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1. 发明专利

JP2001213614A FUNCTIONAL CARBONIZED MATERIAL AND PRODUCTION PROCESS THEREOF 失效
公开(公告)号：JP2001213614A
公开(公告)日：2001-08-07
申请号：JP2000017411
申请日：2000-01-26
申请人： NATL RES INST OF AGRICULTURAL , TOSHIBA CORP
发明人： YASUMURA KEIJIRO , MATSUMARU KENICHI , YOSHIDA HIROAKI , KOIZUMI TAKESHI , YAMAOKA MASARU
IPC分类号： B09B3/00 , B01J20/20 , C01B31/02 , C02F1/28 , C02F11/10 , C09K17/02 , C10B53/00
摘要： PROBLEM TO BE SOLVED: To provide a functional carbonized material which can effectively adsorb and fix anionic species such as nitrate nitrogen that causes eutrophication of rivers or lakes. SOLUTION: This functional carbonized material is characterized by containing positively charged cationic species fixed on the surface and/or inside of the substrate made of a carbonized material from an organic substance.

2. 发明专利

JPH11118982A PROCESSING METHOD FOR SPENT NUCLEAR FUEL 失效
公开(公告)号：JPH11118982A
公开(公告)日：1999-04-30
申请号：JP28583697
申请日：1997-10-17
申请人： TOSHIBA CORP
发明人： KONDO NARUHITO , MATSUMARU KENICHI , FUJITA REIKO , FUJIE MAKOTO
IPC分类号： G21C19/44 , C25C3/34 , G21C19/48
摘要： PROBLEM TO BE SOLVED: To provide a processing method for spent nuclear fuel capable of reducing the accompanying quantity of metal unclear fuel components to the components of clad and the like to be waste, improving the recovery fraction of metal nuclear fuel component and reducing the quantity of waste of such component as clad. SOLUTION: Metal nuclear fuel material from which alloy clad is melted and separated by heating the processing object in the temperature over the melting point of alloy-made clad and below the melting point of the metal nuclear fuel material (in the melting separation process 2 of clad, etc.), alloy clad or end plugs is removed in the melting separation process 2 of clad is dipped in slat consisting of alkaline metal chloride, alkaline earth metal chloride or mixture of them in molten state to dissolve the metal nuclear fuel material. On the other hand, uranium, uranium and plutonium or uranium, plutonium and transuranium elements is precipitated (molten salt electrolyzing process 5). Then the processing object is taken out of the salt and the chloride or alkaline earth metals adhering to the precipitated elements is evaporated and separated by heating in normal or reduced pressure state (evaporation and separation process 6 and 9).

3. 发明专利

JPH06308284A MEMBER FEEDER 失效
公开(公告)号：JPH06308284A
公开(公告)日：1994-11-04
申请号：JP9810693
申请日：1993-04-23
申请人： TOSHIBA CORP , SHIMADZU CORP
发明人： HANAMI HIDENORI , MATSUMARU KENICHI
IPC分类号： G21C21/02 , B23K9/00
摘要： PURPOSE:To prevent air from mixing into the inactive gas atmosphere in an airtight chamber to the utmost with a relatively simple structure separately requiring no driving device outside the airtight chamber. CONSTITUTION:A member feeder is provided with a main container 1 capable of being substituted with the inactive gas atmosphere and having a connection section 5, a cylinder container 7 airtightly connected to the main container 1 and having a pair of inactive gas feed exhaust pipes 11, 12 and an opening/ closing cover 9, a member storage sheath 13 having a member reception port 14 slidably stored in the cylinder container 7 and opened toward the opening/ closing cover 9 and gas entrances 15, 16 communicated with the inactive gas feed exhaust pipes 11, 12 and opened with the front end face advanced or retreated when the inactive gas is introduced into the cylinder container 7 from one inactive gas feed exhaust pipe 15 or 16, and a member inserting rod 17 slidably stored in the member storage sheath 13 and advanced or retreated when the inactive gas is introduced into the member storage sheath 17 from one gas entrance 15 or 16.

4. 发明专利

JPH07167985A MOLTEN SALT ELECTROLYTIC REFINING DEVICE 失效
公开(公告)号：JPH07167985A
公开(公告)日：1995-07-04
申请号：JP31623493
申请日：1993-12-16
申请人： TOSHIBA CORP
发明人： KOBAYASHI TSUGUYUKI , MATSUMARU KENICHI , MOTOMIYA KAYOKO , FUJIKI KENJI , FUJITA REIKO
IPC分类号： G21C19/44 , C25C3/34
摘要： PURPOSE:To reduce the undissolved loss quantity of uranium in spent fuel so as to facilitate the recovery of noble metal fission products and to improve an operation rate. CONSTITUTION:A molten metal phase 24 and a molten salt phase 25 are stored in an electrolytic cell 1. In the electrolytic cell 1, partition walls 12 for partitioning the molten salt phase 25 into a positive electrode salt bath 25a and negative electrode salt bath 25b are suspended from an upper lid 3. The partition wall 12 is provided with partition wall fall preventing wire gauze 13. The rotary shaft 7 of an agitator 6 is provided in the electrolytic cell 1, piercing the upper lid 3. A positive electrode basket 8 submerged in the positive electrode salt bath 25, and a receiving plate 9 and an agitating blade 10 submerged in the molten metal phase 24 are fitted to the rotary shaft 7. The deposit recovery device 39 of a negative electrode deposit continuous recovery system 17 is submerged in the negative electrode salt bath 25b.

5. 发明专利

JPH06138288A METHOD AND DEVICE FOR WELDING UPPER END PLUG OF FUEL ELEMENT 失效
公开(公告)号：JPH06138288A
公开(公告)日：1994-05-20
申请号：JP29261392
申请日：1992-10-30
申请人： TOSHIBA CORP , SHIMADZU CORP
发明人： HANAMI HIDENORI , MATSUMARU KENICHI
IPC分类号： B23K9/00 , B23K9/02 , B23K37/00 , G21C21/02
摘要： PURPOSE:To simplify processes from supplying members to welding an upper end plug and to enhance productivity while shorting processing time. CONSTITUTION:A device for welding the upper end plug of a fuel element has a main welding chamber 1 into which a fuel element 2 can hermetically be inserted, welding equipment 14 mounted in the main welding chamber, a plenum spring feeder 8 and an upper end plug feeder 9 both of which are collectively and selectively movably provided in connection with the main welding chamber on the axis same as the fuel element 2, a vacuum device 5 for evacuating the inside of the main welding chamber, and an inert gas supply system 7 for introducing inert gas into the main welding chamber.

6. 发明专利

JP2004361418A Melted salt electrolytic re-treatment method of spent fuel 有权
标题翻译：稀释燃料的电解盐电解再处理方法
公开(公告)号：JP2004361418A
公开(公告)日：2004-12-24
申请号：JP2004241254
申请日：2004-08-20
申请人： Tokyo Electric Power Co Inc:The , Toshiba Corp , Toshiba Plant Systems & Services Corp , 東京電力株式会社 , 東芝プラントシステム株式会社 , 株式会社東芝
发明人： MIZUGUCHI KOJI , SHOJI YUICHI , MATSUMARU KENICHI , KAMOSHITA HIROSHI
IPC分类号： G21C19/44
CPC分类号： Y02W30/882
摘要： PROBLEM TO BE SOLVED: To provide a melted salt electrolytic re-treatment method capable of recovering a higher-quality fuel component having no contamination of impurities such as a noble metal element, concerning re-treatment of a spent fuel by melted salt electrolysis. SOLUTION: In this melted salt electrolytic re-treatment method, the melted salt is loaded into a conductive crucible, and electrolysis of the spent fuel is performed by using the crucible as a positive electrode, and the fuel is melted at the positive electrode, and a required component is recovered at a solid negative electrode. In the method, the solid negative electrode has a rod shape with an elliptic section, and the electrolysis is performed while rotating the negative electrode around the axis. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种熔融盐电解再处理方法，该方法能够回收没有污染杂质的高质量燃料成分，例如贵金属元素，涉及通过熔化盐再处理乏燃料电解。解决方案：在这种熔融盐电解再处理方法中，将熔融的盐装载到导电坩埚中，通过使用坩埚作为正极进行废燃料的电解，并将燃料以正极电极，并且在固体负极处回收所需的组分。在该方法中，固体负极具有椭圆形截面的棒状，并且在使负极绕轴线旋转的同时进行电解。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JPH1164577A FUSED SALT ELECTROLYTIC REPROCESSING METHOD FOR SPENT FUEL 失效
公开(公告)号：JPH1164577A
公开(公告)日：1999-03-05
申请号：JP22047797
申请日：1997-08-15
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： MIZUGUCHI KOJI , SHOJI YUICHI , MATSUMARU KENICHI , KAMOSHITA HIROSHI
IPC分类号： G21C19/44
摘要： PROBLEM TO BE SOLVED: To provide a fused salt electrolytic reprocessing method recovering fuel components of higher quality without intermixing impurities such as noble metal elements and suppressing corrosion of crucible base material forming an electrolyzer so as to prolong a service life. SOLUTION: In this reprocessing method, decanned spent fuel is dissolved while being mixed with a reducing agent in a positive electrode basket, and electrode potential is controlled to selectively deposit noble metal ion to a negative electrode for recovery. After recovering noble metal ion, metal ion in fused salt is oxidized by oxygen (so as to make uranous ion into uranyl ion, for instance) and deposited as an oxide or a double oxide to the negative electrode.

8. 发明专利

JPH0990089A METHOD AND DEVICE FOR REPROCESSING SPENT OXIDE FUEL 失效
公开(公告)号：JPH0990089A
公开(公告)日：1997-04-04
申请号：JP24159795
申请日：1995-09-20
申请人： TOSHIBA CORP
发明人： MIZUGUCHI KOJI , SHOJI YUICHI , KOBAYASHI TSUGUYUKI , MATSUMARU KENICHI
IPC分类号： G21C19/44 , C25C3/34 , C25C7/02 , C25C7/08
摘要： PROBLEM TO BE SOLVED: To increase dissolution speed and the electrolysis recovering speed of each component by simultaneously performing the dissolution of oxide fuel in dissolving salt and electrolysis setting the spent oxide fuel at the positive electrode. SOLUTION: System temperature is kept at about 700 deg.C, crashed spent oxide fuel 18 is thrown in a positive electrode basket 17 dipped in molten state chloride 16 in a melting pot 15 made of graphite and the like, an oxidizing gas 20 for reaction is blown into the molten chloride 16 with a gas blower pipe 19, and electrolyzes with a cathode of solid electrode 21 of graphite and the like and an anode of the basket 17 using a power source 22. By this, the dissolution of fuel to chloride 16 and electrolysis are done simultaneously. Thus, the speed of the whole treatment process is greatly improved and the consumption of reaction gas used conventionally in the dissolution process can be suppressed.

9. 发明专利

JPH06308283A UPPER END PLUG WELDING DEVICE FOR NUCLEAR FUEL ROD 失效
公开(公告)号：JPH06308283A
公开(公告)日：1994-11-04
申请号：JP9810793
申请日：1993-04-23
申请人： TOSHIBA CORP , SHIMADZU CORP
发明人： HANAMI HIDENORI , MATSUMARU KENICHI
IPC分类号： B23K9/00 , B23K9/02 , B23K37/00 , G21C21/02
摘要： PURPOSE:To provide an upper end plug welding device capable of preventing air from mixing into the inactive gas atmosphere in a welding chamber to the utmost. CONSTITUTION:An upper end plug welding device is provided with an upper end plug feeder 9 airtightly connected to a main welding chamber 1 selectively movably on the same axis as the axis of a cover tube 2 inserted and fitted into the main welding chamber 1, the shift drive mechanism 12 of the upper end plug feeder 9, an end plug push rod 21 stored in the upper end plug feeder 9 slidably in the axial direction and fitted with an end plug hold section rotatably around the axis at the tip portion, an end plug push rod drive mechanism 33 provided on the upper end plug feeder 9, and a transmission mechanism rotatively driven by the end plug push rod drive mechanism 33 and converting the rotating motion of a rotary shaft penetrating the upper end plug feeder 9 into the motion in the axial direction of the end plug push rod 21.

10. 发明专利

JPH04369498A REPROCESSING METHOD FOR SPENT FUEL 失效
公开(公告)号：JPH04369498A
公开(公告)日：1992-12-22
申请号：JP14439891
申请日：1991-06-17
申请人： TOSHIBA CORP
发明人： MATSUMARU KENICHI , KUROKI TOSHITAKA
IPC分类号： G21C19/44
摘要： PURPOSE:To assure sufficient electric contact and stabilize positive electrode dissolution by putting a metal particles unsoluble in the positive electrode dissolution in the positive electrode side basket together with the spent fuel and reprocessing them. CONSTITUTION:By putting spent fuel tips 16 in a positive electrode side basket 4 to submerge in molten chloride 3 and impressing voltage in the basket 4, the molten component is deposited on a rod shape negative electrode 5 and recovered. In this process, metal particles 17 which area unsoluble in the positive electrode dissolution, is put in the basket together with the fuel tips 16, and then the gap in the basket if filled with the metal particles 17 so that it becomes easy for electric current pass from the basket 4 to fuel tips 16. As the result, the electric contact between the basket 4 and the fuel tip 16 and between the fuel tips 16 is improved. Thus, the electric potential impressed from the basket 4 to the fuel tips 16 partly varies and an element unnecessary to melt is not melted and stable positive electrode dissolution can be attained.

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