EP2311044A1 - Procede de traitement d'une structure contenant du sodium et une matiere radioactive - Google Patents
Procede de traitement d'une structure contenant du sodium et une matiere radioactiveInfo
- Publication number
- EP2311044A1 EP2311044A1 EP09784222A EP09784222A EP2311044A1 EP 2311044 A1 EP2311044 A1 EP 2311044A1 EP 09784222 A EP09784222 A EP 09784222A EP 09784222 A EP09784222 A EP 09784222A EP 2311044 A1 EP2311044 A1 EP 2311044A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sodium
- treatment
- reaction
- sheath
- cesium
- 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
Links
- 239000011734 sodium Substances 0.000 title claims abstract description 54
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 42
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000941 radioactive substance Substances 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 24
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000011148 porous material Substances 0.000 claims abstract description 13
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 6
- 229910052792 caesium Inorganic materials 0.000 claims description 18
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 18
- 239000012857 radioactive material Substances 0.000 claims description 18
- 239000012495 reaction gas Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000002285 radioactive effect Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 claims description 5
- 229910021397 glassy carbon Inorganic materials 0.000 claims description 5
- 239000011541 reaction mixture Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 abstract 3
- 230000001902 propagating effect Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 10
- 230000008901 benefit Effects 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 238000004868 gas analysis Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- G21F9/04—Treating liquids
- G21F9/06—Processing
-
- 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
-
- 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
- G21F9/30—Processing
Definitions
- the present invention is in the field of the treatment of nuclear waste.
- waste containing sodium and a radioactive material it concerns in particular the treatment of waste containing sodium and a radioactive material, this waste being able to be generated, for example, during the purification process of the primary circuit of a reactor at Neutron.
- RNR-Na Fast Sodium Cooled
- Cesium is one of the main contaminants in the sodium that is the heat transfer medium of a "RNR-Na" nuclear reactor. For safety reasons, it is necessary to extract radioactive isotopes from cesium in order to reduce the radiological activity of sodium during or after reactor operation. For this, sodium contaminated with cesium is liquefied and filtered through a cesium trap.
- This trap generally comprises a porous structure protected by a sheath.
- This is for example a cross-linked vitreous carbon cartridge called "RVC cartridge” described below.
- the cesium trap Although during the filtration the cesium trap retains mainly cesium adsorption, it has to disadvantage of also keeping some of the sodium in its pores.
- the trap then constitutes a nuclear waste that presents a double risk in terms of safety and security:
- sodium is conventionally treated using a hydrolysis reaction (see for example the patent application FR 2,598,248).
- This reaction is most often conducted in a treatment cell or in an autoclave and consists essentially of reacting sodium in the liquid or solid state with water to produce sodium hydroxide.
- the solid sodium can be treated by a carbonation reaction, in which the soda obtained by the hydrolysis reaction is then converted into carbonate by adding carbon dioxide in gaseous form according to the following reactions:
- the carbonation treatment has the advantage of generating as final waste carbonate in solid form.
- the constraint related to the formation of thin layers means that this installation can not be used to treat sodium that is difficult to access, such as sodium contained in the porous structure of a cesium trap.
- Such cuts may cause contamination of the cutting tools by the radioactive material such as cesium 137.
- One of the aims of the invention is therefore to provide a method for treating a structure comprising a radioactive material and sodium which is difficult to access, this method having the particular advantages of being easily controllable, of producing solid waste which does not require further processing and minimize the operations to be carried out in the presence of radioactive material.
- the object of the invention thus relates to a sodium treatment method contained in the interconnected open pores of a structure placed in a sheath, the pores also containing a radioactive material.
- the method comprises the following successive steps: a) at least two slots are made along the entire length of the sheath; b) the sodium carbonate is converted to sodium carbonate by a carbonation reaction by contacting, via the slits, the structure with a reaction gas mixture comprising water vapor, carbon dioxide and an inert gas; to sodium, so that the expansion of the carbonate causes the opening of the sheath and the structure from the slits and the propagation of the carbonation reaction within the structure.
- a reaction gas mixture comprising water vapor, carbon dioxide and an inert gas
- the carbonation reaction is therefore conducted in such a way that the volume expansion of the carbonate advantageously makes it possible to cause the opening of the sheath from the slits which have been made there and then of the structure.
- step (a) and / or (b) of the process of the invention is most often carried out in a confinement enclosure such as a box. gloves or an armored cell in which, as indicated above, it is sought to limit the cutting operations.
- the treatment method according to the invention has the advantage of producing only waste solids (carbonate and radioactive material) and gaseous (hydrogen) that do not require further treatment.
- carbonate is a stable and inert product, especially with respect to air.
- the treatment method of the invention is easily controllable since the carbonation reaction can be slowed down by decreasing the proportion of water vapor in the reaction gas mixture, or even stopped by replacing this mixture with an inert gas.
- the release of heat or hydrogen or the dissemination of the radioactive material resulting from the carbonation reaction can thus be easily limited.
- the method of the invention also has the advantage that it allows to treat in a single operation a larger number of structures such as cesium traps, which is a significant economic advantage .
- the structure treated by the process of the invention (which is generally a filter element) is composed of crosslinked vitreous carbon and / or the radioactive material it contains comprises at least one of the radioactive isotopes.
- cesium such as cesium 137.
- the process of the invention is then more particularly intended for the treatment of a cesium trap such as a "RVC cartridge".
- a cesium trap such as a "RVC cartridge”.
- the reaction gas mixture which penetrates through the slits and possibly the ends of the structure is preferably constituted by a mole fraction of 0.5% to 5.5% of water vapor, of 5% to 25% of carbon dioxide, the remainder being inert gas (ie a chemically inert gas, such as, for example, a rare gas or nitrogen).
- This mixture causes a reaction with sodium, which has the result in particular of producing a carbonate composed essentially of sodium carbonate Na 2 CO 3 and / or sodium hydrogen carbonate NaHCO 3 .
- the gaseous reaction mixture is constituted by a 3.5 to 4% molar fraction of water vapor, from 10% to 20% of carbon dioxide. the remainder being inert gas, optionally heated to a temperature between 35 0 C and 45 0 C.
- Figure 1 is a graph showing the evolution of hydrogen production or sodium consumption during step (b) of the treatment method of the invention.
- Figures 2 to 5 reproduce photographs taken at different processing times as shown in Figure 1.
- the process of treatment of the invention is generally carried out in an enclosure for confining the carbonation reaction. Due to the presence of radioactive material within the structure to be treated, this enclosure is generally a glove box. This enclosure is associated with several modules fulfilling the following functions:
- the enclosure and its associated modules are described below.
- This enclosure makes it possible to confine the carbonation reaction and in particular the radioactive material that is contained in the structure before and after treatment.
- It generally comprises orifices and connections necessary for connection to a system for preparing the gaseous reaction mixture and the exhaust gas outlet.
- These orifices will preferably be provided with sintered stainless steel metal filters (for example those marketed by SYNTHERTEC) in order to avoid any dust extraction of possibly contaminated sodium carbonate.
- the structure to be treated may be placed in the enclosure on a support in order to optimize the contact with the reaction gas mixture and promote the expansion due to the carbonate.
- the carbonation reaction is carried out using a reaction gas mixture comprising water vapor, carbon dioxide and a gas inert with respect to the sodium (preferably nitrogen).
- the gas mixing module makes it possible to control the composition, the temperature (and therefore the hygrometry) as well as the flow rate of the gaseous reaction mixture.
- the humidity of the gas is below the saturation limit determined with safety margins to avoid any condensation of water on the walls of the treatment chamber, the inlet and outlet pipes and those used for the module. gas analysis. This may require heating the affected elements.
- This module makes it possible to determine the composition and hygrometry i) of the reaction gas mixture upstream of the treatment enclosure and ii) the gaseous effluents downstream of the enclosure, in particular to ensure the progress of the reaction. of carbonation.
- It generally comprises a chromatograph which makes it possible to measure the contents of inert gas (such as nitrogen), hydrogen, carbon dioxide or oxygen.
- inert gas such as nitrogen
- hydrogen such as nitrogen
- carbon dioxide or oxygen
- the hydrogen content upstream of the treatment chamber is a good indicator of the completeness of the carbonation reaction.
- Another parameter for monitoring the progress of the carbonation reaction is the evolution of the mass of the structure to be treated.
- a device allows to continuously evacuate the chamber gases while maintaining a slight overpressure.
- the associated evacuation line is conventionally provided with an anti-gas return device and a filtration device to prevent the dissemination of radioactive material into the outside atmosphere. 2 - Treatment of a "RVC cartridge".
- RVC cartridge for extracting the various radioactive isotopes of cesium (including cesium-137) from the sodium which is the heat-carrying component of a nuclear reactor of the type
- Such a cartridge generally consists of a cross-linked vitreous carbon (RVC) structure placed in a tubular steel casing closed at both ends by a filter, which can be wholly or partly removed so that the reaction gas mixture also enters through through these ends.
- RVC cross-linked vitreous carbon
- the crosslinked vitreous carbon is a material with open porosity which has an apparent density close to
- Part of the primary circuit of a "RNR-Na” reactor is filtered using a "RVC cartridge".
- the cartridge contains in its pores radioactive cesium and residual sodium.
- This cartridge is then placed in a glove box heated to a temperature that is a function of the moisture content used, in order to treat it using the method of the invention.
- the treatment temperature is generally between 15 0 C and 45 0 C.
- the weld points present on the sheath are removed by grinding or with the aid of the cutting tool in order to eliminate any point of resistance to the subsequent opening of the cartridge under the action of the expansion.
- carbonate Na 2 CC> 3 and NaHCC> 3 in the present case.
- the metal sheath is in the form of two semi-tubular shells that retain some cohesion because of the adhesive effect of the sodium contained in the RVC structure.
- a reaction gas mixture comprising, in a mole fraction, between 3.5 and 4% of water vapor, between 10 and 20% of carbon dioxide and the remainder of nitrogen is introduced into the glove box according to a continuous flow.
- the value of the flow is such that it allows to maintain within the treatment chamber a composition of the atmosphere favoring the continuous progression of the carbonation reaction. This value usually depends on the volume of the treatment chamber. In this case, the volume being equal to 550 liters, the flow rate is set at 8.7 liters / minute.
- the progress of the carbonation reaction is monitored using a chromatograph type gas analysis system which measures downstream of the glove box the hydrogen content (expressed as molar percentage of hydrogen evolved).
- the hydrogen content also makes it possible to calculate, in cumulative value, the treated sodium mass (expressed in grams) using the stoichiometric coefficients of the soda formation reaction: Na + H 2 O ⁇ NaOH + 1/2 H 2 .
- FIG. 1 The evolution as a function of time (expressed in days) of these parameters is reproduced in FIG. 1. It can vary according to the composition of the gaseous mixture, the structure to be treated and the rate of introduction of the gas mixture into the treatment chamber.
- FIGs 2, 3, 4 and 5 reproduce photographs taken at different stages of the carbonation reaction (as shown in Figure 1). After contacting the reaction gas mixture with the RVC structure via the slits and ends of the structure ( Figure 2), the carbonation reaction starts rapidly as evidenced by the evolution of hydrogen from the beginning of the treatment.
- the end of the treatment can be easily revealed by the absence of hydrogen evolution, despite the continued introduction of the reaction gas mixture into the treatment chamber.
- the "RVC cartridge” no longer presents a chemical risk. It can now integrate conventional channels for the disposal of contaminated waste in order to eliminate the remaining radiological risk due to radioactive isotopes of cesium.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Fire-Extinguishing Compositions (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0803541A FR2933227B1 (fr) | 2008-06-25 | 2008-06-25 | Procede de traitement d'une structure contenant du sodium et une matiere radioactive |
PCT/FR2009/000760 WO2010007236A1 (fr) | 2008-06-25 | 2009-06-24 | Procede de traitement d'une structure contenant du sodium et une matiere radioactive |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2311044A1 true EP2311044A1 (fr) | 2011-04-20 |
EP2311044B1 EP2311044B1 (fr) | 2012-03-07 |
Family
ID=39816746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09784222A Active EP2311044B1 (fr) | 2008-06-25 | 2009-06-24 | Procede de traitement d'une structure contenant du sodium et une matiere radioactive |
Country Status (9)
Country | Link |
---|---|
US (1) | US8206677B2 (fr) |
EP (1) | EP2311044B1 (fr) |
JP (1) | JP5419975B2 (fr) |
CN (1) | CN102077300B (fr) |
AT (1) | ATE548737T1 (fr) |
ES (1) | ES2383274T3 (fr) |
FR (1) | FR2933227B1 (fr) |
RU (1) | RU2492535C2 (fr) |
WO (1) | WO2010007236A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2982407B1 (fr) | 2011-11-03 | 2013-12-27 | Commissariat Energie Atomique | Procede de traitement d'une gaine contenant de l'hydrure de calcium fritte. |
US8871991B2 (en) | 2012-09-11 | 2014-10-28 | Ge-Hitachi Nuclear Energy Americas Llc | Method for stabilizing fuel containing reactive sodium metal |
FR3008222B1 (fr) * | 2013-07-08 | 2015-07-31 | Commissariat Energie Atomique | Procede de traitement d'une aiguille absorbante contenant du carbure de bore contamine et du sodium. |
CN207038182U (zh) * | 2017-03-29 | 2018-02-23 | 泰拉能源有限责任公司 | 铯收集器 |
CN113409978A (zh) * | 2021-06-16 | 2021-09-17 | 中核龙原科技有限公司 | 一种放射性废钠处理系统和方法 |
CN116867210A (zh) * | 2022-03-28 | 2023-10-10 | 富联精密电子(天津)有限公司 | 模组固定装置及信息处理系统 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5934995B2 (ja) * | 1977-07-15 | 1984-08-25 | 三菱原子力工業株式会社 | 放射性アルカリ金属除去回収装置 |
JPS5814100A (ja) * | 1981-07-20 | 1983-01-26 | 三菱重工業株式会社 | アルカリ金属付着構造物の洗浄方法 |
JPS6043447A (ja) * | 1983-08-17 | 1985-03-08 | Hitachi Ltd | 液体金属精製装置 |
JPS60114799A (ja) * | 1983-11-28 | 1985-06-21 | 動力炉・核燃料開発事業団 | 放射性ナトリウムの処理方法 |
JPH06100675B2 (ja) * | 1985-12-02 | 1994-12-12 | 川崎重工業株式会社 | 高速増殖炉における使用済燃料の洗浄方法 |
JPH0697276B2 (ja) * | 1985-12-03 | 1994-11-30 | 三菱重工業株式会社 | アルカリ金属廃棄物の処理装置 |
SU1347788A1 (ru) * | 1986-01-03 | 1991-07-30 | Предприятие П/Я В-8844 | Способ переработки радиоактивных отходов щелочных металлов |
FR2598248B1 (fr) * | 1986-04-30 | 1988-07-01 | Commissariat Energie Atomique | Procede de transformation de sodium en soude aqueuse et installation pour la mise en oeuvre de ce procede |
EP0281680B1 (fr) * | 1987-03-09 | 1992-03-11 | Rockwell International Corporation | Méthode pour nettoyer un assemblage de combustible épuisé |
JPH01308999A (ja) * | 1988-06-08 | 1989-12-13 | Power Reactor & Nuclear Fuel Dev Corp | 使用済燃料の貯蔵前処理方法 |
JPH04122897A (ja) * | 1990-09-14 | 1992-04-23 | Hitachi Ltd | 不純物除去装置 |
GB9510079D0 (en) * | 1995-05-18 | 1995-07-12 | British Nuclear Fuels Plc | Air extract system for a containment |
BE1010854A3 (fr) * | 1997-01-15 | 1999-02-02 | En Nucleaire Etablissement D U | Procede d'oxydation d'au moins un metal alcalin. |
RU2138867C1 (ru) * | 1998-07-07 | 1999-09-27 | Государственный научный центр РФ "Научно-исследовательский институт атомных реакторов" | Способ отмывки оборудования от натрия |
JP2000075096A (ja) * | 1998-08-31 | 2000-03-14 | Hitachi Ltd | 放射性廃棄物処理装置 |
US6175051B1 (en) * | 2000-04-04 | 2001-01-16 | Commodore Applied Technologies, Inc. | Deactivation of metal liquid coolants used in nuclear reactor systems |
UA57884C2 (uk) * | 1999-10-14 | 2003-07-15 | Дейвід БРЕДБЕРІ | Спосіб обробки радіоактивного графіту |
JP3400978B2 (ja) * | 2000-07-27 | 2003-04-28 | 新菱冷熱工業株式会社 | 使用済フィルタのアルミセパレータを分離する装置及び方法 |
FR2888231B1 (fr) * | 2005-07-06 | 2007-10-12 | Framatome Anp Sas | Installation de traitement de sodium metallique, notamment pour le traitement de sodium venant de reacteurs nucleaires a neutrons rapides. |
CN101231898B (zh) * | 2007-12-11 | 2011-07-20 | 中国原子能科学研究院 | 放射性钠在线净化用的冷阱 |
-
2008
- 2008-06-25 FR FR0803541A patent/FR2933227B1/fr not_active Expired - Fee Related
-
2009
- 2009-06-24 US US13/001,224 patent/US8206677B2/en active Active
- 2009-06-24 RU RU2010151354/07A patent/RU2492535C2/ru active
- 2009-06-24 WO PCT/FR2009/000760 patent/WO2010007236A1/fr active Application Filing
- 2009-06-24 EP EP09784222A patent/EP2311044B1/fr active Active
- 2009-06-24 ES ES09784222T patent/ES2383274T3/es active Active
- 2009-06-24 CN CN200980124602.5A patent/CN102077300B/zh active Active
- 2009-06-24 AT AT09784222T patent/ATE548737T1/de active
- 2009-06-24 JP JP2011515524A patent/JP5419975B2/ja active Active
Non-Patent Citations (1)
Title |
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See references of WO2010007236A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2011525979A (ja) | 2011-09-29 |
RU2492535C2 (ru) | 2013-09-10 |
JP5419975B2 (ja) | 2014-02-19 |
US8206677B2 (en) | 2012-06-26 |
FR2933227B1 (fr) | 2010-07-30 |
RU2010151354A (ru) | 2012-07-27 |
WO2010007236A1 (fr) | 2010-01-21 |
CN102077300A (zh) | 2011-05-25 |
CN102077300B (zh) | 2014-04-23 |
EP2311044B1 (fr) | 2012-03-07 |
ATE548737T1 (de) | 2012-03-15 |
US20110098521A1 (en) | 2011-04-28 |
FR2933227A1 (fr) | 2010-01-01 |
ES2383274T3 (es) | 2012-06-19 |
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