DD274055A5 - Verfahren zur herstellung von geschmolzenem roheisen - Google Patents
Verfahren zur herstellung von geschmolzenem roheisen Download PDFInfo
- Publication number
- DD274055A5 DD274055A5 DD87310753A DD31075387A DD274055A5 DD 274055 A5 DD274055 A5 DD 274055A5 DD 87310753 A DD87310753 A DD 87310753A DD 31075387 A DD31075387 A DD 31075387A DD 274055 A5 DD274055 A5 DD 274055A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- gas
- degassing
- reactor
- iron
- melter gasifier
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 115
- 238000007872 degassing Methods 0.000 claims abstract description 70
- 239000003245 coal Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- 239000001301 oxygen Substances 0.000 claims abstract description 16
- 229910000805 Pig iron Inorganic materials 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract 2
- 239000010959 steel Substances 0.000 claims abstract 2
- 239000000571 coke Substances 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000533867 Fordia Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/463—Gasification of granular or pulverulent flues in suspension in stationary fluidised beds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/80—Other features with arrangements for preheating the blast or the water vapour
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/026—Dust removal by centrifugal forces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0983—Additives
- C10J2300/0996—Calcium-containing inorganic materials, e.g. lime
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1606—Combustion processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1869—Heat exchange between at least two process streams with one stream being air, oxygen or ozone
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1876—Heat exchange between at least two process streams with one stream being combustion gas
-
- 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
- C21B2100/42—Sulphur removal
-
- 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
- C21B2100/66—Heat exchange
-
- 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
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863644775 DE3644775A1 (de) | 1986-12-23 | 1986-12-23 | Verfahren zur herstellung von roheisen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD274055A5 true DD274055A5 (de) | 1989-12-06 |
Family
ID=6317410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD87310753A DD274055A5 (de) | 1986-12-23 | 1987-12-18 | Verfahren zur herstellung von geschmolzenem roheisen |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4857105A (ru) |
| JP (1) | JPS63255310A (ru) |
| KR (1) | KR880007747A (ru) |
| AT (1) | AT398783B (ru) |
| AU (1) | AU607729B2 (ru) |
| BR (1) | BR8707022A (ru) |
| DD (1) | DD274055A5 (ru) |
| DE (1) | DE3644775A1 (ru) |
| GB (1) | GB2199339B (ru) |
| IN (1) | IN168757B (ru) |
| IT (1) | IT1224408B (ru) |
| LU (1) | LU87077A1 (ru) |
| SE (1) | SE8704893L (ru) |
| SU (1) | SU1711677A3 (ru) |
| ZA (1) | ZA878869B (ru) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT394201B (de) * | 1989-02-16 | 1992-02-25 | Voest Alpine Ind Anlagen | Verfahren zur erzeugung von brennbaren gasen in einem einschmelzvergaser |
| DE4037977A1 (de) * | 1990-11-29 | 1992-06-11 | Voest Alpine Ind Anlagen | Verfahren zur herstellung von roheisen bzw. eisenschwamm |
| US5238486A (en) * | 1991-02-19 | 1993-08-24 | Kremenets Yury D | Method and furnace for production of liquid iron |
| GB2281311B (en) * | 1993-03-29 | 1996-09-04 | Boc Group Plc | Metallurgical processes and apparatus |
| GB9325418D0 (en) * | 1993-12-13 | 1994-02-16 | Boc Group Plc | Method and apparatus for producing iron |
| KR100910723B1 (ko) * | 2002-11-14 | 2009-08-05 | 주식회사 포스코 | 근접 고로간의 핫콜 중계장치 |
| US20050151307A1 (en) * | 2003-09-30 | 2005-07-14 | Ricardo Viramontes-Brown | Method and apparatus for producing molten iron |
| AT509865B1 (de) * | 2010-04-26 | 2011-12-15 | Siemens Vai Metals Tech Gmbh | Verfahren zur herstellung von roheisen oder flüssigen stahlvorprodukten |
| CN108485723B (zh) * | 2018-04-24 | 2021-06-08 | 东北大学 | 一种易燃易爆无组织放散煤气回收利用系统及工艺 |
| DE102023101121A1 (de) | 2023-01-18 | 2024-07-18 | Salzgitter Flachstahl Gmbh | Direktreduktionsvorrichtung zur Herstellung von Eisenschwamm und Verfahren zum Zuführen von Eisenerz enthaltenen Partikeln in den Reaktor einer derartigen Direktreduktionsvorrichtung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3414480A (en) * | 1965-10-01 | 1968-12-03 | Hydrocarbon Research Inc | Fractional vapor product absorption of fluidized lignite carbonization |
| US3661543A (en) * | 1969-11-26 | 1972-05-09 | Exxon Research Engineering Co | Fluid coking process incorporating gasification of product ore |
| DE2931472A1 (de) * | 1978-09-18 | 1980-03-27 | Ford Werke Ag | Verfahren zur vergasung von kohle |
| DE2843303C2 (de) * | 1978-10-04 | 1982-12-16 | Korf-Stahl Ag, 7570 Baden-Baden | Verfahren und Anlage zur Erzeugung von flüssigem Roheisen und Reduktionsgas in einem Einschmelzvergaser |
| US4316739A (en) * | 1979-07-16 | 1982-02-23 | Midrex Corporation | Method for producing molten iron |
| US4248626A (en) * | 1979-07-16 | 1981-02-03 | Midrex Corporation | Method for producing molten iron from iron oxide with coal and oxygen |
| GB2116580B (en) * | 1982-03-12 | 1985-04-11 | British Gas Corp | Gasifying coal in fixed bed ash-slagging gasifier |
| AT376243B (de) * | 1983-01-19 | 1984-10-25 | Voest Alpine Ag | Verfahren zum schmelzen von zumindest teilweise reduziertem eisenerz |
| JPS6169910A (ja) * | 1984-09-12 | 1986-04-10 | Kobe Steel Ltd | 鉄鉱石の流動層還元方法 |
| AT380697B (de) * | 1984-11-07 | 1986-06-25 | Voest Alpine Ag | Verfahren zum schmelzen von zumindest teilweise reduziertem eisenerz und vorrichtung zur durchfuehrung dieses verfahrens |
| DE3503493A1 (de) * | 1985-01-31 | 1986-08-14 | Korf Engineering GmbH, 4000 Düsseldorf | Verfahren zur herstellung von roheisen |
| DE3504346C2 (de) * | 1985-02-06 | 1986-11-27 | Korf Engineering GmbH, 4000 Düsseldorf | Verfahren und Vorrichtung zur Erzeugung von Eisenschwammpartikeln und flüssigem Roheisen |
| DE3737271A1 (de) * | 1986-12-23 | 1988-07-07 | Korf Engineering Gmbh | Einschmelzvergaser |
-
1986
- 1986-12-23 DE DE19863644775 patent/DE3644775A1/de active Granted
-
1987
- 1987-11-19 GB GB8727079A patent/GB2199339B/en not_active Expired - Fee Related
- 1987-11-26 ZA ZA878869A patent/ZA878869B/xx unknown
- 1987-11-30 IN IN935/CAL/87A patent/IN168757B/en unknown
- 1987-12-08 SE SE8704893A patent/SE8704893L/xx not_active Application Discontinuation
- 1987-12-10 AU AU82298/87A patent/AU607729B2/en not_active Expired - Fee Related
- 1987-12-14 SU SU874203825A patent/SU1711677A3/ru active
- 1987-12-15 US US07/133,054 patent/US4857105A/en not_active Expired - Fee Related
- 1987-12-16 LU LU87077A patent/LU87077A1/fr unknown
- 1987-12-17 AT AT0333487A patent/AT398783B/de not_active IP Right Cessation
- 1987-12-18 DD DD87310753A patent/DD274055A5/de not_active IP Right Cessation
- 1987-12-23 BR BR8707022A patent/BR8707022A/pt unknown
- 1987-12-23 JP JP62326618A patent/JPS63255310A/ja active Pending
- 1987-12-23 IT IT23187/87A patent/IT1224408B/it active
- 1987-12-23 KR KR870014826A patent/KR880007747A/ko not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2199339A (en) | 1988-07-06 |
| AU8229887A (en) | 1988-06-23 |
| IN168757B (ru) | 1991-06-01 |
| SE8704893L (sv) | 1988-06-24 |
| GB2199339B (en) | 1990-08-08 |
| DE3644775C2 (ru) | 1988-11-17 |
| LU87077A1 (de) | 1988-04-05 |
| JPS63255310A (ja) | 1988-10-21 |
| GB8727079D0 (en) | 1987-12-23 |
| ZA878869B (en) | 1988-08-31 |
| BR8707022A (pt) | 1988-08-09 |
| IT1224408B (it) | 1990-10-04 |
| SU1711677A3 (ru) | 1992-02-07 |
| ATA333487A (de) | 1994-06-15 |
| DE3644775A1 (de) | 1988-07-14 |
| AU607729B2 (en) | 1991-03-14 |
| AT398783B (de) | 1995-01-25 |
| KR880007747A (ko) | 1988-08-29 |
| IT8723187A0 (it) | 1987-12-23 |
| SE8704893D0 (sv) | 1987-12-08 |
| US4857105A (en) | 1989-08-15 |
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