CA2321183C - Method and apparatus for the production and extraction of molybdenum-99 - Google Patents
Method and apparatus for the production and extraction of molybdenum-99 Download PDFInfo
- Publication number
- CA2321183C CA2321183C CA002321183A CA2321183A CA2321183C CA 2321183 C CA2321183 C CA 2321183C CA 002321183 A CA002321183 A CA 002321183A CA 2321183 A CA2321183 A CA 2321183A CA 2321183 C CA2321183 C CA 2321183C
- Authority
- CA
- Canada
- Prior art keywords
- sorbent
- reactor
- sulfate solution
- uranyl sulfate
- solution
- 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
Links
- ZOKXTWBITQBERF-AKLPVKDBSA-N Molybdenum Mo-99 Chemical compound [99Mo] ZOKXTWBITQBERF-AKLPVKDBSA-N 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229950009740 molybdenum mo-99 Drugs 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- 238000000605 extraction Methods 0.000 title abstract description 9
- 239000002594 sorbent Substances 0.000 claims abstract description 39
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012456 homogeneous solution Substances 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 229920001577 copolymer Polymers 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- WAKHLWOJMHVUJC-FYWRMAATSA-N (2e)-2-hydroxyimino-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(=N/O)\C(O)C1=CC=CC=C1 WAKHLWOJMHVUJC-FYWRMAATSA-N 0.000 claims abstract 3
- 229910000384 uranyl sulfate Inorganic materials 0.000 claims description 28
- 230000004992 fission Effects 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 239000003758 nuclear fuel Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- -1 uranyl sulphate Chemical compound 0.000 abstract 1
- 229910052770 Uranium Inorganic materials 0.000 description 13
- 239000000047 product Substances 0.000 description 13
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 13
- 239000012530 fluid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 239000002901 radioactive waste Substances 0.000 description 3
- 229910002007 uranyl nitrate Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- WAKHLWOJMHVUJC-SQFISAMPSA-N (2z)-2-hydroxyimino-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(=N/O)/C(O)C1=CC=CC=C1 WAKHLWOJMHVUJC-SQFISAMPSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910000383 uranium sulfate Inorganic materials 0.000 description 1
- SMWCBVIJCHHBAU-UHFFFAOYSA-L uranium sulfate Chemical compound [U+2].[O-]S([O-])(=O)=O SMWCBVIJCHHBAU-UHFFFAOYSA-L 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G1/00—Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation or particle bombardment, e.g. producing radioactive isotopes
- G21G1/02—Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation or particle bombardment, e.g. producing radioactive isotopes in nuclear reactors
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G1/00—Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation or particle bombardment, e.g. producing radioactive isotopes
- G21G1/001—Recovery of specific isotopes from irradiated targets
- G21G2001/0036—Molybdenum
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/028,183 | 1998-02-23 | ||
| US09/028,183 US5910971A (en) | 1998-02-23 | 1998-02-23 | Method and apparatus for the production and extraction of molybdenum-99 |
| PCT/US1999/004030 WO1999053887A2 (en) | 1998-02-23 | 1999-02-22 | Method and apparatus for the production and extraction of molybdenum-99 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2321183A1 CA2321183A1 (en) | 1999-10-28 |
| CA2321183C true CA2321183C (en) | 2008-12-09 |
Family
ID=21842031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002321183A Expired - Lifetime CA2321183C (en) | 1998-02-23 | 1999-02-22 | Method and apparatus for the production and extraction of molybdenum-99 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5910971A (enExample) |
| EP (1) | EP1058931B1 (enExample) |
| JP (1) | JP4342729B2 (enExample) |
| AU (1) | AU749626B2 (enExample) |
| CA (1) | CA2321183C (enExample) |
| DE (1) | DE69942484D1 (enExample) |
| WO (1) | WO1999053887A2 (enExample) |
Families Citing this family (62)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337055B1 (en) * | 2000-01-21 | 2002-01-08 | Tci Incorporated | Inorganic sorbent for molybdenum-99 extraction from irradiated uranium solutions and its method of use |
| AU2002316087A1 (en) | 2001-05-08 | 2002-11-18 | The Curators Of The University Of Missouri | Method and apparatus for generating thermal neutrons |
| US8953731B2 (en) | 2004-12-03 | 2015-02-10 | General Electric Company | Method of producing isotopes in power nuclear reactors |
| US7526058B2 (en) * | 2004-12-03 | 2009-04-28 | General Electric Company | Rod assembly for nuclear reactors |
| RU2296712C2 (ru) * | 2005-05-24 | 2007-04-10 | Федеральное государственное унитарное предприятие "Государственный научный центр Российской Федерации-Физико-энергетический институт им. А.И. Лейпунского" | Способ производства молибдена-99 и устройство для его осуществления |
| US9362009B2 (en) * | 2007-11-28 | 2016-06-07 | Ge-Hitachi Nuclear Energy Americas Llc | Cross-section reducing isotope system |
| US9202598B2 (en) * | 2007-11-28 | 2015-12-01 | Ge-Hitachi Nuclear Energy Americas Llc | Fail-free fuel bundle assembly |
| US20090135990A1 (en) * | 2007-11-28 | 2009-05-28 | Ge-Hitachi Nuclear Energy Americas Llc | Placement of target rods in BWR bundle |
| US8842800B2 (en) * | 2007-11-28 | 2014-09-23 | Ge-Hitachi Nuclear Energy Americas Llc | Fuel rod designs using internal spacer element and methods of using the same |
| US20090135989A1 (en) * | 2007-11-28 | 2009-05-28 | Ge-Hitachi Nuclear Energy Americas Llc | Segmented fuel rod bundle designs using fixed spacer plates |
| US8437443B2 (en) * | 2008-02-21 | 2013-05-07 | Ge-Hitachi Nuclear Energy Americas Llc | Apparatuses and methods for production of radioisotopes in nuclear reactor instrumentation tubes |
| US8712000B2 (en) | 2007-12-13 | 2014-04-29 | Global Nuclear Fuel—Americas, LLC | Tranverse in-core probe monitoring and calibration device for nuclear power plants, and method thereof |
| US8885791B2 (en) | 2007-12-18 | 2014-11-11 | Ge-Hitachi Nuclear Energy Americas Llc | Fuel rods having irradiation target end pieces |
| US8180014B2 (en) * | 2007-12-20 | 2012-05-15 | Global Nuclear Fuel-Americas, Llc | Tiered tie plates and fuel bundles using the same |
| JP5461435B2 (ja) * | 2008-02-05 | 2014-04-02 | ザ キュレイターズ オブ ザ ユニバーシティ オブ ミズーリ | 放射性同位体を製造または核廃棄物を処理する方法及び装置 |
| US8767905B2 (en) * | 2008-03-07 | 2014-07-01 | Babcock & Wilcox Technical Services Group, Inc. | Combinatorial heterogeneous-homogeneous reactor |
| US7970095B2 (en) | 2008-04-03 | 2011-06-28 | GE - Hitachi Nuclear Energy Americas LLC | Radioisotope production structures, fuel assemblies having the same, and methods of using the same |
| US8270555B2 (en) * | 2008-05-01 | 2012-09-18 | Ge-Hitachi Nuclear Energy Americas Llc | Systems and methods for storage and processing of radioisotopes |
| US8050377B2 (en) | 2008-05-01 | 2011-11-01 | Ge-Hitachi Nuclear Energy Americas Llc | Irradiation target retention systems, fuel assemblies having the same, and methods of using the same |
| CA2723224C (en) | 2008-05-02 | 2018-09-25 | Phoenix Nuclear Labs Llc | Device and method for producing medical isotopes |
| US7781637B2 (en) * | 2008-07-30 | 2010-08-24 | Ge-Hitachi Nuclear Energy Americas Llc | Segmented waste rods for handling nuclear waste and methods of using and fabricating the same |
| CN101685680B (zh) * | 2008-09-27 | 2011-11-09 | 中国核动力研究设计院 | 医用同位素生产溶液堆均匀内热源模拟装置 |
| US20100169134A1 (en) * | 2008-12-31 | 2010-07-01 | Microsoft Corporation | Fostering enterprise relationships |
| US8699651B2 (en) * | 2009-04-15 | 2014-04-15 | Ge-Hitachi Nuclear Energy Americas Llc | Method and system for simultaneous irradiation and elution capsule |
| US9165691B2 (en) * | 2009-04-17 | 2015-10-20 | Ge-Hitachi Nuclear Energy Americas Llc | Burnable poison materials and apparatuses for nuclear reactors and methods of using the same |
| US9431138B2 (en) * | 2009-07-10 | 2016-08-30 | Ge-Hitachi Nuclear Energy Americas, Llc | Method of generating specified activities within a target holding device |
| US8366088B2 (en) * | 2009-07-10 | 2013-02-05 | Ge-Hitachi Nuclear Energy Americas Llc | Brachytherapy and radiography target holding device |
| US8638899B2 (en) * | 2009-07-15 | 2014-01-28 | Ge-Hitachi Nuclear Energy Americas Llc | Methods and apparatuses for producing isotopes in nuclear fuel assembly water rods |
| US8488733B2 (en) * | 2009-08-25 | 2013-07-16 | Ge-Hitachi Nuclear Energy Americas Llc | Irradiation target retention assemblies for isotope delivery systems |
| US9773577B2 (en) * | 2009-08-25 | 2017-09-26 | Ge-Hitachi Nuclear Energy Americas Llc | Irradiation targets for isotope delivery systems |
| US9183959B2 (en) * | 2009-08-25 | 2015-11-10 | Ge-Hitachi Nuclear Energy Americas Llc | Cable driven isotope delivery system |
| RU2413020C1 (ru) * | 2009-12-03 | 2011-02-27 | Николай Антонович Ермолов | Способ и устройство для производства молибдена-99 |
| WO2012003009A2 (en) | 2010-01-28 | 2012-01-05 | Shine Medical Technologies, Inc. | Segmented reaction chamber for radioisotope production |
| DE102010006435B3 (de) * | 2010-02-01 | 2011-07-21 | Siemens Aktiengesellschaft, 80333 | Verfahren und Vorrichtung zur Produktion von 99mTc |
| US9177679B2 (en) * | 2010-02-11 | 2015-11-03 | Uchicago Argonne, Llc | Accelerator-based method of producing isotopes |
| RU2548033C2 (ru) * | 2010-02-19 | 2015-04-10 | БЭБКОК ЭНД ВИЛКОКС Текникал Сервисез Груп, Инк. | Способ и устройство для экстракции и обработки молибдена-99 |
| US8542789B2 (en) * | 2010-03-05 | 2013-09-24 | Ge-Hitachi Nuclear Energy Americas Llc | Irradiation target positioning devices and methods of using the same |
| US9336916B2 (en) * | 2010-05-14 | 2016-05-10 | Tcnet, Llc | Tc-99m produced by proton irradiation of a fluid target system |
| PL2580763T3 (pl) | 2010-06-09 | 2016-01-29 | General Atomics | Sposoby i urządzenia do selektywnej gazowej ekstrakcji molibdenu-99 oraz innych produktów radioizotopów rozszczepionych |
| US9899107B2 (en) | 2010-09-10 | 2018-02-20 | Ge-Hitachi Nuclear Energy Americas Llc | Rod assembly for nuclear reactors |
| GB201016935D0 (en) * | 2010-10-07 | 2010-11-24 | Mallinckrodt Inc | Extraction process |
| WO2012095644A1 (en) * | 2011-01-12 | 2012-07-19 | Siemens Aktiengesellschaft | A compact, low energy neutron source |
| US10734126B2 (en) | 2011-04-28 | 2020-08-04 | SHINE Medical Technologies, LLC | Methods of separating medical isotopes from uranium solutions |
| KR101254549B1 (ko) | 2011-08-29 | 2013-04-19 | 한국원자력연구원 | 99ｍ-Ｔｃ 발생기용 칼럼 모듈, 시스템 및 이를 이용한 99ｍ-Ｔｃ 추출 방법 |
| US10332646B2 (en) * | 2011-12-05 | 2019-06-25 | Wisconsin Alumni Research Foundation | Apparatus and method for generating medical isotopes |
| US9330798B2 (en) | 2011-12-28 | 2016-05-03 | Ge-Hitachi Nuclear Energy Americas Llc | Systems and methods for processing irradiation targets through a nuclear reactor |
| US9208909B2 (en) | 2011-12-28 | 2015-12-08 | Ge-Hitachi Nuclear Energy Americas, Llc | Systems and methods for retaining and removing irradiation targets in a nuclear reactor |
| US9224507B2 (en) | 2011-12-28 | 2015-12-29 | Ge-Hitachi Nuclear Energy Americas, Llc | Systems and methods for managing shared-path instrumentation and irradiation targets in a nuclear reactor |
| US9305673B2 (en) | 2011-12-28 | 2016-04-05 | Ge-Hitachi Nuclear Energy Americas, Llc | Systems and methods for harvesting and storing materials produced in a nuclear reactor |
| RU2516111C2 (ru) * | 2011-12-30 | 2014-05-20 | Николай Антонович Ермолов | УСТРОЙСТВО ДЛЯ ПРОИЗВОДСТВА Мо-99 |
| US11361873B2 (en) | 2012-04-05 | 2022-06-14 | Shine Technologies, Llc | Aqueous assembly and control method |
| US9875818B2 (en) * | 2012-10-11 | 2018-01-23 | Bwx Technologies, Inc. | Fail-safe reactivity compensation method for a nuclear reactor |
| US9330800B2 (en) * | 2012-12-03 | 2016-05-03 | Wisconsin Alumni Research Foundation | Dry phase reactor for generating medical isotopes |
| US10141079B2 (en) * | 2014-12-29 | 2018-11-27 | Terrapower, Llc | Targetry coupled separations |
| US10665356B2 (en) | 2015-09-30 | 2020-05-26 | Terrapower, Llc | Molten fuel nuclear reactor with neutron reflecting coolant |
| US10734122B2 (en) | 2015-09-30 | 2020-08-04 | Terrapower, Llc | Neutron reflector assembly for dynamic spectrum shifting |
| US10867710B2 (en) | 2015-09-30 | 2020-12-15 | Terrapower, Llc | Molten fuel nuclear reactor with neutron reflecting coolant |
| CN105506274B (zh) * | 2015-11-24 | 2017-09-12 | 中国原子能科学研究院 | 一种辐照低浓铀箔靶件铀箔溶解装置 |
| US11286172B2 (en) | 2017-02-24 | 2022-03-29 | BWXT Isotope Technology Group, Inc. | Metal-molybdate and method for making the same |
| CN114651311A (zh) | 2019-12-23 | 2022-06-21 | 泰拉能源公司 | 熔融燃料反应堆和用于熔融燃料反应堆的孔环板 |
| WO2022039893A1 (en) | 2020-08-17 | 2022-02-24 | Terrapower, Llc | Designs for fast spectrum molten chloride test reactors |
| CN119943465B (zh) * | 2024-12-20 | 2025-11-07 | 中国核动力研究设计院 | 一种医用同位素堆用耐辐照燃料溶液的设计方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940318A (en) * | 1970-12-23 | 1976-02-24 | Union Carbide Corporation | Preparation of a primary target for the production of fission products in a nuclear reactor |
| US4284472A (en) * | 1978-10-16 | 1981-08-18 | General Electric Company | Method for enhanced control of radioiodine in the production of fission product molybdenum 99 |
| FR2575585B1 (fr) * | 1984-12-28 | 1987-01-30 | Commissariat Energie Atomique | Procede de recuperation de molybdene-99 a partir d'une cible d'alliage d'uranium irradie |
| DE4231997C1 (de) * | 1992-09-24 | 1994-01-05 | Kernforschungsz Karlsruhe | Verfahren zum Abtrennen von Spaltmolybdän |
| US5596611A (en) * | 1992-12-08 | 1997-01-21 | The Babcock & Wilcox Company | Medical isotope production reactor |
-
1998
- 1998-02-23 US US09/028,183 patent/US5910971A/en not_active Expired - Lifetime
-
1999
- 1999-02-22 AU AU53117/99A patent/AU749626B2/en not_active Expired
- 1999-02-22 WO PCT/US1999/004030 patent/WO1999053887A2/en not_active Ceased
- 1999-02-22 JP JP2000544295A patent/JP4342729B2/ja not_active Expired - Lifetime
- 1999-02-22 DE DE69942484T patent/DE69942484D1/de not_active Expired - Lifetime
- 1999-02-22 EP EP99938690A patent/EP1058931B1/en not_active Expired - Lifetime
- 1999-02-22 CA CA002321183A patent/CA2321183C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1058931A2 (en) | 2000-12-13 |
| AU749626B2 (en) | 2002-06-27 |
| EP1058931A4 (en) | 2007-12-05 |
| US5910971A (en) | 1999-06-08 |
| WO1999053887A2 (en) | 1999-10-28 |
| JP4342729B2 (ja) | 2009-10-14 |
| AU5311799A (en) | 1999-11-08 |
| DE69942484D1 (de) | 2010-07-22 |
| WO1999053887A3 (en) | 1999-12-23 |
| JP2002512358A (ja) | 2002-04-23 |
| EP1058931B1 (en) | 2010-06-09 |
| CA2321183A1 (en) | 1999-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20190222 |