EP0728222B1 - Kompakte pfanne zur behandlung von metallschmelze - Google Patents

Kompakte pfanne zur behandlung von metallschmelze Download PDF

Info

Publication number
EP0728222B1
EP0728222B1 EP95900816A EP95900816A EP0728222B1 EP 0728222 B1 EP0728222 B1 EP 0728222B1 EP 95900816 A EP95900816 A EP 95900816A EP 95900816 A EP95900816 A EP 95900816A EP 0728222 B1 EP0728222 B1 EP 0728222B1
Authority
EP
European Patent Office
Prior art keywords
ladle
immersion
ladle according
treatment
compartment
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 - Lifetime
Application number
EP95900816A
Other languages
English (en)
French (fr)
Other versions
EP0728222A1 (de
Inventor
Isabelle Ventre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novelis Inc Canada
Original Assignee
Pechiney Rhenalu SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pechiney Rhenalu SAS filed Critical Pechiney Rhenalu SAS
Publication of EP0728222A1 publication Critical patent/EP0728222A1/de
Application granted granted Critical
Publication of EP0728222B1 publication Critical patent/EP0728222B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/066—Treatment of circulating aluminium, e.g. by filtration
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • C22B9/055—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ while the metal is circulating, e.g. combined with filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating

Definitions

  • the invention relates to a gas treatment bag for metal liquid, especially aluminum or its alloys but also magnesium or its alloys, compact and having thermal performance or others improved.
  • This treatment is usually carried out by blowing a gas suitable, for example of the Ar type containing a few percent of chlorine, to using a rotor immersed in the liquid metal itself contained in a processing pocket.
  • a gas suitable for example of the Ar type containing a few percent of chlorine
  • the pocket can thus serve as a ladle.
  • a pocket has one or more treatment compartments, each of them containing a gas insufflation rotor, the latter being unable to treat only a determined volume of liquid metal; often compartments are two in number.
  • the pocket can also be fitted with a adjoining outlet compartment.
  • the bags can be heated using walls or lids heated, but such a device, if it allows pockets compact, has the disadvantage of having a yield insufficient thermal, to be ineffective and to give strong gradients temperature in the liquid metal.
  • the heating covers can cause increased pollution of the liquid metal surface by oxidation and formation of dross. Maintenance and cleaning are also important.
  • heating can be carried out using a block of graphite immersed in liquid metal; in the block are inserted heating tubes.
  • Such a device gives insufficient heating efficient, presents problems of maintenance and quality of the metal due to the use of graphite and has a random lifetime also linked to the use of graphite.
  • the heating of a treatment compartment can also be carried out at using a single immersion heater comprising an immersed heating part in liquid metal and an emerging riser for connections and handling.
  • a single immersion heater comprising an immersed heating part in liquid metal and an emerging riser for connections and handling.
  • Such an immersion heater is generally consisting, in its heating part, of an embedded electrical resistance in a refractory substance that is a good thermal conductor and insulator electric the whole being contained in a sheath also good conductor thermal resistance to liquid metal.
  • This sheath is advantageously in sintered ceramic, for example in sialon, which resists Al well liquid or its alloys.
  • the immersion heaters usually used in this app have a large diameter usually around at least 110 at 200 mm.
  • the pocket comprises a treatment compartment and an outlet compartment, the treatment compartment comprising a single immersion heater and gas introduction using nozzles located in the wall.
  • immersion heaters of this type provide heating efficient with good thermal efficiency.
  • Pockets equipped with rotor and this type of high immersion heaters diameter can be operated in different ways.
  • the Applicant has sought to resolve the problems of homogeneity and control of the temperature of the bag due to the use of the type of immersion heater described above and operating problems and size of the pocket also linked to the use of this type of immersion heater.
  • the invention is a bag for the continuous treatment of liquid metal, comprising one or more compartments, each treatment compartment comprising a device for introducing process gas, characterized in that each said processing compartment further comprises at least a small diameter immersion heater with a high unit power.
  • the bag is particularly suitable for the treatment of aluminum or its alloys, but also magnesium or its alloys.
  • the immersion heater is small in diameter and powerful important, which results in a dissipated power per unit area more importantly, it is unexpected not to note any burn of the metal.
  • the immersion heaters and the gas introduction device are therefore submerged and installed simultaneously in the pocket during operation, which thus avoids handling them with each new casting.
  • a simple device can lift all of the immersion heaters, or even rotors, to completely clear the surface of the bath for occasional cleaning.
  • the treatment is generally carried out on parade on raw liquid metal circulating continuously in the pocket, coming from an installation of processing, the treated metal leaving the pocket to be directly cast in different forms: plates, billets, strips, molded parts, etc ...
  • the treatment gas is generally an inert gas with respect to the metal treated, for example argon, which can however be added with a gas reagent, for example chlorine, as is well known to those skilled in the art job.
  • a gas reagent for example chlorine
  • the device of the invention is particularly useful for ensuring maintaining or warming up the bag for treatments continuous; it is likewise well suited to batch processing.
  • the bag is generally of large capacity, containing several tons of liquid metal, and may comprise one or preferably several processing compartments themselves, each of which is equipped with gas introduction device, for example immersed rotors and several immersion heaters (generally two or more). She can also have an outlet compartment that allows only metal to flow clean not polluted by any dross from the treatment or surface oxidation of the molten metal during processing. But the invention applies more generally to all types of pockets, including including those of small dimensions or test pockets, with the same benefits.
  • the immersion heaters used in the invention are of the resistance type electric embedded in a refractory and protected by a sheath; they include, like those known from the prior art, a heating part immersed in the liquid metal enhanced with a non-heating extension and not submerged allowing electrical connections and handling; their heating part is covered with a sheath advantageously in sintered ceramic, for example alumina, zirconia, Alon, sialon, oxynitride mixed (of the MgAlON type), nitride, boride, etc., which resists well liquid aluminum and has excellent thermal conductivity compared to those of the prior art, however they are of a very small footprint for equivalent power.
  • sintered ceramic for example alumina, zirconia, Alon, sialon, oxynitride mixed (of the MgAlON type), nitride, boride, etc.
  • the heating part prefferably covers the entire height of the liquid metal bath.
  • the immersion heaters can be installed nearby (some centimeters) from the inside of the pocket walls without harming temperature uniformity of the liquid metal, including during transitional periods. By grouping the immersion heaters in one pocket the along the same wall, problems of maintenance and cleaning.
  • the outlet compartment is equipped at least one immersion heater of this type, the temperature of the metal there finding it can thus be brought precisely to the desired value. This significantly improves the thermal quality of the liquid metal, particularly during transitional periods of maintenance or implementation temperature and avoids the troubles and risks of freezing at the start of casting.
  • the immersion heaters are permanently installed in the pockets during periods of operation; however they can be fixed on a simple lifting device, preferably motorized and permanently installed on the pocket, so as to remove or handle them easily to carry out ladle maintenance operations, skimming and scouring of the bath surface.
  • Improvements can also be made using said lifting device for simultaneously lifting the rotor and the immersion heaters, or by installing said rotor on the same frame or trap than immersion heaters.
  • Fig. 1 illustrates a pocket according to the invention comprising a single processing compartment and an outlet compartment.
  • the enclosure (1) of the pocket which has a single compartment treatment (2) separated by a partition (3) from the outlet compartment (4) communicating from below with the treatment compartment (2).
  • the enclosure (1) may consist of an external metal casing and a internal refractory lining (not shown).
  • the pocket is supplied with (5) by the raw metal to be treated, while the treated metal leaves in (6) to be sunk.
  • Liquid metal the level of which is represented by (7), is treated with using a rotor device (8) comprising a pipe (9) for bringing the gas in the liquid metal (7). It is heated by a battery of immersion heaters (10) having their immersed heating part (11) and their extension (12) allowing, among other things, their electrical connection (13). Of even an immersion heater (14) is installed in the outlet compartment (4).
  • the immersion heaters (10, 14) are installed near the same wall of the pocket. But it is good obvious that they could be arranged differently if the need arises made you feel.
  • the pocket can advantageously include two (or more) compartments of treatment of type (2), in order to treat a higher metal flow rate. They usually operate in series, or according to any other arrangement compatible with operating constraints, and leading into the outlet compartment. Each of the compartments typically has a gas introduction device (rotor for example) and two immersion heaters which are generally sufficient to ensure control of the temperature while avoiding an excessive congestion of the interior space from the pocket.
  • a gas introduction device rotor for example
  • two immersion heaters which are generally sufficient to ensure control of the temperature while avoiding an excessive congestion of the interior space from the pocket.
  • a bag having a capacity of 4 t aluminum, or its alloys, and comprising two compartments of treatment and an outlet compartment in series was fitted with a rotor and two immersion heaters per treatment compartment and one immersion heater in the outlet compartment.
  • the immersion heaters are all identical, have a unit power of 10 kW, a total length 1 m, a heating length of 500 mm and an outside diameter of 28 mm heating part.
  • the maximum deviations of temperature does not exceed 5 ° C and the temperature of the compartment outlet do not deviate by more than 5 ° C from the pouring temperature; of plus the time separating two flows does not exceed 1 h.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Cookers (AREA)
  • Tunnel Furnaces (AREA)

Claims (11)

  1. Kompakte Pfanne zur kontinuierlichen Behandlung von Metallschmelze, bestehend aus einer oder mehreren Wannen (2, 4), darunter wahlweise eine Abflußwanne (4), wobei jede Behandlungswanne (2) eine versenkte Behandlungsgaseinleitungsvorrichtung (8) sowie einen Heizstab (10) aufweist, dadurch gekennzeichnet, daß jede Behandlungswanne (2) mindestens einen Heizstab (10) aufweist, dessen Durchmesser kleiner als 100 mm ist und dessen hohe spezifische Leistung mindestens 5 kW pro Meter versenkter Heizlänge (11) beträgt.
  2. Pfanne nach Anspruch 1, dadurch gekennzeichnet, daß die Metallschmelze aus Aluminium oder Aluminiumlegierungen oder aus Magnesium oder Magnesiumlegierungen besteht.
  3. Pfanne nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Durchmesser der Heizstäbe (10) kleiner als 40 mm, vorzugsweise kleiner als 30 mm ist.
  4. Pfanne nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Leistung der Heizstäbe (10) mindestens 10 kW und vorzugsweise 20 kW pro Meter versenkter Heizlänge beträgt.
  5. Pfanne nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Heizstäbe (10) mit Hüllen aus Sinterkeramik versehen sind, welche gut wärmeleitend und metallschmelzebeständig ist.
  6. Pfanne nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Heizstäbe (10) in der Nähe der Pfannenwände verteilt sind.
  7. Pfanne nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß in der Abflußwanne (4) ein Heizstab (10) vorgesehen ist.
  8. Pfanne nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Heizstäbe (10) auf einem Hebesystem montiert sind, welches unlösbar mit der Pfanne verbunden ist.
  9. Pfanne nach Anspruch 8, dadurch gekennzeichnet, daß das Hebesystem eine Zugangsklappe zur Schmelze aufweist, auf der die Heizstäbe befestigt sind.
  10. Pfanne nach einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, daß das Hebesystem die Gaseinleitungsvorrichtung (8) enthält.
  11. Pfanne nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Gaseinleitungsvorrichtung (8) einen versenkten Rotor aufweist.
EP95900816A 1993-11-12 1994-11-08 Kompakte pfanne zur behandlung von metallschmelze Expired - Lifetime EP0728222B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9313808 1993-11-12
FR9313808A FR2712217B1 (fr) 1993-11-12 1993-11-12 Poche de traitement de métal liquide de faible encombrement et de performances améliorées.
PCT/FR1994/001305 WO1995013402A1 (fr) 1993-11-12 1994-11-08 Poche de traitement de metal liquide de faible encombrement

Publications (2)

Publication Number Publication Date
EP0728222A1 EP0728222A1 (de) 1996-08-28
EP0728222B1 true EP0728222B1 (de) 1998-01-14

Family

ID=9453006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95900816A Expired - Lifetime EP0728222B1 (de) 1993-11-12 1994-11-08 Kompakte pfanne zur behandlung von metallschmelze

Country Status (9)

Country Link
US (1) US5494265A (de)
EP (1) EP0728222B1 (de)
JP (1) JP3790543B2 (de)
AU (1) AU680703B2 (de)
CA (1) CA2176136C (de)
DE (1) DE69407992T2 (de)
ES (1) ES2113724T3 (de)
FR (1) FR2712217B1 (de)
WO (1) WO1995013402A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217631B1 (en) 1996-07-17 2001-04-17 C. Edward Eckert Method and apparatus for treating molten aluminum
US6049067A (en) * 1997-02-18 2000-04-11 Eckert; C. Edward Heated crucible for molten aluminum
US5963580A (en) * 1997-12-22 1999-10-05 Eckert; C. Edward High efficiency system for melting molten aluminum
US6069910A (en) * 1997-12-22 2000-05-30 Eckert; C. Edward High efficiency system for melting molten aluminum
JP4248798B2 (ja) * 2002-02-14 2009-04-02 株式会社パイロテック・ジャパン インライン脱ガス装置
US6850551B1 (en) * 2003-08-04 2005-02-01 C. Edward Eckert Electric heater for molten aluminum
DE202007001448U1 (de) * 2007-01-26 2007-03-22 Strikowestofen Gmbh Vorrichtung zur kontinuierlichen Behandlung einer Metallschmelze
EP2113033B1 (de) * 2007-02-23 2012-05-23 Alcoa Inc. Anlage und verfahren zur verarbeitung linear geschmolzener metalle mithilfe eines salzreaktants in einem tiefbett-entgaser
WO2008118120A1 (en) * 2007-03-27 2008-10-02 Alcoa Inc. Heater assembly and method for molten metal processing
JP2010096401A (ja) * 2008-10-15 2010-04-30 Sanken Sangyo Co Ltd 非鉄金属溶解炉
KR102217883B1 (ko) * 2020-09-24 2021-02-18 한화솔루션 주식회사 연속 잉곳 성장 장치

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US372447A (en) * 1887-11-01 Charles batchbloe
US2408467A (en) * 1944-11-10 1946-10-01 Reconstruction Finance Corp Conditioning molten metal
US3724447A (en) * 1971-10-27 1973-04-03 Aluminum Co Of America Immersion heater
US4021026A (en) * 1974-12-23 1977-05-03 Union Carbide Corporation Protection for externally heated cast iron vessel used to contain a reactive molten metal
FR2514370B1 (fr) * 1981-10-14 1989-09-29 Pechiney Aluminium Dispositif pour le traitement, au passage, d'un courant de metal ou alliage liquide a base d'aluminium ou de magnesium
US4705260A (en) * 1982-06-04 1987-11-10 Republic Steel Corporation Furnace for heating and melting zinc
DE3512868A1 (de) * 1985-04-04 1986-10-09 W. Strikfeldt & Koch Gmbh, 5276 Wiehl Ofen, insbesondere schmelz- oder warmhalteofen fuer metall
US4961563A (en) * 1989-06-12 1990-10-09 Inco Alloys International, Inc. Tundish for ingot pouring
JP2981282B2 (ja) * 1990-11-28 1999-11-22 三井金属鉱業株式会社 金属濾過装置のドロス除去装置

Also Published As

Publication number Publication date
DE69407992D1 (de) 1998-02-19
FR2712217B1 (fr) 1995-12-22
ES2113724T3 (es) 1998-05-01
CA2176136C (fr) 2000-11-07
US5494265A (en) 1996-02-27
WO1995013402A1 (fr) 1995-05-18
EP0728222A1 (de) 1996-08-28
AU680703B2 (en) 1997-08-07
CA2176136A1 (fr) 1995-05-18
JP3790543B2 (ja) 2006-06-28
JPH09509218A (ja) 1997-09-16
FR2712217A1 (fr) 1995-05-19
DE69407992T2 (de) 1998-07-30
AU8148094A (en) 1995-05-29

Similar Documents

Publication Publication Date Title
CA2176136C (fr) Poche de traitement de metal liquide de faible encombrement
JP4248798B2 (ja) インライン脱ガス装置
EP0170600B1 (de) Chlorierungspfanne für Aluminiumlegierungen zur Abscheidung von Magnesium
EP0528025B1 (de) Kontinuierlicher schmelzofen für oxidgemenge, direkte hoch-frequenz-induktion verwendend, mit sehr kurzen raffinierzeiten und niedrigem energieverbrauch
CA1193096A (fr) Dispositif pour le traitement, au passage, d'un courant de metal ou alliage liquide a base d'aluminium ou de magnesium
EP1527213B1 (de) Verfahren und system zur kühlung einer elektrolysezelle für die herstellung von aluminium
CA2328768C (fr) Cuve d'electrolyse ignee pour la production d'aluminium par le procede hall-heroult comprenant des moyens de refroidissement
EP0169100B1 (de) Wandelektrode eines metallurgischen Gefässes in Kontakt mit geschmolzenem Metall
EP0875319B1 (de) Zwischengefäss mit mindestens einem Plasmabrenner für die Wiederaufheizung von geschmolzenen Metallen
EP0725840B1 (de) Filtrierpfanne für eine metallschmelze, mit einem filtermedium ausgerüstet und einer verbesserten heizungsanlage
FR2767081A1 (fr) Procede de rechauffage d'un metal liquide dans un repartiteur de coulee continue au moyen d'une torche a plasma, et repartiteur pour sa mise en oeuvre
EP0468832B1 (de) Ofen zum Halten der Temperatur und zur metallurgischen Behandlung
WO1996016193A1 (fr) Dispositif de degazage et de separation des inclusions dans un bain de metal liquide
RU2260074C1 (ru) Способ очистки ковшей для выливки и транспортировки алюминия
FR3166962A1 (fr) Installation de four pour métal liquide, avec chauffage électrique et brassage amélioré
WO2000003045A1 (fr) Procede de filtration en ligne d'un metal liquide et dispositif pour la mise en oeuvre de ce procede
FR3146672A1 (fr) Appareil et procede de production de silicium de purete 3n ou superieure par purification d’un silicium de purete 2n
WO2025064898A1 (en) System and method for immersion-based melting of aluminium metal and alloys
BE851926A (fr) Four electrique a resistance
BE861520A (fr) Perfectionnements aux recipients metallurgiques
CA2021303A1 (fr) Procede de chauffage d'un bain metallique
FR2851578A1 (fr) Dispositif de purification par degazage d'un metal liquide
BE628813A (de)
FR2800097A1 (fr) Procede de fabrication de metaux alcalino-terreux en four cylindrique mobile dans le plan vertical chauffe par l'effet joule dans des barreaux graphite places dans des encoches faites dans le creuset en beton refractaire
FR2811071A1 (fr) Four a thermoplongeurs electriques pour le chauffage a coeur de metal liquide non ferreux

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960523

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES FR GB IT NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19961216

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT NL

REF Corresponds to:

Ref document number: 69407992

Country of ref document: DE

Date of ref document: 19980219

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980402

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2113724

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

NLS Nl: assignments of ep-patents

Owner name: NOVELIS INC.

Effective date: 20080327

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: FR

Ref legal event code: CL

REG Reference to a national code

Ref country code: FR

Ref legal event code: AU

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20131127

Year of fee payment: 20

Ref country code: FR

Payment date: 20131118

Year of fee payment: 20

Ref country code: DE

Payment date: 20131127

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20131126

Year of fee payment: 20

Ref country code: BE

Payment date: 20131128

Year of fee payment: 20

Ref country code: ES

Payment date: 20131126

Year of fee payment: 20

Ref country code: NL

Payment date: 20131126

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69407992

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69407992

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20141108

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20141107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20141107

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20141109