FR2456780A1 - Procede de fabrication de metal spongieux par reduction discontinue d'oxydes metalliques - Google Patents
Procede de fabrication de metal spongieux par reduction discontinue d'oxydes metalliquesInfo
- Publication number
- FR2456780A1 FR2456780A1 FR8008011A FR8008011A FR2456780A1 FR 2456780 A1 FR2456780 A1 FR 2456780A1 FR 8008011 A FR8008011 A FR 8008011A FR 8008011 A FR8008011 A FR 8008011A FR 2456780 A1 FR2456780 A1 FR 2456780A1
- Authority
- FR
- France
- Prior art keywords
- reduction
- reactors
- cooling reactor
- esp
- metal oxide
- 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- Withdrawn
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
- C21B13/04—Making spongy iron or liquid steel, by direct processes in retorts
-
- 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
-
- 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
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- 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
- Y02P10/20—Recycling
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)
- Powder Metallurgy (AREA)
Abstract
PROCEDE DE FABRICATION DE METAL SPONGIEUX, PAR REDUCTION DISCONTINUE D'OXYDES METALLIQUES, DANS UN SYSTEME OU DES LITS SEPARES DE MATERIAU METALLIFERE SONT TRAITES SIMULTANEMENT DANS UN REACTEUR DE REFROIDISSEMENT ET AU MOINS DEUX REACTEURS DE REDUCTION, EN UTILISANT UN GAZ REDUCTEUR COMPOSE ESSENTIELLEMENT DE CO ET H. ON STABILISE LE GAZ REDUCTEUR SORTANT DU REACTEUR DE REFROIDISSEMENT EN L'ALIMENTANT EN PARALLELE DANS LES REACTEURS DE REDUCTION. DE PREFERENCE LE GAZ, AVANT D'ENTRER DANS LES REACTEURS DE REDUCTION, EST CHAUFFE A AU MOINS 900C SANS COMBUSTION. CECI PEUT ETRE EFFECTUE EN CHAUFFANT D'ABORD LE GAZ A 800C PUIS EN LE FAISANT PASSER SUR UN CATALYSEUR. CECI REDUIT LA CONSOMMATION EN GAZ REDUCTEUR POUR UN POURCENTAGE DONNE DE LA METALLISATION DU METAL SPONGIEUX. LA COURBEA EST OBTENUE DANS UN PROCEDE CLASSIQUE ET LES COURBES B, C ET D DANS DES MODES DE REALISATION DE L'INVENTION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3369379A | 1979-04-26 | 1979-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2456780A1 true FR2456780A1 (fr) | 1980-12-12 |
Family
ID=21871905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8008011A Withdrawn FR2456780A1 (fr) | 1979-04-26 | 1980-04-09 | Procede de fabrication de metal spongieux par reduction discontinue d'oxydes metalliques |
Country Status (9)
Country | Link |
---|---|
AR (1) | AR219665A1 (fr) |
BR (1) | BR8002503A (fr) |
DD (1) | DD150225A5 (fr) |
ES (1) | ES8104422A1 (fr) |
FR (1) | FR2456780A1 (fr) |
IT (1) | IT1188928B (fr) |
MX (1) | MX154126A (fr) |
YU (1) | YU108380A (fr) |
ZM (1) | ZM4480A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5674308A (en) * | 1994-08-12 | 1997-10-07 | Midrex International B.V. Rotterdam, Zurich Branch | Spouted bed circulating fluidized bed direct reduction system and method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2219234A1 (fr) * | 1973-02-22 | 1974-09-20 | Fierro Esponja | |
FR2247541A1 (fr) * | 1973-10-16 | 1975-05-09 | Fierro Esponja |
-
1980
- 1980-04-09 FR FR8008011A patent/FR2456780A1/fr not_active Withdrawn
- 1980-04-21 YU YU108380A patent/YU108380A/xx unknown
- 1980-04-23 ZM ZM4480A patent/ZM4480A1/xx unknown
- 1980-04-24 BR BR8002503A patent/BR8002503A/pt unknown
- 1980-04-24 MX MX18207980A patent/MX154126A/es unknown
- 1980-04-24 IT IT4851180A patent/IT1188928B/it active
- 1980-04-25 AR AR28081380A patent/AR219665A1/es active
- 1980-04-25 DD DD80220710A patent/DD150225A5/de unknown
- 1980-04-25 ES ES490938A patent/ES8104422A1/es not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2219234A1 (fr) * | 1973-02-22 | 1974-09-20 | Fierro Esponja | |
FR2247541A1 (fr) * | 1973-10-16 | 1975-05-09 | Fierro Esponja |
Also Published As
Publication number | Publication date |
---|---|
BR8002503A (pt) | 1980-12-09 |
ES490938A0 (es) | 1981-04-16 |
IT1188928B (it) | 1988-01-28 |
YU108380A (en) | 1983-01-21 |
MX154126A (es) | 1987-05-21 |
AR219665A1 (es) | 1980-08-29 |
IT8048511A0 (it) | 1980-04-24 |
DD150225A5 (de) | 1981-08-19 |
ES8104422A1 (es) | 1981-04-16 |
ZM4480A1 (en) | 1981-09-21 |
IT8048511A1 (it) | 1981-10-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |