ES8300863A1 - Procedimiento para controlar un alto horno dotado de tres zonas para la produccion de gas reductor. - Google Patents
Procedimiento para controlar un alto horno dotado de tres zonas para la produccion de gas reductor.Info
- Publication number
- ES8300863A1 ES8300863A1 ES503004A ES503004A ES8300863A1 ES 8300863 A1 ES8300863 A1 ES 8300863A1 ES 503004 A ES503004 A ES 503004A ES 503004 A ES503004 A ES 503004A ES 8300863 A1 ES8300863 A1 ES 8300863A1
- Authority
- ES
- Spain
- Prior art keywords
- slags
- hot metal
- operating
- blast furnace
- zone controlled
- 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
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/04—Making slag of special composition
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
-
- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/06—Continuous processes
- C10J3/08—Continuous processes with ash-removal in liquid state
-
- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
-
- 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
- C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
-
- 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
- C10J3/723—Controlling or regulating the gasification process
-
- 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
- C10J3/74—Construction of shells or jackets
-
- 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
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0943—Coke
-
- 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
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- 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
- C10J2300/0956—Air or oxygen enriched air
-
- 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
- C10J2300/0953—Gasifying agents
- C10J2300/0966—Hydrogen
-
- 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
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1253—Heating the gasifier by injecting hot gas
-
- 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
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
-
- 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
- C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
-
- 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
- C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
PROCEDIMIENTO PARA CONTROLAR UN ALTO HORNO DOTADO DE TRES ZONAS PARA LA PRODUCCION DE GAS REDUCTOR. CONSISTE EN LA UTILIZACION DE TOBERAS AUXILIARES, MEDIOS PARA EL TRANSPORTE DE GASES E INSTALACIONES DE CONTROL, Y ES APLICABLE EN LOS ALTOS HORNOS DEDICADOS A LA PRODUCCION DE METAL CALIENTE (MBF) O A LOS DEDICADOS A LA PRODUCCION DE GASES DE ALTA ESPECIFICACION (GBF). EN AMBOS CASOS LA ZONA 1 ESTA FRENTE A LAS TOBERAS PRIMARIAS, SIENDO LA ZONA 2 EL RESTO DEL ATALAJE Y LA 3 LA QUE SE EXTIENDE POR ENCIMA DE LA CUBA. EXISTEN CUATRO CONJUNTOS DE TOBERAS: EN EL FONDO DEL ATALAJE (21, 43), POR DEBAJO DE LA CUBA (19, 45), ENCIMA DE LA CUBA (16, 47) Y CERCA DEL FONDO DE LA ZONA 3 (13, 49). POR LAS TOBERAS INFERIORES SE INTRODUCE UN GAS CONTENIENDO CO Y H O, QUE REACCIONA ENDOTERMICAMENTE CON CARBONO A TEMPERATURA SUPERIOR A 1.000<025>C, SE PRODUCE CO Y H , Y SE EXTRAE POR LAS TOBERAS SUPERIORES UN GAS CON CONTENIDO TERMICO DE 1.800 KILOCALORIAS/M , CONTENIENDO CO, H Y N Y ESTA EXENTO DE CO , H O YS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/158,709 US4381938A (en) | 1980-06-12 | 1980-06-12 | Multi-purpose zone controlled blast furnace and method of producing hot metal, gases and slags |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8300863A1 true ES8300863A1 (es) | 1982-11-01 |
ES503004A0 ES503004A0 (es) | 1982-11-01 |
Family
ID=22569354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES503004A Granted ES503004A0 (es) | 1980-06-12 | 1981-06-12 | Procedimiento para controlar un alto horno dotado de tres zonas para la produccion de gas reductor. |
Country Status (12)
Country | Link |
---|---|
US (1) | US4381938A (es) |
EP (1) | EP0042147A1 (es) |
JP (1) | JPS57500986A (es) |
KR (1) | KR830006438A (es) |
BR (1) | BR8108648A (es) |
CA (1) | CA1165568A (es) |
ES (1) | ES503004A0 (es) |
GB (1) | GB2090871B (es) |
SU (1) | SU1138036A3 (es) |
WO (1) | WO1981003668A1 (es) |
YU (1) | YU147781A (es) |
ZA (1) | ZA813975B (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8300288A (nl) * | 1983-01-26 | 1984-08-16 | Hengelmolen Eng | Oven voor het smelten van metalen. |
JPS62290841A (ja) * | 1986-06-10 | 1987-12-17 | Nippon Kokan Kk <Nkk> | 含クロム銑の製造方法 |
JPH01195226A (ja) * | 1988-01-29 | 1989-08-07 | Kobe Steel Ltd | 溶融還元方法 |
JPH01195225A (ja) * | 1988-01-29 | 1989-08-07 | Kobe Steel Ltd | 製鉄原料の溶解方法 |
US5198190A (en) * | 1990-12-21 | 1993-03-30 | Enviroscience, Inc. | Method of recycling hazardous waste |
US6030430A (en) * | 1998-07-24 | 2000-02-29 | Material Conversions, Inc. | Blast furnace with narrowed top section and method of using |
DE102008014044B4 (de) * | 2008-03-13 | 2013-04-04 | Grenzebach Bsh Gmbh | Verfahren zur Herstellung von silikatischen Schmelzen |
EA018553B1 (ru) | 2008-03-25 | 2013-08-30 | Агк Гласс Юроп | Способ ведения плавки в стеклоплавильной печи |
EA020084B1 (ru) * | 2008-03-25 | 2014-08-29 | Агк Гласс Юроп | Способ ведения плавки в стеклоплавильной печи |
JP4697340B2 (ja) * | 2009-05-29 | 2011-06-08 | Jfeスチール株式会社 | 高炉操業方法 |
LU92151B1 (en) * | 2013-02-15 | 2014-08-18 | Wurth Paul Sa | Blast furnace installation |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2790711A (en) * | 1957-04-30 | Molten | ||
FR535528A (fr) * | 1921-05-14 | 1922-04-15 | Perfectionnements aux hauts fourneaux | |
GB191764A (en) * | 1921-07-14 | 1923-01-15 | Richard Franchot | Improvements in processes for the manufacture of iron |
US1836005A (en) * | 1928-06-04 | 1931-12-15 | Harold R Berry | Process for the heat treatment and reduction of ores |
US2216727A (en) * | 1938-02-15 | 1940-10-08 | Little Inc A | Blast furnace process |
US2727816A (en) * | 1952-10-03 | 1955-12-20 | Raick Julien | Method for reduction-smelting of ferrous materials in a modified blast furnace with a specific combination of gaseous injection at two levels |
US2793946A (en) * | 1952-10-04 | 1957-05-28 | George R Paschal | Methods and apparatus for the production of iron |
US2795497A (en) * | 1953-04-23 | 1957-06-11 | Hans I Elvander | Method and apparatus for producing molten iron |
US2799576A (en) * | 1953-11-11 | 1957-07-16 | Strikfeldt & Co W | Process for operating shaft blast furnaces |
US2952533A (en) * | 1956-02-21 | 1960-09-13 | Cuscoleca Otwin | Method of operating a furnace in which the material treated is reduced |
US3375098A (en) * | 1964-07-22 | 1968-03-26 | Armco Steel Corp | Gaseous reduction of iron ores |
US3458307A (en) * | 1967-03-07 | 1969-07-29 | Armco Steel Corp | Method of blast furnace reduction of iron ores |
GB1218912A (en) * | 1968-01-04 | 1971-01-13 | British Iron Steel Research | Blast furnace operation |
BE748895A (en) * | 1970-04-13 | 1970-10-13 | Centre Rech Metallurgique | Control of blast furnace reducing zone |
NL157056B (nl) * | 1970-06-20 | 1978-06-15 | Nippon Kokan Kk | Werkwijze voor het reduceren van ijzererts in een hoogoven. |
BE760948A (en) * | 1970-12-28 | 1971-06-28 | Centre Rech Metallurgique | Hearth furnace operation |
FR2156456A1 (en) * | 1971-10-20 | 1973-06-01 | Nippon Kokan Kk | Blast furnace combined operation - by blowing a reducing gas and an oxygen enriched flux |
US3814404A (en) * | 1972-01-31 | 1974-06-04 | Kaiser Steel Corp | Blast furnace and method of operating the same |
US3928023A (en) * | 1972-01-31 | 1975-12-23 | Kaiser Steel Corp | Method of treating off gases from iron processes |
US3909446A (en) * | 1972-03-31 | 1975-09-30 | Nippon Kokan Kk | Method of manufacturing high quality reducing gas by two stage reforming processes |
JPS4994592A (es) * | 1973-01-16 | 1974-09-07 | ||
JPS5717038B2 (es) * | 1973-04-23 | 1982-04-08 | ||
US4052173A (en) * | 1974-07-29 | 1977-10-04 | Dynecology Incorporated | Simultaneous gasification of coal and pyrolysis of organic solid waste materials |
US4187672A (en) * | 1977-11-17 | 1980-02-12 | Rasor Associates, Inc. | Apparatus for converting carbonaceous material into fuel gases and the recovery of energy therefrom |
-
1980
- 1980-06-12 US US06/158,709 patent/US4381938A/en not_active Expired - Lifetime
-
1981
- 1981-06-08 WO PCT/US1981/000774 patent/WO1981003668A1/en active Application Filing
- 1981-06-08 GB GB8201465A patent/GB2090871B/en not_active Expired
- 1981-06-08 JP JP50225381A patent/JPS57500986A/ja active Pending
- 1981-06-08 BR BR8108648A patent/BR8108648A/pt unknown
- 1981-06-11 EP EP19810104506 patent/EP0042147A1/en not_active Withdrawn
- 1981-06-11 CA CA000379546A patent/CA1165568A/en not_active Expired
- 1981-06-11 YU YU147781A patent/YU147781A/xx unknown
- 1981-06-12 ES ES503004A patent/ES503004A0/es active Granted
- 1981-06-12 KR KR1019810002141A patent/KR830006438A/ko unknown
- 1981-06-12 ZA ZA813975A patent/ZA813975B/xx unknown
-
1982
- 1982-02-11 SU SU823390151A patent/SU1138036A3/ru active
Also Published As
Publication number | Publication date |
---|---|
EP0042147A1 (en) | 1981-12-23 |
YU147781A (en) | 1983-12-31 |
GB2090871A (en) | 1982-07-21 |
ZA813975B (en) | 1982-06-30 |
KR830006438A (ko) | 1983-09-24 |
SU1138036A3 (ru) | 1985-01-30 |
US4381938A (en) | 1983-05-03 |
JPS57500986A (es) | 1982-06-03 |
ES503004A0 (es) | 1982-11-01 |
WO1981003668A1 (en) | 1981-12-24 |
GB2090871B (en) | 1985-06-26 |
BR8108648A (pt) | 1982-04-27 |
CA1165568A (en) | 1984-04-17 |
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