) * | 1958-11-27 | 1961-09-12 | Elektrokemisk As | Process of reducing molded bodies comprising metallic oxides |
US3850616A (en) * | 1973-10-29 | 1974-11-26 | Armco Steel Corp | Inert gas seal for product discharge from a shaft furnace |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3836131A (en) * | 1973-12-26 | 1974-09-17 | Mildrex Corp | Apparatus for cooling a moving bed of solid, gas permeable particles |
-
1978
- 1978-09-08 US US05/940,806 patent/US4188022A/en not_active Expired - Lifetime
-
1979
- 1979-08-03 CA CA000333100A patent/CA1119813A/fr not_active Expired
- 1979-08-07 AU AU49652/79A patent/AU526797B2/en not_active Expired
- 1979-08-10 AR AR277677A patent/AR218996A1/es active
- 1979-08-15 ZA ZA00794289A patent/ZA794289B/xx unknown
- 1979-08-22 EG EG517/79A patent/EG14104A/xx active
- 1979-08-23 FR FR7921256A patent/FR2435530A1/fr active Granted
- 1979-08-28 BR BR7905516A patent/BR7905516A/pt not_active IP Right Cessation
- 1979-09-03 GB GB7930446A patent/GB2032594B/en not_active Expired
- 1979-09-04 DE DE2935707A patent/DE2935707C2/de not_active Expired
- 1979-09-05 JP JP11303779A patent/JPS5538995A/ja active Granted
- 1979-09-06 MX MX179197A patent/MX151937A/es unknown
- 1979-09-07 SU SU792809602A patent/SU1082328A3/ru active
-
1984
- 1984-12-30 MY MY367/84A patent/MY8400367A/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2591789A (en) * | 1948-06-24 | 1952-04-08 | Brassert & Co | Apparatus for reducing metallic oxides |
US2999748A (en) * | 1958-11-27 | 1961-09-12 | Elektrokemisk As | Process of reducing molded bodies comprising metallic oxides |
US3850616A (en) * | 1973-10-29 | 1974-11-26 | Armco Steel Corp | Inert gas seal for product discharge from a shaft furnace |
Also Published As
Publication number | Publication date |
---|---|
SU1082328A3 (ru) | 1984-03-23 |
DE2935707C2 (de) | 1986-07-17 |
DE2935707A1 (de) | 1980-03-20 |
JPS5756528B2 (fr) | 1982-11-30 |
AU526797B2 (en) | 1983-02-03 |
GB2032594A (en) | 1980-05-08 |
AU4965279A (en) | 1980-03-13 |
US4188022A (en) | 1980-02-12 |
JPS5538995A (en) | 1980-03-18 |
ZA794289B (en) | 1980-09-24 |
CA1119813A (fr) | 1982-03-16 |
EG14104A (en) | 1983-03-31 |
MX151937A (es) | 1985-05-08 |
MY8400367A (en) | 1984-12-31 |
FR2435530B1 (fr) | 1984-02-24 |
BR7905516A (pt) | 1980-05-20 |
AR218996A1 (es) | 1980-07-15 |
GB2032594B (en) | 1982-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |