[go: up one dir, main page]

EP2188814A2 - Procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha - Google Patents

Procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha

Info

Publication number
EP2188814A2
EP2188814A2 EP08786183A EP08786183A EP2188814A2 EP 2188814 A2 EP2188814 A2 EP 2188814A2 EP 08786183 A EP08786183 A EP 08786183A EP 08786183 A EP08786183 A EP 08786183A EP 2188814 A2 EP2188814 A2 EP 2188814A2
Authority
EP
European Patent Office
Prior art keywords
ppm
oxide
oxalic acid
surfactant
carried out
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.)
Granted
Application number
EP08786183A
Other languages
German (de)
English (en)
Other versions
EP2188814B1 (fr
Inventor
Rainer Gassen
Christoph Stiepani
Horst-Otto Bertholdt
Bertram Zeiler
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.)
Areva GmbH
Original Assignee
Areva NP GmbH
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 Areva NP GmbH filed Critical Areva NP GmbH
Publication of EP2188814A2 publication Critical patent/EP2188814A2/fr
Application granted granted Critical
Publication of EP2188814B1 publication Critical patent/EP2188814B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
    • G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
    • G21F9/004—Decontamination of the surface of objects with chemical or electrochemical processes of metallic surfaces
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G21F9/12—Processing by absorption; by adsorption; by ion-exchange
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids

Definitions

  • the invention relates to methods for the decontamination of surface contaminated with alpha emitters of nuclear facilities, such as decontamination of the surface of components of the coolant system of nuclear power plants, to which reference is made below by way of example.
  • radioactive oxide layers are formed on the internal surfaces of components of the coolant system, such as pipes, pumps, steam generator pipes, which must be removed in the event of the decommissioning of a decommissioned nuclear power plant in order to reduce the radioactive radiation of the components to tolerable levels.
  • the removal of the oxide layer on component surfaces is effected, for example, by a two-stage decontamination process in which the oxide layer is pretreated in the first stage with a strong oxidizing agent such as potassium permanganate or permanganic acid and in a second step the oxide layer is dissolved with a cleaning solution containing one or more complexing acids.
  • the spent cleaning solution containing the constituents of the oxide layer in dissolved form is either evaporated to a residual amount or passed through ion exchangers to remove the ionic form of the oxide layer from the cleaning solution. Exhausted ion exchange material and the residual amount of tion solution are fed in an appropriate form an intermediate or final storage.
  • EP 753196 Bl discloses a method for disposal of an aqueous cleaning solution previously used to remove ferritic deposits.
  • the cleaning solution comprises an organic acid as well as ferritic deposits dissolved in the form of iron complexes.
  • the disclosed process makes it possible to convert the entire organic acid into CO2 and water by means of a cyclic process. After carrying out this cyclic process, only a relatively small amount of iron salt remains in the solution, which can be removed with the aid of a cation exchanger. Since the cyclic process presupposes the presence of iron ions in the cleaning solution, they are initially supplied to the cleaning solution, provided that they are not already present in sufficient concentration as a result of the preceding decontamination.
  • gamma adhesives such as Cr-51 and Co-60 are detected.
  • These nuclides are to a large extent present, for example, incorporated in an oxide layer of a component, in the form of their oxides, these being from the active substances of conventional decontamination solutions.
  • complexing acids are relatively easily dissolved.
  • transuranic elements like Am-241 are partially solved.
  • oxide particles which are not visible to the naked eye and which contain alpha emitters or are bound to the alpha emitters remain. These particles only adhere loosely to the surface of the components previously freed of their oxide layer, so that the alpha emitters can be partially wiped off with a cloth, for example during a wipe test.
  • gamma-emitting particles may also be present on a component surface.
  • the components of the coolant system are to be recycled, which is only possible if the radioactivity measured on a component is lower than the specified limit values with regard to gamma and beta radiation as well as alpha radiation.
  • US 2003/0172959 A1 discloses a process for surface decontamination.
  • the cleaning solution proposed for this purpose contains a surfactant as wetting agent and a ketoamine as active cleaning component.
  • the cleaning solution may additionally be provided with an acid, for example oxalic acid.
  • the used cleaning solution is drained and collected in a suitable container.
  • the spent cleaning solution is now an unspecified, commonplace Disposal procedures, such as evaporation available.
  • the surfaces of the components are treated according to claim 1 with an aqueous solution containing oxalic acid in addition to a cationic and / or zwitterionic surfactant.
  • Such treatment will be carried out following a decontamination procedure, with the exception of the
  • the particles may consist of the oxide of an alpha emitter. It can also be other particles adhere to the surface of alpha emitters.
  • the proportion of alpha-emitting nuclides (in the following abbreviated to alphanuclides) can be lowered so far that the surfaces have an activity of less than 0.1 Bq / cm 2 .
  • the ratio of gamma to alpha decay results in values that often exceed a threshold of 10 significantly. If this limit value is detected for the components, their release, for example for recycling, requires only measurements of the gamma radiation, which is possible with simple devices and in a short time. If a limit of 10 can not be established, time-consuming and complex measurements of the alpha radiation must be carried out and the personnel must be monitored in a time- and cost-intensive manner by means of elimination analyzes for the incorporation of alphanuclides.
  • the particles in question adhering to a component surface pass into the solution, but also Gamoma activity present on the surface is reduced.
  • the aqueous solution is passed through a cation exchanger before it is optimally subjected to a further treatment, for example by evaporation, or reused.
  • a further treatment for example by evaporation, or reused.
  • the bound to the surfactants alpha activity passes to the ion exchanger.
  • the oxalic acid remains in the solution and can be removed, for example, by the method disclosed in EP 0 753 196.
  • the method according to the invention is carried out following a generally known decontamination method aimed at the removal of oxide layers, wherein it is particularly advantageous if oxalic acid is already used in this method.
  • the addition of oxalic acid is then unnecessary or at least only to a lesser extent required.
  • To remove the particles dissolved out of the oxide layers mainly metal ions, at least part of the solution is passed over an ion exchanger, preferably via a cation exchanger.
  • the appropriate oxalic acid concentration depends i.a. However, depending on the nature and thickness of the oxide layers to be removed, it should in any case be at least 250 ppm.
  • the upper limit of the oxalic acid concentration is 15,000 ppm. Other levels are barely associated with a significant effect.
  • a surfactant which is particularly suitable for carrying out the process according to the invention must, on the one hand, be effective in cooperation with oxalic acid with regard to the detachment of particles from surfaces. On the other hand, it must mediate the binding of the particles to a cation exchanger, so that they can be removed from the solution at least in part.
  • amino acids of the general formula HOOC-R-NH 2 having an aliphatic radical of 4 to 24 carbon atoms and N-oxides of the general formula R 1 - (NO) (R 2 ) (R 3) have been found, in the latter Case as aliphatic radicals Rl having 4 to 24 carbon atoms and R2 and R3 are each having 1 to 10 carbon atoms. Particular preference is given here to N-oxides in which R 1 comprises 12 to 24 C atoms and R 2 and R 3 comprise 1 to 3 C atoms.
  • dimethyl-octadecylamine-N-oxide has emerged as the best-acting surfactant.
  • a treatment at elevated temperature of more than 30 0 C is appropriate.
  • a temperature of at least 50 ° C. is preferred, the upper limit being 200 ° C.
  • concentration of the particular surfactant used depends i.a. its chemical structure and the resulting effectiveness, as well as the type and thickness of the oxide coatings.
  • a concentration range covering a wide range of applications is between 50 ppm and 3000 ppm.
  • the samples were placed in a container with an aqueous solution containing a surfactant at a concentration of at least 150 ppm, 350 ppm and 2000 ppm, respectively, and oxalic acid in a concentration above 50 ppm.
  • the samples were treated for between 5 and 40 hours at an elevated temperature of 50 ° C. to 200 ° C.
  • Americium-241 alpha-brier
  • cobalt-60 gamma-emitter
  • Americium was chosen because it can be determined by relatively simple means via gamma radiation accompanying its alpha decay.
  • measurements were carried out in the untreated state (there is an oxide layer formed in power plant operation), after the oxide layer has been removed and after treatment with a solution containing a surfactant and oxalic acid, and the respective ratio of the gamma activity to the alpha activity calculated.
  • a ratio of gamma to alpha activity (Co-60 / Am-241) is often found to be smaller than the corresponding ratio for the as yet untreated components or their surfaces, ie the relative proportion of alpha emitters has increased.
  • the method according to the invention is used-in the case of the tests in question, it was carried out after conventional oxide detachment-a large proportion of the alphanuclides present on the component surface are removed, which is reflected in the gamma / alpha ratio. This increased by a factor of about 500 in test 1, by a factor of about 6 in test 2 and by a factor of about 10 in test 3.
  • the conventional treatment ends in metallically bright surfaces, but often have intolerable residual activity which could not be further reduced by known chemical processes.
  • the residual activities or the decontamination factors (DF) can be drastically reduced by 6 to 90 times for Co-60 and 20 to 350 times for Am-241 ,
  • the remaining solution can be further treated by destroying the oxalic acid present in it under the action of UV radiation and then for further purification over a Solid bed is passed.
  • the solution can then be reused or evaporated for disposal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne un procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha, procédé mis en oeuvre comme complément à un procédé de décontamination ayant pour but d'éliminer les couches d'oxydes. Le procédé est caractérisé en ce que les surfaces sont traitées par une solution aqueuse renfermant un agent tensio-actif cationique ou ionique dipolaire et de l'acide oxalique, et en ce qu'au moins une partie de la solution est envoyée, après avoir agi sur une surface, sur un échangeur d'ions.
EP08786183A 2007-08-17 2008-07-16 Procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha Not-in-force EP2188814B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007038947A DE102007038947A1 (de) 2007-08-17 2007-08-17 Verfahren zur Dekontamination von mit Alphastrahlern kontaminierten Oberflächen von Nuklearanlagen
PCT/EP2008/059289 WO2009024417A2 (fr) 2007-08-17 2008-07-16 Procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha

Publications (2)

Publication Number Publication Date
EP2188814A2 true EP2188814A2 (fr) 2010-05-26
EP2188814B1 EP2188814B1 (fr) 2012-09-12

Family

ID=40279852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08786183A Not-in-force EP2188814B1 (fr) 2007-08-17 2008-07-16 Procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha

Country Status (9)

Country Link
US (1) US8702868B2 (fr)
EP (1) EP2188814B1 (fr)
JP (1) JP5235216B2 (fr)
KR (1) KR101182925B1 (fr)
CN (1) CN101809675B (fr)
CA (1) CA2695691C (fr)
DE (1) DE102007038947A1 (fr)
ES (1) ES2393291T3 (fr)
WO (1) WO2009024417A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002681A1 (de) * 2009-02-18 2010-09-09 Areva Np Gmbh Verfahren zur Dekontamination radioaktiv kontaminierter Oberflächen
JP6009218B2 (ja) * 2011-05-24 2016-10-19 ローム アンド ハース エレクトロニック マテリアルズ エルエルシーＲｏｈｍ ａｎｄ Ｈａａｓ Ｅｌｅｃｔｒｏｎｉｃ Ｍａｔｅｒｉａｌｓ ＬＬＣ アルファ粒子放射体除去
WO2015022270A1 (fr) * 2013-08-14 2015-02-19 Areva Gmbh Procédé permettant de réduire la contamination radioactive de la surface d'un élément installé dans un réacteur nucléaire
CN104900285B (zh) * 2015-04-08 2017-11-07 武汉网绿环境技术咨询有限公司 一种含放射性核素污染物的治理方法
KR200490490Y1 (ko) 2018-09-11 2019-11-19 채원영 샤워식 방사능 제염시스템

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653466A5 (de) * 1981-09-01 1985-12-31 Industrieorientierte Forsch Verfahren zur dekontamination von stahloberflaechen und entsorgung der radioaktiven stoffe.
DE3413868A1 (de) 1984-04-12 1985-10-17 Kraftwerk Union AG, 4330 Mülheim Verfahren zur chemischen dekontamination von metallischen bauteilen von kernreaktoranlagen
US4729855A (en) * 1985-11-29 1988-03-08 Westinghouse Electric Corp. Method of decontaminating radioactive metal surfaces
US4752206A (en) * 1987-04-06 1988-06-21 Johnson Service Company Take-out assembly for blow molding machine
CA2049728A1 (fr) * 1990-08-24 1992-02-25 Kenji Kitamura Composition de lavage capable de prevenir et d'ameliorer les irritations de la peau
US5278743A (en) * 1992-11-20 1994-01-11 Westinghouse Electric Corp. Alkaline-permanganate process
DE4410747A1 (de) 1994-03-28 1995-10-05 Siemens Ag Verfahren und Einrichtung zum Entsorgen einer Lösung, die eine organische Säure enthält
US5958247A (en) * 1994-03-28 1999-09-28 Siemens Aktiengesellschaft Method for disposing of a solution containing an organic acid
US6028113A (en) * 1995-09-27 2000-02-22 Sunburst Chemicals, Inc. Solid sanitizers and cleaner disinfectants
JPH09159798A (ja) * 1995-12-12 1997-06-20 Jgc Corp 泡除染および除染廃液処理の方法
US5752206A (en) * 1996-04-04 1998-05-12 Frink; Neal A. In-situ decontamination and recovery of metal from process equipment
WO2002004707A1 (fr) * 2000-07-11 2002-01-17 Ebara Industrial Cleaning Co., Ltd Agent de traitement de surface pour element metallique
US6652661B2 (en) * 2001-10-12 2003-11-25 Bobolink, Inc. Radioactive decontamination and translocation method
FR2841802B1 (fr) * 2002-07-08 2005-03-04 Commissariat Energie Atomique Composition, mousse et procede de decontamination de surfaces
JP2007198736A (ja) * 2006-01-23 2007-08-09 Mitsui Eng & Shipbuild Co Ltd 有機物含有放射性固体廃棄物の処理方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009024417A3 *

Also Published As

Publication number Publication date
WO2009024417A3 (fr) 2009-04-23
US8702868B2 (en) 2014-04-22
JP5235216B2 (ja) 2013-07-10
KR101182925B1 (ko) 2012-09-13
CA2695691A1 (fr) 2009-02-26
CN101809675B (zh) 2013-08-21
DE102007038947A1 (de) 2009-02-26
US20100116288A1 (en) 2010-05-13
EP2188814B1 (fr) 2012-09-12
CN101809675A (zh) 2010-08-18
KR20100057040A (ko) 2010-05-28
ES2393291T3 (es) 2012-12-20
CA2695691C (fr) 2014-10-21
JP2010537160A (ja) 2010-12-02
WO2009024417A2 (fr) 2009-02-26

Similar Documents

Publication Publication Date Title
EP2399262B1 (fr) Procédé de décontamination de surfaces contaminées par radioactivité
EP2417606B1 (fr) Procédé de décontamination de surfaces
EP0313843B1 (fr) Procédé pour décontaminer des surfaces
EP2564394B1 (fr) Procede pour la decontamination des surfaces
DE69312966T2 (de) Verfahren zum auflösung von auf einem metallsubstrat aufgeschiedenen oxyde
DE2613351C3 (de) Verfahren zur chemischen Dekontamination von metallischen Bauteilen von Kernreaktoranlagen
EP0144036A2 (fr) Procédé de décontamination des composants métalliques d'une installation nucléaire
DE69507709T2 (de) Dekontaminierungsverfahren
DE60221438T2 (de) Elektrochemisches verfahren zur dekontamination von radioaktiven materialien
EP2188814B1 (fr) Procédé de décontamination de surfaces d'installations nucléaires contaminées par des rayons alpha
EP1968075B1 (fr) Procédé de décontamination d'une surface comprenant une couche d'oxyde d'un composant ou d'un système d'une installation nucléaire
DE2004600A1 (de) Verfahren zur Reinigung radioaktiver Metalloberflächen
CH625363A5 (fr)
DE3143440A1 (de) Verfahren zur dekontamination von radioaktiv kontaminierten oberflaechen metallischer werkstoffe
CH682023A5 (fr)
DE2910034C2 (de) Verfahren zur Aufbereitung radioaktiver Lösungen
EP2828205B1 (fr) Procédé pour éliminer des polluants radioactifs d'eaux résiduaires
EP1141445A1 (fr) Procede de decontamination d'une surface d'un element
EP3244418B1 (fr) Décontamination chimique de surfaces métalliques radioactives
DE2333516C3 (de) Dekontaminationsmittel für metallische Oberflächen und Verfahren zum Dekontaminieren unter Verwendung derselben
DE2511112C3 (de) Verfahren zum Dekontaminieren von Oberflächen metallischer Werkstoffe
DE4236815A1 (de) Verfahren zur Dekontamination von radioaktiv kontaminiertem Material
WO2009118277A1 (fr) Procédé pour le conditionnement d'une solution de nettoyage résultant du nettoyage par voie humide d'un générateur de vapeur nucléaire
DE4310749A1 (en) Electrochemical decontamination of metal component using strongly alkaline electrolyte liq. - used to remove radioactive oxide layers from PWR and BWR components
DE2063829B2 (de) Verfahren zum korrosionsschutz eines brennelementabklingbeckens aus kohlenstoffstahl

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: 20090507

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

DAX Request for extension of the european patent (deleted)
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 575388

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. AG PATENT- UND MARKENANWAELTE VSP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008008188

Country of ref document: DE

Effective date: 20121108

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2393291

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20121220

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121212

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120912

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Effective date: 20120912

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121213

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 13139

Country of ref document: SK

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: AREVA GMBH

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

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130112

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

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

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130114

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: AREVA GMBH, DE

Free format text: FORMER OWNER: AREVA NP GMBH, DE

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

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121212

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

26N No opposition filed

Effective date: 20130613

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008008188

Country of ref document: DE

Effective date: 20130613

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MOERTEL, ALFRED, DIPL.-PHYS. DR.RER.NAT., DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008008188

Country of ref document: DE

Owner name: AREVA GMBH, DE

Free format text: FORMER OWNER: AREVA NP GMBH, 91052 ERLANGEN, DE

Effective date: 20131112

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MOERTEL, ALFRED, DIPL.-PHYS. DR.RER.NAT., DE

Effective date: 20131112

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MEISSNER BOLTE & PARTNER GBR, DE

Effective date: 20131112

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE

Effective date: 20131112

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MEISSNER BOLTE & PARTNER GBR, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130716

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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 NON-PAYMENT OF DUE FEES

Effective date: 20130716

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130716

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 575388

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130716

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

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130716

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20080716

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130716

REG Reference to a national code

Ref document number: 502008008188

Ref country code: DE

Ref legal event code: R082

Country of ref document: DE

Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20170720

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008008188

Country of ref document: DE

Owner name: FRAMATOME GMBH, DE

Free format text: FORMER OWNER: AREVA GMBH, 91052 ERLANGEN, DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: FRAMATOME GMBH, DE

Free format text: FORMER OWNER: AREVA GMBH, DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: HC

Owner name: AREVA GMBH; DE

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGEMENT DE NOM DU PROPRIETAIRE; FORMER OWNER NAME: AREVA NP GMBH

Effective date: 20190107

Ref country code: BE

Ref legal event code: PD

Owner name: FRAMATOME GMBH; DE

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION; FORMER OWNER NAME: AREVA GMBH

Effective date: 20190107

REG Reference to a national code

Ref country code: SK

Ref legal event code: MM4A

Ref document number: E 13139

Country of ref document: SK

Effective date: 20180716

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: FRAMATOME GMBH

Effective date: 20190516

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180716

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008008188

Country of ref document: DE

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

Ref country code: FR

Payment date: 20200731

Year of fee payment: 13

Ref country code: ES

Payment date: 20200817

Year of fee payment: 13

Ref country code: DE

Payment date: 20200716

Year of fee payment: 13

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

Ref country code: BE

Payment date: 20200721

Year of fee payment: 13

Ref country code: SE

Payment date: 20200720

Year of fee payment: 13

Ref country code: CH

Payment date: 20200722

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008008188

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210731

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220201

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210717

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

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

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220906

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 NON-PAYMENT OF DUE FEES

Effective date: 20210717