EP1218890A2 - Verfahren zur wiedergewinnung von ionischen flüssigkeiten - Google Patents
Verfahren zur wiedergewinnung von ionischen flüssigkeitenInfo
- Publication number
- EP1218890A2 EP1218890A2 EP20000958764 EP00958764A EP1218890A2 EP 1218890 A2 EP1218890 A2 EP 1218890A2 EP 20000958764 EP20000958764 EP 20000958764 EP 00958764 A EP00958764 A EP 00958764A EP 1218890 A2 EP1218890 A2 EP 1218890A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ionic liquid
- product
- decomposition product
- chloride
- regenerate
- 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.)
- Withdrawn
Links
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004064 recycling Methods 0.000 title description 4
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000000356 contaminant Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000000376 reactant Substances 0.000 claims abstract description 3
- 239000000047 product Substances 0.000 claims description 34
- 230000004992 fission Effects 0.000 claims description 11
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 10
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 claims description 8
- 229960003750 ethyl chloride Drugs 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 4
- 238000012958 reprocessing Methods 0.000 claims description 4
- 239000002915 spent fuel radioactive waste Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 239000003758 nuclear fuel Substances 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 229910052770 Uranium Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000001149 thermolysis Methods 0.000 description 3
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 3
- YSNRFLSZENCKRS-UHFFFAOYSA-M 1,3-diethylimidazol-1-ium;chloride Chemical compound [Cl-].CCN1C=C[N+](CC)=C1 YSNRFLSZENCKRS-UHFFFAOYSA-M 0.000 description 2
- IIJSFQFJZAEKHB-UHFFFAOYSA-M 1,3-dimethylimidazol-1-ium;chloride Chemical compound [Cl-].CN1C=C[N+](C)=C1 IIJSFQFJZAEKHB-UHFFFAOYSA-M 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052778 Plutonium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000004693 imidazolium salts Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 2
- IWDFHWZHHOSSGR-UHFFFAOYSA-N 1-ethylimidazole Chemical compound CCN1C=CN=C1 IWDFHWZHHOSSGR-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000013383 initial experiment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003608 radiolysis reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/42—Reprocessing of irradiated fuel
- G21C19/44—Reprocessing of irradiated fuel of irradiated solid fuel
- G21C19/48—Non-aqueous processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Definitions
- This invention relates to processes for treating spent ionic liquids.
- Ionic liquids free of molecular solvents were first disclosed by Hurley and Wier in a series of US patents (24446331, 2446339, 2446350).
- an ionic liquid is a salt, a mixtures of salts, or a mixture of components which produce a salt or salts, which melts below or just above room temperature.
- salt means an entity comprising entirely of cationic and anionic species.
- Such liquids are known as "ionic liquids" although this term is sometimes used for salts which melt at relatively high temperatures.
- the term “ionic liquid” refers to a salt which melts at a temperature of up to 100°C.
- Co-pending patent application PCT/GB99/00246 discloses a method for reprocessing spent nuclear fuel which comprises dissolving the spent fuel or constituent parts of the spent fuel in an ionic liquid to substantially separate fissile material from other components of irradiated fuel. Also disclosed is the subsequent treatment of the resulting ionic liquor, either by solvent extraction or electrochemical treatment to recover the dissolved uranium or plutonium.
- Fission products may alternatively or additionally be extracted from the ionic liquid by the addition of an organic solvent. Addition of an organic species results in the precipitation of fission product compounds.
- the precipitate can be filtered from the ionic liquid and calcined to convert to oxide prior to a vitrification step. Cleaned ionic liquid can then be recycled to the electrorefiner.
- Combustion is another option for removal of contaminants, wherein spent ionic liquid is heated to temperatures in excess of 200°C.
- the disadvantage of this process can be measured in economic terms: Combustion of imidazolium salts results in the production of carbon dioxide, water and a mixture of nitrogen oxides (NOJ. This means that the ionic liquid cannot be recycled and is in fact destroyed.
- a method for treating a spent ionic liquid composition comprising an ionic liquid and contaminant, the method comprising heating said ionic liquid to form a partial decomposition product thereof, separating said product from said contaminant and reacting the separated product with a reactant to regenerate said ionic liquid.
- thermolysis products were left for two days at room temperature and re-acted to produce a mixture of 1,3- dimethylimidazolium chloride, 1 ,3-diethylimidazolium chloride, and l-methyl-3- ethylimidazolium chloride.
- the decomposition product is separated together with at least one other decomposition product from the contaminants. Separation is effected by volatilisation during the heating process. In one embodiment of the invention the partial decomposition product is separated from the at least one other decomposition product by distillation.
- the ionic liquid is heated under reduced pressure at or below 2mmHg at a temperature ranging from 200°C to 300°C or more preferably from 220°C to 250°C.
- Spent ionic liquid for example l-memyl-3-emyli ⁇ udazohum chloride
- fission products possibly organic radiolysis products, and will require treatment in order to recover the fission products in a form suitable for conversion into a stable waste form.
- the ionic liquid is heated under reduced pressure to a temperature within the range of 200°C to 300°C.
- l-methyl-3-ethylimidazolium is heated at a temperature from 220°C to 250°C for 2-3 hours at pressures below 2mmHg.
- Volatile products can be collected in a cold trap and subsequent distillation of the mixture allows for separation of the components.
- the most volatile components are hydrogen chloride and ethene.
- Hydrogen chloride can be scrubbed from the system using a hydroxide scrubber and ethene can either be bottled or burnt as a by-product.
- 1 -methylimidizole and 1 -ethylimidizole can be separated by distillation to allow for regeneration of the specific ionic liquid l-methyl-3-ethylimidazolium chloride. It should be understood that separation is not required for processes which operate on a mixture of l-methyl-3-ethylimidazolium chloride, 1,3-dimethylimidazolium chloride and 1,3-diethylimidazolium chloride.
- fission product residue is calcined to convert it into a stable waste form.
- fission product residue is reacted with boric acid to convert it into a suitable form for disposal.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Extraction Or Liquid Replacement (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9919606A GB9919606D0 (en) | 1999-08-19 | 1999-08-19 | Process for recycling ionic liquids |
GB9919606 | 1999-08-19 | ||
PCT/GB2000/003234 WO2001015175A2 (en) | 1999-08-19 | 2000-08-21 | Process for recycling ionic liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1218890A2 true EP1218890A2 (de) | 2002-07-03 |
Family
ID=10859412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000958764 Withdrawn EP1218890A2 (de) | 1999-08-19 | 2000-08-21 | Verfahren zur wiedergewinnung von ionischen flüssigkeiten |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1218890A2 (de) |
JP (1) | JP2003507185A (de) |
CN (1) | CN1375103A (de) |
AU (1) | AU7018700A (de) |
GB (1) | GB9919606D0 (de) |
WO (1) | WO2001015175A2 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013098056A1 (en) | 2011-12-28 | 2013-07-04 | Lanxess Deutschland Gmbh | Purification of optionally hydrogenated nitrile rubber |
US11492306B2 (en) * | 2020-09-30 | 2022-11-08 | Honeywell International Inc. | Alkylation process with thermal oxidation system |
US11578020B2 (en) | 2020-08-04 | 2023-02-14 | Honeywell International Inc. | Naphtha complex with thermal oxidation system |
US11578278B2 (en) | 2020-08-01 | 2023-02-14 | Honeywell International Inc. | Renewable transportation fuel process with thermal oxidation system |
US11780795B2 (en) | 2020-08-04 | 2023-10-10 | Honeywell International Inc. | Cumene-phenol complex with thermal oxidation system |
US12017984B2 (en) | 2020-08-04 | 2024-06-25 | Honeywell International Inc. | Propane/butane dehydrogenation complex with thermal oxidation system |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6991718B2 (en) | 2001-11-21 | 2006-01-31 | Sachem, Inc. | Electrochemical process for producing ionic liquids |
CA2502900A1 (en) | 2002-08-16 | 2004-02-26 | Roger Moulton | Lewis acid ionic liquids |
WO2006070545A1 (ja) * | 2004-12-27 | 2006-07-06 | National Institute Of Advanced Industrial Science And Technology | イオン液体 |
JP4652359B2 (ja) * | 2007-03-09 | 2011-03-16 | 日本合成化学工業株式会社 | イオン液体の分解処理方法 |
JP4753141B2 (ja) * | 2007-08-01 | 2011-08-24 | 独立行政法人 日本原子力研究開発機構 | イオン液体を用いたウランの溶解分離方法、及びそれを用いたウランの回収方法 |
US7732364B2 (en) * | 2007-12-28 | 2010-06-08 | Chevron U.S.A. Inc. | Process for ionic liquid catalyst regeneration |
KR100974890B1 (ko) | 2008-04-18 | 2010-08-11 | 인하대학교 산학협력단 | 극초단파를 이용한 이온성 액체의 회수방법 |
JP4843106B2 (ja) * | 2011-01-24 | 2011-12-21 | 独立行政法人日本原子力研究開発機構 | イオン液体を用いたウランの回収方法 |
JP5734004B2 (ja) * | 2011-02-07 | 2015-06-10 | 三菱重工業株式会社 | プルトニウム含有廃液の処理方法及び処理装置 |
US8673800B2 (en) | 2012-02-14 | 2014-03-18 | Chevron U.S.A. Inc. | Hydrolysis of used ionic liquid catalyst for disposal |
EP2986373A4 (de) | 2013-04-19 | 2016-12-14 | Reliance Ind Ltd | Verfahren zur regenerierung eines ionischen verbindung |
JP2020094979A (ja) | 2018-12-14 | 2020-06-18 | 日立Geニュークリア・エナジー株式会社 | 有機よう素捕集装置及び有機よう素捕集方法 |
JP7470491B2 (ja) | 2019-02-25 | 2024-04-18 | 日立Geニュークリア・エナジー株式会社 | 有機よう素除去剤 |
JP7281393B2 (ja) | 2019-12-18 | 2023-05-25 | 日立Geニュークリア・エナジー株式会社 | 有機よう素除去剤および有機よう素除去装置 |
JP7373454B2 (ja) | 2020-04-10 | 2023-11-02 | 日立Geニュークリア・エナジー株式会社 | 有機よう素捕集装置 |
CN112680609B (zh) * | 2020-12-14 | 2022-06-03 | 中国人民解放军63653部队 | 一种钚回收离子液体萃取剂及其从含钚废液中萃取分离钚的方法 |
JP2024025247A (ja) | 2022-08-10 | 2024-02-26 | 日立Geニュークリア・エナジー株式会社 | フィルタベント装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9719551D0 (en) * | 1997-09-16 | 1997-11-19 | British Nuclear Fuels Plc | Treatment of molten salt reprocessing wastes |
GB9802852D0 (en) * | 1998-02-11 | 1998-04-08 | British Nuclear Fuels Plc | Nuclear fuel reprocessing |
-
1999
- 1999-08-19 GB GB9919606A patent/GB9919606D0/en not_active Ceased
-
2000
- 2000-08-21 EP EP20000958764 patent/EP1218890A2/de not_active Withdrawn
- 2000-08-21 JP JP2001519449A patent/JP2003507185A/ja active Pending
- 2000-08-21 AU AU70187/00A patent/AU7018700A/en not_active Abandoned
- 2000-08-21 WO PCT/GB2000/003234 patent/WO2001015175A2/en not_active Application Discontinuation
- 2000-08-21 CN CN00811751A patent/CN1375103A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO0115175A2 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013098056A1 (en) | 2011-12-28 | 2013-07-04 | Lanxess Deutschland Gmbh | Purification of optionally hydrogenated nitrile rubber |
US11578278B2 (en) | 2020-08-01 | 2023-02-14 | Honeywell International Inc. | Renewable transportation fuel process with thermal oxidation system |
US11578020B2 (en) | 2020-08-04 | 2023-02-14 | Honeywell International Inc. | Naphtha complex with thermal oxidation system |
US11780795B2 (en) | 2020-08-04 | 2023-10-10 | Honeywell International Inc. | Cumene-phenol complex with thermal oxidation system |
US12017984B2 (en) | 2020-08-04 | 2024-06-25 | Honeywell International Inc. | Propane/butane dehydrogenation complex with thermal oxidation system |
US11492306B2 (en) * | 2020-09-30 | 2022-11-08 | Honeywell International Inc. | Alkylation process with thermal oxidation system |
Also Published As
Publication number | Publication date |
---|---|
WO2001015175A2 (en) | 2001-03-01 |
WO2001015175A3 (en) | 2002-02-21 |
GB9919606D0 (en) | 1999-10-20 |
JP2003507185A (ja) | 2003-02-25 |
CN1375103A (zh) | 2002-10-16 |
AU7018700A (en) | 2001-03-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001015175A2 (en) | Process for recycling ionic liquids | |
US6468495B1 (en) | Treatment of molten salt reprocessing wastes | |
JPS63197592A (ja) | 電池、集積回路基板および電子部品の再利用方法 | |
CN101375347B (zh) | 使用过的核燃料的湿式再处理中的钠盐回收系统 | |
US4477373A (en) | Molten salt hazardous waste disposal process utilizing gas/liquid contact for salt recovery | |
JPH1123793A (ja) | イオン交換樹脂の処理方法 | |
JP4495458B2 (ja) | 放射性廃棄物の処理のための方法及び装置 | |
US4981616A (en) | Spent fuel treatment method | |
US2854315A (en) | Electrolytic reduction of nitric acid solutions containing radioactive waste | |
US6241800B1 (en) | Acid fluxes for metal reclamation from contaminated solids | |
US4741857A (en) | Method of purifying neutral organophosphorus extractants | |
JPS60255624A (ja) | ウランプロセス廃棄物からモリブデン及びウラン有価物を分離、回収する方法 | |
US4855081A (en) | Method for decontaminating conventional plastic materials which have become radioactively contaminated, and articles | |
US3846256A (en) | Chemical trap | |
US5171447A (en) | Method of extracting and separating spent solvent generated in nuclear fuel cycle | |
EP0619044B1 (de) | Behandlung von festem organischem abfall | |
EP0452075B1 (de) | Verfahren zum Abtrennen und Reinigen eines durch Kernkraftstoffzyklus gewonnenes abgebautes Lösungsmittel | |
US4756853A (en) | Process for the conversion into usable condition of actinide ions contained in the solid residue of a sulfate reprocessing process for organic, actinide-containing radioactive solid waste | |
US5035840A (en) | Process for cleaning trace metals from EDTA | |
SE420657B (sv) | Forfarande for beredning av vid regenering av bestralade kernbrenslen och/eller bridemnen anvenda avfallsvetskor for lagring | |
Burger et al. | Separation of iodine from mercury containing scrubbing solutions | |
JP3997884B2 (ja) | ウラン回収方法 | |
JP2001019426A (ja) | 水酸化バリウム回収方法 | |
JPS63218894A (ja) | 使用済核燃料の再処理方法 | |
JPH077097B2 (ja) | 放射性廃有機溶媒の分解処理方法 |
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: 20020319 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20070301 |