WO2005014888A1 - 酸化物電解法用の電解装置 - Google Patents
酸化物電解法用の電解装置 Download PDFInfo
- Publication number
- WO2005014888A1 WO2005014888A1 PCT/JP2004/010478 JP2004010478W WO2005014888A1 WO 2005014888 A1 WO2005014888 A1 WO 2005014888A1 JP 2004010478 W JP2004010478 W JP 2004010478W WO 2005014888 A1 WO2005014888 A1 WO 2005014888A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrolysis
- cathode
- anode
- oxide
- shaped
- Prior art date
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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
- G21C19/46—Aqueous processes, e.g. by using organic extraction means, including the regeneration of these means
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/129—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds by dissociation, e.g. thermic dissociation of titanium tetraiodide, or by electrolysis or with the use of an electric arc
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S204/00—Chemistry: electrical and wave energy
- Y10S204/07—Current distribution within the bath
Definitions
- the present invention provides a plurality of types of anodes and a common cathode, and uses a combination of one of the anodes and the cathode as main electrolysis and a combination of at least one of the other anodes and the cathode as auxiliary electrolysis.
- the present invention relates to an electrolysis apparatus for an oxide electrolysis method that enables efficient management of deposits. This technology is useful for electrolysis systems in oxide electrolysis, among dry reprocessing methods using molten salt electrolysis for spent nuclear fuel.
- Electrolytic techniques include oxide electrolysis and metal electrolysis. If the chemical form of uranium or plutonium to be recovered is an oxide, the oxide electrolysis is used.
- the oxide electrolysis method is a method of recovering uranium and plutonium oxides through a simultaneous electrolysis step, a chlorination dissolution step, and a MOX recovery step.
- spent nuclear fuel is loaded in the lower part of a crucible that also serves as an anode, and then electrolysis is performed with the cathode installed in the upper part.
- electrolysis is performed with the cathode installed in the upper part.
- uranium oxide contained in a large amount in spent nuclear fuel is dissolved in the molten salt by anodic oxidation and, at the same time, is precipitated and recovered on the cathode surface by cathodic reduction (simultaneous electrolysis step).
- the crucible accommodating the object to be treated also serves as the anode
- the cathode is charged in the molten salt
- electrolysis is performed between the anode (crucible) and the cathode.
- anode and a cathode are charged in a crucible and electrolysis is performed between them.
- the prior art as described above has the following problems to be solved.
- the current density is uniform and the bias of the electrodeposits is less likely to occur in the steps other than the simultaneous electrolysis step, since the distance between the cathode and the anode is kept uniform.
- the distance between the electrodes is not uniform because the surface of the spent nuclear fuel loaded at the bottom of the crucible becomes the anode. For this reason, the current density distribution on the cathode surface is biased, which causes the electrodeposits to be biased.
- a crucible material that also serves as the anode uses pyrographite, which has excellent corrosion resistance, coated (deposited) on graphite cloth.
- chlorine gas there is also the effect of the use conditions of high-temperature molten salt, and the use time is about 1000 hours. For this reason, the crucible needs to be changed frequently, leading to a reduction in the processing speed.
- the bonding strength of uranium oxide and plutonium oxide deposited in the form of oxide with the electrode surface is lower than the bonding strength in a metal state such as plating. Therefore, in the prior art, However, if the deposits concentrate at one location, the likelihood of the deposits falling off the cathode surface during the electrolysis operation increases due to the stirring effect of the various process gases blown into the molten salt.
- An object of the present invention is to provide an electrolytic apparatus for oxide electrolysis that can prevent bias of an electrodeposit. Another object of the present invention is to provide an electrolysis apparatus capable of improving the processing speed and the crucible durability, and capable of recycling spent nuclear fuel by a dry reprocessing method on a commercial scale.
- a plurality of types of anodes having different shapes and arrangements and a common cathode are installed in an electrolytic cell, and a combination of one type of the anode and the cathode is used as main electrolysis, and the rest of the anode is used.
- An electrolytic device for an oxide electrolysis method wherein a combination of at least one of the above and a cathode is used as auxiliary electrolysis.
- the present invention also provides an annular electrolytic cell made of a metal material in consideration of a criticality management method by shape management, a high-frequency induction coil for heating an object to be processed in the electrolytic cell, and a formed annular shape.
- An annular anode installed at the bottom of the space, a bar-shaped anode and a bar-shaped cathode vertically inserted into the annular space, and a parallel arrangement electrode comprising a combination of a bar-shaped anode and a bar-shaped cathode;
- An electrolyzer for oxide electrolysis characterized in that one of upper and lower electrodes arranged in combination with a rod-shaped cathode is used as main electrolysis and the other is used as auxiliary electrolysis.
- a typical example of the parallel arrangement electrodes is an alternating arrangement electrode in which anodes and cathodes are alternately arranged.
- the rod-shaped cathode is rotatably supported, a rotation drive mechanism is additionally provided, and the rod-shaped cathode rotates continuously during the electrolysis operation.
- the present invention uses such an electrolysis apparatus, wherein an object to be treated in the annular electrolytic cell is a molten salt containing spent nuclear fuel, and uranium oxide contained in the spent nuclear fuel is subjected to anodic oxidation.
- an object to be treated in the annular electrolytic cell is a molten salt containing spent nuclear fuel
- uranium oxide contained in the spent nuclear fuel is subjected to anodic oxidation.
- uranium oxide is dissolved /
- the MOX recovery process in which the segregation of uranium oxide is suppressed by mixing the uranium oxide and sedimentation of uranium oxide using the parallel-arranged electrodes for auxiliary electrolysis, the parallel-arranged electrodes are used for main electrolysis.
- This is a method for reprocessing spent nuclear fuel by the oxide electrolysis method, in which MOX electrodeposition is performed, and electrodeposits dropped from the cathode are electrolytically dissolved by using upper and lower electrodes for auxiliary electrolysis.
- FIG. 1 is a conceptual diagram of an electrolysis apparatus for an oxide electrolysis method according to the present invention.
- FIG. 2A is a cross-sectional view showing one embodiment of an electrolysis device for an oxide electrolysis method according to the present invention.
- FIG. 2B is a longitudinal sectional view showing one embodiment of the electrolysis device for an oxide electrolysis method according to the present invention.
- FIG. 3 is an explanatory view showing an electrode arrangement state in the embodiment of FIG. 2.
- FIG. 4 is a schematic explanatory view of a test device for confirming the prevention of electrodeposition bias due to electrode arrangement.
- FIG. 5 is a graph showing an example of the results of a bias prevention confirmation test performed by the test apparatus of FIG. 4.
- FIG. 6 is a schematic explanatory view of a test device for confirming the prevention of electrodeposition bias due to cathode rotation.
- FIG. 7 is a graph showing an example of the results of a bias prevention confirmation test performed by the test apparatus of FIG. 6.
- FIG. 1 shows the concept of an electrolysis apparatus for an oxide electrolysis method according to the present invention.
- a common cathode 12 two types of anodes having different shapes and arrangements (here, a first anode 14 provided below the cathode 12, and a second anode 16 provided side by side with the cathode 12). ), Connect the first electrolysis controller 18 between the cathode 12 and the first anode 14, and connect the second electrolysis controller 20 between the cathode 12 and the second anode 16.
- the number of cathodes and each anode may be one or more.
- the object to be treated 22 in the electrolytic cell is subjected to the electrolytic treatment.
- the main electrolysis and the auxiliary electrolysis can be used for each electrolysis process.
- upper and lower electrodes (combination of the cathode 12 and the first anode 14) are used as main electrolysis, and parallel electrodes (combinations of the cathode 12 and the second anode 16) are used. Is used as auxiliary electrolysis. Conversely, in the M ⁇ X recovery process, the And upper and lower electrodes are used as auxiliary electrolysis.
- FIG. 2 is a cross-sectional view showing one embodiment of the electrolysis apparatus for an oxide electrolysis method according to the present invention, wherein A is a transverse section and B is a longitudinal section.
- FIG. 3 is an explanatory diagram showing the electrode arrangement state. This is an electrolyzer for the oxide electrolysis method for recovering uranium noropenium by dry reprocessing of spent nuclear fuel using molten salt electrolysis technology.
- annular electrolytic cell is adopted in consideration of a criticality management system based on shape management.
- the annular electrolytic cell 30 is composed of an outer crucible 32 and an inner crucible 33 that are concentrically positioned, and a to-be-processed object (molten salt containing spent fuel) 34 is accommodated in an annular space formed by them.
- a high frequency induction coil 36 for heating an object to be processed is provided outside the annular electrolytic cell 30.
- the outer crucible 32 and the inner crucible 33 are provided with a cooling medium channel 38 therein, and the cooling medium is circulated through a cooling medium port 39 to forcibly cool the outer and inner crucibles.
- the thickness of the annular space in which the object to be treated enters is about 16 cm when evaluated from the viewpoint of maintenance.
- the molten salt depth must be at least lm. Therefore, to evaluate the feasibility of this electrolysis apparatus, it is important to examine the optimal electrode shape and arrangement.
- an annular anode 40 is provided at the bottom of an annular space, and a bar-shaped anode 41 and a bar-shaped cathode 42 are alternately charged from above in the annular space. Then, an electrode pair of the bar-shaped anode 41 and the bar-shaped cathode 42 (this is called “alternately arranged electrode”) and an electrode pair of the annular anode 40 and the bar-shaped cathode 42 (this is called “upper and lower electrode”) And one electrode pair is used as main electrolysis, and the other electrode pair is used as auxiliary electrolysis.
- annular anodes As the rod 40, the rod-shaped anode 41, and the rod-shaped cathode 42, from the viewpoint of corrosion resistance, for example, those obtained by coating (evaporating) a graphite surface with pirographite are optimal.
- the annular anode is shown in FIG. 2 and the cooling medium flow path in the crucible is omitted in FIG.
- a cylindrical neutron absorber (for example, BC) 44 is provided inside the inner crucible 33.
- a gas pipe 46 for supplying a process gas is inserted into the annular space in a vertical direction in parallel with the rod-shaped electrode.
- the material to be treated is a molten salt containing spent nuclear fuel.
- molten salt for example, a mixture of sodium chloride (NaCl) and cesium chloride (CsCl) in a molar ratio of 1: 2 is used.
- the vertically arranged electrodes are used as main electrolysis, and the alternately arranged electrodes are used as auxiliary electrolysis.
- the uranium oxide in the fuel is efficiently dissolved in the molten salt by the vertically arranged electrodes, and the concentration of current density at the cathode tip is suppressed by the alternately arranged electrodes.
- the ability to deposit uranium ions over the entire cathode surface can be achieved.
- the MOX recovery step uranium oxide recovery step and uranium oxide + plutonium oxide recovery step
- alternately arranged electrodes are used as main electrolysis and upper and lower electrodes are used as auxiliary electrolysis.
- the uranium oxide ions and the plutonium oxide ions dissolved in the molten salt can be uniformly deposited on the cathode surface by the alternately arranged electrodes.
- the electrodeposits on the cathode surface fall off due to the agitation effect of the process gas, etc.
- the uranium oxide is anodically dissolved by the vertically arranged electrodes
- the plutonium oxide is chlorinated and dissolved by the chlorine gas generated by the anode reaction. be able to.
- a force in which a bar-shaped cathode and a bar-shaped anode are alternately arranged may be arranged such that a bar-shaped anode is arranged on both sides of one bar-shaped cathode, and a plurality of units are arranged as one unit.
- the rod-shaped cathode is not rotated, but a configuration in which a rotating function is added is also effective.
- a rotating function is added to the rod-shaped cathode, the effect of suppressing the current density distribution on the electrode surface and preventing the electrodeposit from being biased can be obtained.
- the molten salt is agitated by the rotation function, the element concentration distribution in the molten salt, which is one of the factors contributing to the bias of electrodeposits, is suppressed. Is also expected to be effective.
- Fig. 4 shows an overview of the test equipment
- Table 1 shows the test conditions
- Fig. 6 shows the test results.
- a common columnar cathode 52 and two columnar anodes 53 located on both sides of the same were loaded into a box-shaped electrolytic cell 50 from above.
- a rectangular parallelepiped anode 54 is installed at the bottom of the battery, and an electrolysis controller 56 for main electrolysis is placed between the cylindrical cathode 52 and the rectangular parallelepiped anode 54, and between the cylindrical cathode 52 and the two cylindrical anodes 53.
- the electrolysis control units 57 for auxiliary electrolysis are connected to each other.
- a copper sulfate solution was used as an electrolyte for convenience.
- a test was conducted with the ratio of the main electrolysis to the auxiliary electrolysis (electricity ratio) as a parameter. As shown in Fig. 5, the effect of auxiliary electrolysis on the prevention of electrodeposition bias was confirmed. Under the condition without auxiliary electrolysis, the deposits are concentrated at the lower part of the cathode, that is, the part near the cuboid anode. However, alternating cylindrical anodes When the auxiliary electrolysis is added by adding the electrode, the thickness of the electrodeposit under the cathode becomes thinner and the thickness of the electrodeposit above the cathode increases. This is because the concentration of deposits under the cathode is reduced by adding auxiliary electrolysis.
- the test results of the effect of preventing the electrodeposition from being biased by the rotation of the cathode will be described below.
- Figure 6 shows an overview of the test equipment
- Table 2 shows the test conditions
- Figure 7 shows the test results.
- the test apparatus has a structure in which a cylindrical cathode 64 and a cylindrical anode 66 are charged into a crucible 62 in a protective container 60, and the molten salt in the crucible 62 is heated by a resistance heater 68.
- a rotation function is provided by attaching a rotation driving device 70 to the columnar cathode 64.
- the electrolysis controller 72 was connected between the columnar cathode 64 and the columnar anode 66 to perform electrolysis of the molten salt.
- the cathode 64 and the anode 66 are arranged side by side, so the distance between the cathode and the anode differs depending on the position of the electrode surface.
- the current density on the cathode surface faces the anode due to the effect of resistance. It is easier to concentrate on the side.
- the cathode is not rotating, the current density on the side facing the anode increases, and the deposits concentrate on the side facing the anode and deposit thickly.
- the cathode is rotated, the distance between each part of the cathode surface and the anode differs instantaneously. However, on average, the distance between the cathode and the anode is the same at each position.
- a plurality of types of anodes having different shapes and arrangements and a common cathode are installed in an electrolytic cell, and a combination of one type of anode and the cathode is used as main electrolysis,
- This is an electrolysis device for the oxide electrolysis method using a combination of at least one of the above and a cathode as an auxiliary electrolysis.
- electrodeposition on the lower part of the cathode is a concern in electrolysis devices using large electrodes on a commercial scale. The bias of the object can be suppressed.
- the introduction of a criticality control method by shape control and the adoption of a cold-crucible high-frequency induction heating method allow the crucible to be made of metal, thereby enabling the electrolysis apparatus to be increased in size. Since the electrolysis can be performed not only in the batch mode but also in the continuous mode, the processing speed is greatly improved.
- the criticality management method based on shape management it is not necessary to determine the amount of nuclear material in the crucible for each process, so that the operation time of the electrolyzer can be reduced.
- the distance between the cathode and the cathode is apparently uniform in the “parallel arrangement electrode” structure, so that the thickness of the electrodeposit can be made as uniform as possible. It works.
- the effect of suppressing the concentration distribution in the object to be processed is also expected in the "upper and lower electrode", and the bias of the electrodeposit is prevented compared to the non-rotating condition. Effect.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Electrolytic Production Of Metals (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20040747865 EP1652971B1 (en) | 2003-08-06 | 2004-07-23 | Oxide electrolyzing electrolysis device |
US10/528,883 US7635421B2 (en) | 2003-08-06 | 2004-07-23 | Electrolytic apparatus for use in oxide electrowinning method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-206262 | 2003-08-06 | ||
JP2003206262A JP3949620B2 (ja) | 2003-08-06 | 2003-08-06 | 酸化物電解法用の電解装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005014888A1 true WO2005014888A1 (ja) | 2005-02-17 |
Family
ID=34131379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/010478 WO2005014888A1 (ja) | 2003-08-06 | 2004-07-23 | 酸化物電解法用の電解装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7635421B2 (ja) |
EP (1) | EP1652971B1 (ja) |
JP (1) | JP3949620B2 (ja) |
RU (1) | RU2292407C2 (ja) |
WO (1) | WO2005014888A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8969908B2 (en) | 2006-04-04 | 2015-03-03 | Cree, Inc. | Uniform emission LED package |
EP2740809A1 (de) * | 2012-12-06 | 2014-06-11 | Siemens Aktiengesellschaft | Anordnung und Verfahren zum Eintragen von Wärme in eine Ansammlung von Erzen und/oder Sanden mittels elektromagnetischer Induktion |
WO2015153161A1 (en) * | 2014-04-03 | 2015-10-08 | Novartis Ag | Electrochemical system for disinfecting and cleaning contact lenses |
US10550489B2 (en) * | 2016-07-11 | 2020-02-04 | Uchicago Argonne, Llc | Actinide and rare earth drawdown system for molten salt recycle |
US11894154B2 (en) | 2022-02-02 | 2024-02-06 | Curio Solutions Llc | Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium |
US20230279572A1 (en) * | 2022-04-26 | 2023-09-07 | Case Western Reserve University | System and process for sustainable electrowinning of metal |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07316866A (ja) * | 1994-05-19 | 1995-12-05 | General Motors Corp <Gm> | マグネシウム金属の製造方法 |
JPH11148996A (ja) * | 1997-11-18 | 1999-06-02 | Toshiba Corp | 溶融塩電解精製装置 |
JP2002357696A (ja) * | 2001-06-04 | 2002-12-13 | Toshiba Corp | 固体廃棄物の除染方法及びその装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2560896B1 (fr) | 1984-03-12 | 1989-10-20 | Pechiney | Procede d'obtention d'un metal par electrolyse d'halogenures en bain de sels fondus comportant un double depot simultane et continu et dispositifs d'application |
US5650053A (en) * | 1995-11-24 | 1997-07-22 | The United States Of America As Represented By The United States Department Of Energy | Electrorefining cell with parallel electrode/concentric cylinder cathode |
JP3597741B2 (ja) | 1999-11-15 | 2004-12-08 | 核燃料サイクル開発機構 | 溶融塩電解用処理装置および電解処理方法 |
JP3463931B2 (ja) * | 2001-05-25 | 2003-11-05 | 核燃料サイクル開発機構 | 使用済核燃料の乾式再処理法及び乾式再処理法に用いる誘導加熱装置。 |
-
2003
- 2003-08-06 JP JP2003206262A patent/JP3949620B2/ja not_active Expired - Fee Related
-
2004
- 2004-07-23 RU RU2005110194A patent/RU2292407C2/ru not_active IP Right Cessation
- 2004-07-23 US US10/528,883 patent/US7635421B2/en not_active Expired - Fee Related
- 2004-07-23 EP EP20040747865 patent/EP1652971B1/en not_active Expired - Fee Related
- 2004-07-23 WO PCT/JP2004/010478 patent/WO2005014888A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07316866A (ja) * | 1994-05-19 | 1995-12-05 | General Motors Corp <Gm> | マグネシウム金属の製造方法 |
JPH11148996A (ja) * | 1997-11-18 | 1999-06-02 | Toshiba Corp | 溶融塩電解精製装置 |
JP2002357696A (ja) * | 2001-06-04 | 2002-12-13 | Toshiba Corp | 固体廃棄物の除染方法及びその装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1652971A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP3949620B2 (ja) | 2007-07-25 |
US20060151326A1 (en) | 2006-07-13 |
US7635421B2 (en) | 2009-12-22 |
EP1652971A1 (en) | 2006-05-03 |
RU2292407C2 (ru) | 2007-01-27 |
EP1652971A4 (en) | 2007-03-14 |
JP2005054209A (ja) | 2005-03-03 |
RU2005110194A (ru) | 2006-02-10 |
EP1652971B1 (en) | 2012-11-28 |
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