ES8105396A1 - Un metodo para reducir minerales metalicos desmenuzados en particulas - Google Patents
Un metodo para reducir minerales metalicos desmenuzados en particulasInfo
- Publication number
- ES8105396A1 ES8105396A1 ES492768A ES492768A ES8105396A1 ES 8105396 A1 ES8105396 A1 ES 8105396A1 ES 492768 A ES492768 A ES 492768A ES 492768 A ES492768 A ES 492768A ES 8105396 A1 ES8105396 A1 ES 8105396A1
- Authority
- ES
- Spain
- Prior art keywords
- sponge iron
- carbon
- specific gravity
- cooling zone
- containing gas
- 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
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
- C21B13/0073—Selection or treatment of the reducing gases
-
- 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
-
- 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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Manufacture Of Iron (AREA)
Abstract
PROCEDIMIENTO DE REDUCCION DE MINERALES DESMENUZABLES EN PARTICULAS. CONSTA DE LAS SIGUIENTES OPERACIONES: 1. ESTABLECER Y MANTENER UNA ZONA DE REDUCCION EN LA PARTE SUPERIOR DEL LECHO DE UN REACTOR DE EJE VERTICAL; EN LA PARTE INFERIOR SE ESTABLECE UNA ZONA DE ENFRIAMIENTO DE LAS PARTICULAS REDUCIDAS. 2. INTRODUCIR UN GAS REDUCTOR CALIENTE HACIENDO QUE CIRCULE A TRAVES DEL MINERAL DESMENUZADO. 3. ELIMINAR EL GAS REDUCTOR. 4. CIRCULACION DE UN GAS DE ENFRIAMIENTO QUE CONTIENE CARBONO. 5. INCORPORAR UN GAS DE COMPENSACION QUE CONTIENE CARBONO REGULANDO DE MANERA DIFINITIVA LA PROPORCION EN QUE SE INCORPORE EL GAS DE COMPENSACION. EL GAS RETIRADO DEL CIRCUITO DE ENFRIAMIENTO SE CALIENTA. Y SE COMBINA CON EL GAS REDUCTOR QUE SE INTRODUCE. EL GAS QUE ESCAPA DEL CIRCUITO DE ENFRIAMIENTO DE DESAHOGA DEL CONDUCTO EXTERIOR DESUES DE HABERSE ENFRIADO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/067,665 US4224057A (en) | 1979-08-20 | 1979-08-20 | Method for carburizing sponge iron |
Publications (2)
Publication Number | Publication Date |
---|---|
ES492768A0 ES492768A0 (es) | 1981-05-16 |
ES8105396A1 true ES8105396A1 (es) | 1981-05-16 |
Family
ID=22077547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES492768A Expired ES8105396A1 (es) | 1979-08-20 | 1980-06-25 | Un metodo para reducir minerales metalicos desmenuzados en particulas |
Country Status (18)
Country | Link |
---|---|
US (1) | US4224057A (es) |
JP (1) | JPS5818962B2 (es) |
BR (1) | BR8003887A (es) |
CA (1) | CA1149176A (es) |
DD (1) | DD151768A5 (es) |
DE (1) | DE3023121C2 (es) |
EG (1) | EG14430A (es) |
ES (1) | ES8105396A1 (es) |
FR (1) | FR2463815A1 (es) |
GB (1) | GB2058139A (es) |
GR (1) | GR69632B (es) |
IN (1) | IN152563B (es) |
IT (1) | IT1143923B (es) |
MA (1) | MA18865A1 (es) |
MX (1) | MX155373A (es) |
SE (1) | SE8004625L (es) |
SU (1) | SU963475A3 (es) |
ZA (1) | ZA803033B (es) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2084610B (en) * | 1980-09-29 | 1983-10-12 | Woods Jack L | Anodic oxidation of aluminium and aluminum alloys |
US4584016A (en) * | 1982-03-23 | 1986-04-22 | Hylsa, S.A. | Method for controlling metallization and carburization in the reduction of metal ores to sponge iron |
DE3317701C2 (de) * | 1983-05-16 | 1986-08-07 | Hylsa S.A., Monterrey, N.L. | Verfahren zum Betreiben eines Bewegtbett-Reduktionsreaktors mit vertikalem Schacht zum Reduzieren von Eisenerz zu Schwammeisen |
US4528030A (en) * | 1983-05-16 | 1985-07-09 | Hylsa, S.A. | Method of reducing iron ore |
DE3437913C2 (de) * | 1984-10-12 | 1987-05-07 | Korf Engineering GmbH, 4000 Düsseldorf | Verfahren und Vorrichtung zur Herstellung von Eisenschwamm und/oder flüssigem Roheisen |
US4897113A (en) * | 1985-09-23 | 1990-01-30 | Hylsa, S.A. | Direct reduction process in reactor with hot discharge |
US4734128A (en) * | 1985-09-23 | 1988-03-29 | Hylsa, S.A. | Direct reduction reactor with hot discharge |
US4702766A (en) * | 1986-03-21 | 1987-10-27 | Midrex International, B.V. Rotterdam, Zurich Branch | Method of increasing carbon content of direct reduced iron and apparatus |
US4752329A (en) * | 1986-03-21 | 1988-06-21 | Midrex International B.V. Rotterdam, Zurich Branch | Apparatus and method for increasing carbon content of hot directly reduced iron |
AT402938B (de) * | 1994-06-23 | 1997-09-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zur direktreduktion von verfahren und anlage zur direktreduktion von eisenoxidhältigem material eisenoxidhältigem material |
CN1995402B (zh) * | 2006-01-06 | 2011-11-16 | 伊尔技术有限公司 | 利用焦炉气等将氧化铁直接还原成金属铁的方法 |
US10316376B2 (en) | 2015-06-24 | 2019-06-11 | Midrex Technologies, Inc. | Methods and systems for increasing the carbon content of sponge iron in a reduction furnace |
US10508314B2 (en) | 2015-06-24 | 2019-12-17 | Midrex Technologies, Inc. | Methods and systems for increasing the carbon content of sponge iron in a reduction furnace |
JP2017082312A (ja) * | 2015-10-30 | 2017-05-18 | 株式会社神戸製鋼所 | 還元鉄の製造方法 |
DE102019217631B4 (de) * | 2019-11-15 | 2024-05-29 | Thyssenkrupp Steel Europe Ag | Verfahren zur Direktreduktion von Eisenerz |
DE102021122351A1 (de) * | 2021-08-30 | 2023-03-02 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung einer Eisenschmelze |
CN114622155B (zh) * | 2021-11-01 | 2023-06-30 | 杭州永磁集团有限公司 | 一种钐铁氮粉体的真空渗氮方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA508951A (en) * | 1955-01-11 | D. Pike Robert | Direct production of steel from oxides of iron | |
US2873183A (en) * | 1954-07-07 | 1959-02-10 | Kenneth B Ray And The St Trust | Continuous iron ore reduction process |
US3136624A (en) * | 1961-05-24 | 1964-06-09 | Pullman Inc | Method for reducing metal oxides |
DE1201377B (de) * | 1961-11-23 | 1965-09-23 | Huettenwerk Oberhausen Ag | Verfahren und Anlage zur Herstellung von Eisen-schwamm aus Eisenerz in einem Reduktions-schacht mittels Reduktionsgas |
US3375098A (en) * | 1964-07-22 | 1968-03-26 | Armco Steel Corp | Gaseous reduction of iron ores |
US3369888A (en) * | 1965-06-01 | 1968-02-20 | Armco Steel Corp | Treatment and reduction of pelletized iron ores |
US3551138A (en) * | 1968-03-14 | 1970-12-29 | Exxon Research Engineering Co | Iron ore reduction process |
US3782920A (en) * | 1970-04-29 | 1974-01-01 | Dravo Corp | Process for direct reduction of iron oxide compacts |
GB1347785A (en) * | 1970-07-15 | 1974-02-27 | Fierro Esponja | Method of reducing particulate metal ores |
US3765872A (en) * | 1970-12-16 | 1973-10-16 | Fierro Esponja | Method and apparatus for the gaseous reduction of iron ore to sponge iron |
US3748120A (en) * | 1971-04-15 | 1973-07-24 | Midland Ross Corp | Method of and apparatus for reducing iron oxide to metallic iron |
US4046557A (en) * | 1975-09-08 | 1977-09-06 | Midrex Corporation | Method for producing metallic iron particles |
US4049440A (en) * | 1975-05-19 | 1977-09-20 | Midrex Corporation | Method for producing metallic iron pellets |
US4054444A (en) * | 1975-09-22 | 1977-10-18 | Midrex Corporation | Method for controlling the carbon content of directly reduced iron |
US4150972A (en) * | 1977-11-17 | 1979-04-24 | Fierro Esponja, S.A. | Controlling carburization in the reduction of iron ore to sponge iron |
-
1979
- 1979-08-20 US US06/067,665 patent/US4224057A/en not_active Expired - Lifetime
-
1980
- 1980-05-21 ZA ZA00803033A patent/ZA803033B/xx unknown
- 1980-05-22 GB GB8016882A patent/GB2058139A/en active Granted
- 1980-05-27 FR FR8011714A patent/FR2463815A1/fr active Granted
- 1980-05-28 GR GR62068A patent/GR69632B/el unknown
- 1980-05-29 CA CA000352976A patent/CA1149176A/en not_active Expired
- 1980-05-30 MX MX182576A patent/MX155373A/es unknown
- 1980-06-02 MA MA19063A patent/MA18865A1/fr unknown
- 1980-06-06 IN IN675/CAL/80A patent/IN152563B/en unknown
- 1980-06-20 IT IT49026/80A patent/IT1143923B/it active
- 1980-06-20 DE DE3023121A patent/DE3023121C2/de not_active Expired
- 1980-06-23 BR BR8003887A patent/BR8003887A/pt unknown
- 1980-06-23 SU SU802937832A patent/SU963475A3/ru active
- 1980-06-23 SE SE8004625A patent/SE8004625L/ not_active Application Discontinuation
- 1980-06-23 JP JP55085051A patent/JPS5818962B2/ja not_active Expired
- 1980-06-24 DD DD80222095A patent/DD151768A5/de unknown
- 1980-06-25 ES ES492768A patent/ES8105396A1/es not_active Expired
- 1980-06-28 EG EG384/80A patent/EG14430A/xx active
Also Published As
Publication number | Publication date |
---|---|
SE8004625L (sv) | 1981-02-21 |
GB2058139A (en) | 1981-04-08 |
CA1149176A (en) | 1983-07-05 |
FR2463815A1 (fr) | 1981-02-27 |
MA18865A1 (fr) | 1980-12-31 |
BR8003887A (pt) | 1981-04-22 |
SU963475A3 (ru) | 1982-09-30 |
US4224057A (en) | 1980-09-23 |
JPS5818962B2 (ja) | 1983-04-15 |
ES492768A0 (es) | 1981-05-16 |
ZA803033B (en) | 1981-05-27 |
JPS5629610A (en) | 1981-03-25 |
GB2058139B (es) | 1900-01-01 |
IN152563B (es) | 1984-02-11 |
FR2463815B1 (es) | 1985-03-29 |
DD151768A5 (de) | 1981-11-04 |
DE3023121C2 (de) | 1985-06-13 |
GR69632B (es) | 1982-07-06 |
IT8049026A0 (it) | 1980-06-20 |
IT1143923B (it) | 1986-10-29 |
DE3023121A1 (de) | 1981-03-26 |
EG14430A (en) | 1984-06-30 |
MX155373A (es) | 1988-02-24 |
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