CA2366193A1 - Method and device for tapping molten metal from metallurgical vessels - Google Patents
Method and device for tapping molten metal from metallurgical vessels Download PDFInfo
- Publication number
- CA2366193A1 CA2366193A1 CA002366193A CA2366193A CA2366193A1 CA 2366193 A1 CA2366193 A1 CA 2366193A1 CA 002366193 A CA002366193 A CA 002366193A CA 2366193 A CA2366193 A CA 2366193A CA 2366193 A1 CA2366193 A1 CA 2366193A1
- Authority
- CA
- Canada
- Prior art keywords
- melting vessel
- gas
- molten metal
- molten
- tapping
- 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.)
- Abandoned
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4693—Skull removal; Cleaning of the converter mouth
Abstract
In order to impede entrainment or trailing of molten slag (1) while tapping molten metal (2) from a metallurgical vessel (5) having a tap hole (1) in the bottom (13) of said vessel, the molten slag (1) is blown away from the surface of the molten metal in the area of the tap hole (10) (2) by a gas jet (9) with high impulsive energy.
Description
_ CA 02366193 2001-10-10 Method and Device for Tapping Molten Metal from Metallurgical Vessels The invention relates to a method and a device for tapping molten metal, preferably molten steel, from metallurgical melting vessels, such as, for example, electric arc furnaces, via a tapping hole arranged in the melting vessel bottom wherein the molten metal is covered by molten slag at the time of tapping.
When carrying out thermal metallurgical processes on metals or their alloys in a metallurgical melting vessel, upon completion of these processes the metals are present in molten liquid form, covered by molten slag. In order to separate the molten metal from the molten slag, in known metallurgical melting vessels a tapping hole is arranged, if possible, at a corner part of the melting vessel bottom via which the molten metal is removed downwardly into a smelting crucible.
When the molten bath level drops, a swirl (vortex) is created at the tapping hole which extends at a slant to the melting vessel wall. When the molten bath level drops farther, a hollow vortex results in the end which entrains and swirls also parts of the molten slag floating on the molten metal so that the originally present separation between molten metal and molten slag is no longer present and the molten slag will be removed together with the molten metal through the tapping hole in the downward direction.
_ CA 02366193 2001-10-10 The oxidic slag transported in this way together with the molten metal into the smelting crucible entrains oxygen and leads, for example, to excess consumption of aluminum for the required deoxidation, of synthetic slag for the uptake of the oxides and calcium for the modification of the oxidic inclusions. The oxidation product alumina (A1203) worsens the casting properties, and the oxygen from Fe0 in the slag makes desulfurization and degassing more complicated.
On the other hand, for example, the clean steel treatment of a molten steel in the secondary metallurgy is considerably favored for a reduced slag contents in the molten metal, which plays an important role, in particular, for the production of "ultra-low carbon" steels for flat products.
In order to reduce the described entrainment of the slag during tapping of the molten metal, different methods and devices have become known.
It is known from DE 33 27 671 C2 to lower a cone-shaped flow body (with the cone tip facing downwardly) from above in the downward direction by means of a lifting device to a location closely above the tapping hole . With this measure the vortex now flows about the shaped body and is thus bound in such a way that swirling of the slag no longer takes place. This known process represents also a relatively expensive and complex method because the shaped body is _ subject to wear in the molten bath and, therefore, must be exchanged frequently.
When carrying out thermal metallurgical processes on metals or their alloys in a metallurgical melting vessel, upon completion of these processes the metals are present in molten liquid form, covered by molten slag. In order to separate the molten metal from the molten slag, in known metallurgical melting vessels a tapping hole is arranged, if possible, at a corner part of the melting vessel bottom via which the molten metal is removed downwardly into a smelting crucible.
When the molten bath level drops, a swirl (vortex) is created at the tapping hole which extends at a slant to the melting vessel wall. When the molten bath level drops farther, a hollow vortex results in the end which entrains and swirls also parts of the molten slag floating on the molten metal so that the originally present separation between molten metal and molten slag is no longer present and the molten slag will be removed together with the molten metal through the tapping hole in the downward direction.
_ CA 02366193 2001-10-10 The oxidic slag transported in this way together with the molten metal into the smelting crucible entrains oxygen and leads, for example, to excess consumption of aluminum for the required deoxidation, of synthetic slag for the uptake of the oxides and calcium for the modification of the oxidic inclusions. The oxidation product alumina (A1203) worsens the casting properties, and the oxygen from Fe0 in the slag makes desulfurization and degassing more complicated.
On the other hand, for example, the clean steel treatment of a molten steel in the secondary metallurgy is considerably favored for a reduced slag contents in the molten metal, which plays an important role, in particular, for the production of "ultra-low carbon" steels for flat products.
In order to reduce the described entrainment of the slag during tapping of the molten metal, different methods and devices have become known.
It is known from DE 33 27 671 C2 to lower a cone-shaped flow body (with the cone tip facing downwardly) from above in the downward direction by means of a lifting device to a location closely above the tapping hole . With this measure the vortex now flows about the shaped body and is thus bound in such a way that swirling of the slag no longer takes place. This known process represents also a relatively expensive and complex method because the shaped body is _ subject to wear in the molten bath and, therefore, must be exchanged frequently.
_ CA 02366193 2001-10-10 In DE 298 08 318 U1 it is finally suggested to arrange around the tapping hole in the melting vessel bottom gas-permeable, truncated cone-shaped porous plugs via which, from below, a gas - counter to the flow direction of the molten metal - is blown into the molten metal. With this measure the formation of a vortex above the tapping hole is to be prevented.
In U.S. 5,203,909 it is suggested to blow a gas jet, by means of a blowing lance, in the area of the tapping hole from above onto the molten slag by which the molten slag is pushed away from the metal surface. A disadvantage of this known method is the forcing of the molten slag into the molten metal, resulting, in particular, when a vortex is formed in the molten metal, in the risk of entrainment of slag.
Finally, EP-A-0 321 861 describes a tiltable metallurgical vessel in which above the tapping hole at the inner side of the sidewall at least one blowing device, preferably a burner, is provided by which the molten slag can be blown away from the surface of the molten metal. In addition it is provided to supply gas bubbles below the bath surface into the molten metal by means of a known porous plug device, arranged laterally in the melting vessel wall directly above the tapping hole, in order to also displace, inter alia, the molten slag from the surface of the molten metal. A
disadvantage of this known method is that the rising gas bubbles cause undesirable turbulences in the molten metal which favor slag entrainment.
In addition to the described entrainment of the molten slag as a result of its swirling with the molten metal there is also the _ CA 02366193 2001-10-10 possibility of a direct contact of the molten slag with the tapping hole. This trailing slag flow will result when during tilting back, in the case of a tiltable metallurgical melting vessel, for example, in the case of the electric arc furnace, despite a high tilting speed, the molten slag flows back quickly across and past the molten metal.
It is therefore an object of the invention to provide a tapping system which reduces with operational safety the slag entrainment and also the trailing slag flow with simple means without greater apparatus expenditure and without great operating costs.
This object is salved for metallurgical melting vessels with a tapping hole arranged in the melting vessel bottom with the characterizing features of claim 1.
With the feature according to the invention of arranging in immediate vicinity of the tapping hole a nozzle through which a neutral gas or a corresponding gas mixture can be blown into the metallurgical melting vessel in the form of a jet of high impulse energy, the molten slag is removed (blown away) from the molten metal surface in the area of the tapping hole. This ensures that, despite the formation of a vortex in the molten metal, slag entrainment can no longer take place and, moreover, a trailing slag flow is successfully prevented by this method with a correspondingly energy-rich gas jet.
The strength and the blow rate of the gas jet are controlled by a valve station which is connected with a compressed gas container or a compressed gas generating plant.
In U.S. 5,203,909 it is suggested to blow a gas jet, by means of a blowing lance, in the area of the tapping hole from above onto the molten slag by which the molten slag is pushed away from the metal surface. A disadvantage of this known method is the forcing of the molten slag into the molten metal, resulting, in particular, when a vortex is formed in the molten metal, in the risk of entrainment of slag.
Finally, EP-A-0 321 861 describes a tiltable metallurgical vessel in which above the tapping hole at the inner side of the sidewall at least one blowing device, preferably a burner, is provided by which the molten slag can be blown away from the surface of the molten metal. In addition it is provided to supply gas bubbles below the bath surface into the molten metal by means of a known porous plug device, arranged laterally in the melting vessel wall directly above the tapping hole, in order to also displace, inter alia, the molten slag from the surface of the molten metal. A
disadvantage of this known method is that the rising gas bubbles cause undesirable turbulences in the molten metal which favor slag entrainment.
In addition to the described entrainment of the molten slag as a result of its swirling with the molten metal there is also the _ CA 02366193 2001-10-10 possibility of a direct contact of the molten slag with the tapping hole. This trailing slag flow will result when during tilting back, in the case of a tiltable metallurgical melting vessel, for example, in the case of the electric arc furnace, despite a high tilting speed, the molten slag flows back quickly across and past the molten metal.
It is therefore an object of the invention to provide a tapping system which reduces with operational safety the slag entrainment and also the trailing slag flow with simple means without greater apparatus expenditure and without great operating costs.
This object is salved for metallurgical melting vessels with a tapping hole arranged in the melting vessel bottom with the characterizing features of claim 1.
With the feature according to the invention of arranging in immediate vicinity of the tapping hole a nozzle through which a neutral gas or a corresponding gas mixture can be blown into the metallurgical melting vessel in the form of a jet of high impulse energy, the molten slag is removed (blown away) from the molten metal surface in the area of the tapping hole. This ensures that, despite the formation of a vortex in the molten metal, slag entrainment can no longer take place and, moreover, a trailing slag flow is successfully prevented by this method with a correspondingly energy-rich gas jet.
The strength and the blow rate of the gas jet are controlled by a valve station which is connected with a compressed gas container or a compressed gas generating plant.
_ CA 02366193 2001-10-10 In order to prevent that undesirable components such as, for example, oxygen, can reach the molten metal together with the gas during the step of blowing gas in, a gas or gas mixture is used that behaves in a neutral way with respect to the further use and processing of the molten metal, such as, for example, a noble gas.
According to an advantageous configuration of the invention, the valve station is connected with a measuring and control system by which the starting point, the duration, and the intensity of the step of blowing gas in is automatically monitored and controlled.
As parameters for this automatic control - the height of the molten bath level in the metallurgical melting vessel, - the tilting angle and the tilting speed of the metallurgical melting vessel, - the tapping weight of the molten metal in the smelting crucible can be used by means of corresponding measuring devices. In this way, an optimal blowing-in of gas can be adjusted with high operational safety to the respective process situation during the tapping process.
Depending on the location of the tapping hole one or more nozzles are arranged in the area of the tapping hole such that reliably a complete blowing away of the slag layer from the metal surface is achieved.
The size, shape, number, and arrangement (in the lateral melting vessel wall and/or in the melting vessel cover, angle to the melting vessel bottom) of the nozzles are matched to the size and configuration of the metallurgical melting vessel as well as to the size of the bath surface, wherein the outlet openings of the nozzles can be arranged above and/or below the bath level.
Further advantages, details, and features of the invention will be explained in more detail in the following by means of embodiments shown in the schematic drawings.
It is shown in:
Fig. 1 a vertical section of the metallurgical melting vessel, Fig. 2 a detail of the metallurgical melting vessel in vertical section, Fig. 3 a block diagram for the device according to the invention.
In Fig. 1 a metallurgical melting vessel 5 at the point in time of tapping is illustrated. This embodiment shows a conventional electric arc furnace wherein the electrodes are not illustrated.
In the left corner a tapping hole 10 is arranged in the melting vessel bottom 13 through which the molten metal 2 flows with a pouring flow 6 into a Smelting crucible 11 arranged underneath the metallurgical melting vessel 5. The smelting crucible 11 is arranged on a crucible carriage 8 and the weighing cells 7 arranged thereon by which the amount of metal flowing into the smelting _ CA 02366193 2001-10-10 crucible 11 can be measured continuously. Above the molten metal 2 molten slag 1 floats into which the vortex 4 generated by the tapping process extends almost down to the bath level 15.
In immediate vicinity of the tapping hole 10 in the lateral melting vessel wall 12 two nozzles 3 are arranged whose nozzle outlet openings 14 are oriented from above and from below against the slag layer 1. The gas supply lines 25 (Fig. 3) through which the nozzles 3 are loaded with the gas to be blown in and also the valve station 16 (Fig. 3) as well as the measuring and control system 20 (Fig. 3) are not illustrated in Fig. 1.
Fig. 2 shows in an enlarged detail the tapping portion of the melting vessel 5 which is in a tilted position. In this embodiment a nozzle 3 is arranged almost parallel to the melting vessel bottom 13 and slightly upwardly slanted in the lateral melting vessel wall 12. As illustrated schematically in Fig. 2, the molten slag 1 above the molten metal 2 is forced back and away from the tapping hole 10 by the gas jet 9 to such an extent that the molten slag cannot come into contact with the vortex 4 and slag entrainment or trailing slag flow through the tapping hole 10 cannot take place.
In Fig. 3 it is illustrated in a block diagram in which way the melting vessel 5 is functionally connected with the valve station 16 and the measuring and control system 20. The measuring pulses which are generated by the weighing cells 7 as a result of the pouring flow 6 flowing into the smelting crucible 11 and the measuring pulses (tilting position, molten bath level) measured at the melting vessel 5 are supplied via the measuring lines 19, 22 into the measuring and control system 20. From this measuring and control system 20, control pulses required for controlling the compressed gas are then sent via the control line 21 to the valve station 16. The compressed gas, available at the valve station 16 by means of a compressed gas container 18 and/or a compressed gas generating plant 17 via the supply lines 23, 24, is then - via the valve station 16 controlled by means of the measuring and control system 20 - blown into the metallurgical melting vessel 5 through the gas supply line 25.
The invention is not limited to the metallurgical melting vessels (electric arc furnace/EAF) illustrated in the Figures but also useable for other metallurgical melting vessels in which the tapping hole is arranged at the bottom of the melting vessel and where there is a risk of slag entrainment or a trailing slag flow through the tapping hole during tapping.
According to an advantageous configuration of the invention, the valve station is connected with a measuring and control system by which the starting point, the duration, and the intensity of the step of blowing gas in is automatically monitored and controlled.
As parameters for this automatic control - the height of the molten bath level in the metallurgical melting vessel, - the tilting angle and the tilting speed of the metallurgical melting vessel, - the tapping weight of the molten metal in the smelting crucible can be used by means of corresponding measuring devices. In this way, an optimal blowing-in of gas can be adjusted with high operational safety to the respective process situation during the tapping process.
Depending on the location of the tapping hole one or more nozzles are arranged in the area of the tapping hole such that reliably a complete blowing away of the slag layer from the metal surface is achieved.
The size, shape, number, and arrangement (in the lateral melting vessel wall and/or in the melting vessel cover, angle to the melting vessel bottom) of the nozzles are matched to the size and configuration of the metallurgical melting vessel as well as to the size of the bath surface, wherein the outlet openings of the nozzles can be arranged above and/or below the bath level.
Further advantages, details, and features of the invention will be explained in more detail in the following by means of embodiments shown in the schematic drawings.
It is shown in:
Fig. 1 a vertical section of the metallurgical melting vessel, Fig. 2 a detail of the metallurgical melting vessel in vertical section, Fig. 3 a block diagram for the device according to the invention.
In Fig. 1 a metallurgical melting vessel 5 at the point in time of tapping is illustrated. This embodiment shows a conventional electric arc furnace wherein the electrodes are not illustrated.
In the left corner a tapping hole 10 is arranged in the melting vessel bottom 13 through which the molten metal 2 flows with a pouring flow 6 into a Smelting crucible 11 arranged underneath the metallurgical melting vessel 5. The smelting crucible 11 is arranged on a crucible carriage 8 and the weighing cells 7 arranged thereon by which the amount of metal flowing into the smelting _ CA 02366193 2001-10-10 crucible 11 can be measured continuously. Above the molten metal 2 molten slag 1 floats into which the vortex 4 generated by the tapping process extends almost down to the bath level 15.
In immediate vicinity of the tapping hole 10 in the lateral melting vessel wall 12 two nozzles 3 are arranged whose nozzle outlet openings 14 are oriented from above and from below against the slag layer 1. The gas supply lines 25 (Fig. 3) through which the nozzles 3 are loaded with the gas to be blown in and also the valve station 16 (Fig. 3) as well as the measuring and control system 20 (Fig. 3) are not illustrated in Fig. 1.
Fig. 2 shows in an enlarged detail the tapping portion of the melting vessel 5 which is in a tilted position. In this embodiment a nozzle 3 is arranged almost parallel to the melting vessel bottom 13 and slightly upwardly slanted in the lateral melting vessel wall 12. As illustrated schematically in Fig. 2, the molten slag 1 above the molten metal 2 is forced back and away from the tapping hole 10 by the gas jet 9 to such an extent that the molten slag cannot come into contact with the vortex 4 and slag entrainment or trailing slag flow through the tapping hole 10 cannot take place.
In Fig. 3 it is illustrated in a block diagram in which way the melting vessel 5 is functionally connected with the valve station 16 and the measuring and control system 20. The measuring pulses which are generated by the weighing cells 7 as a result of the pouring flow 6 flowing into the smelting crucible 11 and the measuring pulses (tilting position, molten bath level) measured at the melting vessel 5 are supplied via the measuring lines 19, 22 into the measuring and control system 20. From this measuring and control system 20, control pulses required for controlling the compressed gas are then sent via the control line 21 to the valve station 16. The compressed gas, available at the valve station 16 by means of a compressed gas container 18 and/or a compressed gas generating plant 17 via the supply lines 23, 24, is then - via the valve station 16 controlled by means of the measuring and control system 20 - blown into the metallurgical melting vessel 5 through the gas supply line 25.
The invention is not limited to the metallurgical melting vessels (electric arc furnace/EAF) illustrated in the Figures but also useable for other metallurgical melting vessels in which the tapping hole is arranged at the bottom of the melting vessel and where there is a risk of slag entrainment or a trailing slag flow through the tapping hole during tapping.
Claims (9)
1. Method for tapping molten metal, preferably molten steel, from metallurgical melting vessels such as, for example, electric arc furnaces, through a tapping hole arranged in the melting vessel bottom, wherein at the point in time of tapping the molten metal is covered by molten slag and during tapping the molten slag is removed (blown away) from the surface of the molten metal in the area of the tapping hole by means of at least one gas jet, which is blown through at least one nozzle into the metallurgical melting vessel, characterized in that in the area of the tapping hole (10) at least one gas jet (9) is directed at a slant from below and at least one gas jet (9) at a slant from above against the molten slag (1).
2. Method according to claim 1, characterized in that the strength and the blow rate of the gas jet (9) are controlled by a valve station (16).
3. Method according to claim 1 or 2, characterized in that the starting point, the duration, and the intensity of blowing in of the gas are automatically monitored and controlled by means of a measuring and control system (20).
4. Method according to claim 3, characterized in that at least one of the parameters, i.e., the height of the molten bath level (15) in the metallurgical melting vessel (5), the tilting angle and the tilting speed of the melting vessel (5), and/or the tapping weight of the molten metal (2) in the smelting crucible (11), are used for automatic control of blowing in of the gas by means of the measuring and control system (20).
5. Method according to one or several of the claims 1 to 4, characterized in that a neutral gas or a gas mixture, for example, a noble gas, which does not negatively affect further processing and use of the molten metal (2), is used for blowing in.
6. Metallurgical melting vessel (5) with a tapping hole (10) arranged in the melting vessel bottom (13) and with at least one nozzle (3) guided in the area of the tapping hole (10) through the lateral melting vessel wall (12) for blowing in the gas jet (9), for performing the method according to one or several of the preceding claims, characterized in that the nozzle outlet openings (14) of the nozzles (3) are arranged above and below the molten bath level (15).
7. Metallurgical melting vessel (5) according to claim 6 or 7, characterized in that the size, shape, number, and arrangement of the nozzles (3) are configured according to the size of the bath surface.
8. Metallurgical melting vessel (5) according to claim 6 or 7, characterized in that the nozzles (3) are connected via a valve station (16) with a compressed gas generating device (17) and/or a compressed gas container (18).
9. Metallurgical melting vessel (5) according to claim 8, characterized in that the valve station (16) is connected to a measuring and control system (20).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19916232A DE19916232A1 (en) | 1999-04-10 | 1999-04-10 | Method and device for tapping metal melts from metallurgical melting vessels |
| DE19916232.8 | 1999-04-10 | ||
| PCT/EP2000/003064 WO2000061823A1 (en) | 1999-04-10 | 2000-04-06 | Method and device for tapping molten metal from metallurgical vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2366193A1 true CA2366193A1 (en) | 2000-10-19 |
Family
ID=7904145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002366193A Abandoned CA2366193A1 (en) | 1999-04-10 | 2000-04-06 | Method and device for tapping molten metal from metallurgical vessels |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1183397B1 (en) |
| JP (1) | JP2002541329A (en) |
| AT (1) | ATE230802T1 (en) |
| BR (1) | BR0009418A (en) |
| CA (1) | CA2366193A1 (en) |
| DE (2) | DE19916232A1 (en) |
| ES (1) | ES2190964T3 (en) |
| MX (1) | MXPA01010238A (en) |
| SK (1) | SK14382001A3 (en) |
| TR (1) | TR200102932T2 (en) |
| TW (1) | TW538127B (en) |
| WO (1) | WO2000061823A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10014712A1 (en) * | 2000-03-24 | 2001-09-27 | Sms Demag Ag | Method and device for slag-free pouring of metal melts from metallurgical melting vessels |
| DE10117181C1 (en) * | 2001-04-05 | 2002-10-31 | Georgsmarienhuette Gmbh | Method and device for preventing slag from flowing along when tapping a molten steel |
| EP2803927A1 (en) * | 2013-05-17 | 2014-11-19 | Siemens VAI Metals Technologies GmbH | Metallurgical furnace vessel and method for operating the same |
| KR101918360B1 (en) | 2016-11-25 | 2018-11-13 | 한국수력원자력 주식회사 | Mold support device for uniform vitrified form and forming method uniform vitrified form using in the same |
| CN112091206B (en) * | 2019-05-31 | 2021-07-16 | 宝山钢铁股份有限公司 | Safe and reliable molten iron pretreatment automatic slag skimming method and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3743575A1 (en) * | 1987-12-22 | 1989-07-13 | Krupp Gmbh | METHOD FOR TAKING A METAL MELT AND METALLURGICAL TUBE FOR CARRYING OUT THE METHOD |
| US5203909A (en) * | 1991-10-15 | 1993-04-20 | Ltv Steel Company, Inc. | Method and apparatus for slag free casting |
| JPH0857599A (en) * | 1994-08-26 | 1996-03-05 | Nisshin Steel Co Ltd | Method and device for removing slag in tundish and continuous casting apparatus |
| JPH10176212A (en) * | 1996-12-18 | 1998-06-30 | Sumitomo Metal Ind Ltd | Method for preventing flow-out of slag at the time of discharging molten steel |
-
1999
- 1999-04-10 DE DE19916232A patent/DE19916232A1/en not_active Withdrawn
-
2000
- 2000-04-06 MX MXPA01010238A patent/MXPA01010238A/en not_active Application Discontinuation
- 2000-04-06 CA CA002366193A patent/CA2366193A1/en not_active Abandoned
- 2000-04-06 TR TR2001/02932T patent/TR200102932T2/en unknown
- 2000-04-06 DE DE50001056T patent/DE50001056D1/en not_active Expired - Fee Related
- 2000-04-06 WO PCT/EP2000/003064 patent/WO2000061823A1/en active IP Right Grant
- 2000-04-06 SK SK1438-2001A patent/SK14382001A3/en unknown
- 2000-04-06 ES ES00926821T patent/ES2190964T3/en not_active Expired - Lifetime
- 2000-04-06 BR BR0009418-8A patent/BR0009418A/en unknown
- 2000-04-06 JP JP2000610871A patent/JP2002541329A/en not_active Withdrawn
- 2000-04-06 AT AT00926821T patent/ATE230802T1/en not_active IP Right Cessation
- 2000-04-06 EP EP00926821A patent/EP1183397B1/en not_active Expired - Lifetime
- 2000-04-08 TW TW089106526A patent/TW538127B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| EP1183397A1 (en) | 2002-03-06 |
| WO2000061823B1 (en) | 2001-02-01 |
| MXPA01010238A (en) | 2002-05-06 |
| SK14382001A3 (en) | 2002-09-10 |
| ATE230802T1 (en) | 2003-01-15 |
| TR200102932T2 (en) | 2002-05-21 |
| DE19916232A1 (en) | 2000-10-12 |
| TW538127B (en) | 2003-06-21 |
| WO2000061823A1 (en) | 2000-10-19 |
| JP2002541329A (en) | 2002-12-03 |
| DE50001056D1 (en) | 2003-02-13 |
| BR0009418A (en) | 2002-01-02 |
| EP1183397B1 (en) | 2003-01-08 |
| ES2190964T3 (en) | 2003-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |