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公开(公告)号：US20180079663A1
公开(公告)日：2018-03-22
申请号：US15562750
申请日：2016-03-30
发明人： Shingo MIYAMOTO , Mami HIROSE , Mamoru IWASAKI , Hideyuki KOMORI , Motohiro AIZAWA , Nobuyuki OTA , Takako SUMIYA , Kazushige ISHIDA
CPC分类号： C02F1/4695 , B01D61/48 , C02F1/469 , C02F2101/203 , C25C1/08 , C25C7/04 , G21F9/06 , G21F9/12
摘要： A method in which an anode chamber and a cathode chamber are separated by a cation exchange membrane, an acid solution containing metal ions is introduced into the anode chamber, a cathode solution is introduced into the cathode chamber, and a current is applied across the anode and the cathode, whereby the metal ions in the solution in the anode chamber pass through the cation exchange membrane, move into the cathode solution, and precipitate as metal onto the cathode, wherein there are minimal instances where electrodeposition is impossible or the electrodeposition rate decreases. Pre-adding a salt of the acid contained in the acid solution makes it possible to suppress concentration-diffusion of the acid from the acid solution. Adding a salt of the acid into the cathode chamber makes it possible to reduce the impressed voltage, reduce the amount of hydrogen generated on the cathode, and reduce the amount of power.
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2.发明申请TREATMENT METHOD AND TREATMENT APPARATUS OF IRON-GROUP METAL ION-CONTAINING LIQUID, METHOD AND APPARATUS FOR ELECTRODEPOSITING Co AND Fe, AND DECONTAMINATION METHOD AND DECONTAMINATION APPARATUS OF RADIOACTIVE WASTE ION EXCHANGE RESIN 审中-公开含铁金属离子液体的处理方法和处理装置，用于电沉积Co和Fe的方法和装置，以及放射性废物离子交换树脂的去除方法和去除装置公开(公告)号：US20160247589A1
公开(公告)日：2016-08-25
申请号：US15030781
申请日：2014-10-20
发明人： Shingo MIYAMOTO , Mamoru IWASAKI , Mami HIROSE , Motohiro AIZAWA , Nobuyuki OTA , Takako SUMIYA , Kazushige ISHIDA
CPC分类号： G21F9/12 , C25C1/06 , G21F9/00 , G21F9/001 , G21F9/06 , G21F9/30 , G21Y2002/60 , G21Y2004/601
摘要： In an electrodeposition treatment of an iron-group metal ion-containing liquid, without being influenced by the properties of the iron-group metal ion-containing liquid, iron-group metal ions are efficiently removed from the liquid by precipitation. An anode chamber 2A provided with an anode 2 and a cathode chamber 3A provided with a cathode 3 are separated from each other by a cation exchange membrane 5, an iron-group metal ion-containing liquid is charged into the anode chamber 2A, a cathode liquid is charged into the cathode chamber 3A, and by applying the voltage between the anode 2 and the cathode 3, iron-group metal ions in the liquid in the anode chamber 2A are moved into the liquid in the cathode chamber 3A through the cation exchange membrane 5, so that an iron-group metal is precipitated on the cathode 3.
摘要翻译： 在含铁族金属离子的液体的电沉积处理中，不受铁族金属离子的液体的性质的影响，通过析出有效地除去铁族金属离子。 设置有阳极2和设置有阴极3的阴极室3A的阳极室2A通过阳离子交换膜5彼此分离，将含铁族金属离子的液体装入阳极室2A，阴极 液体被充入阴极室3A中，并且通过在阳极2和阴极3之间施加电压，阳极室2A中的液体中的铁族金属离子通过阳离子交换移动到阴极室3A中的液体中 膜5，使得铁族金属在阴极3上析出。
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公开(公告)号：US20140069810A1
公开(公告)日：2014-03-13
申请号：US13860293
申请日：2013-04-10
IPC分类号： G01N17/02
CPC分类号： G01N17/02
摘要： An electrochemical corrosion potential sensor has a sensor unit, a lead wire and a quasi-reference electrode. A sensor unit includes a tube-shaped insulator, a tube-shaped metal casing joined to an end portion of the insulator, and a Pt electrode joined to another end portion of the insulator. A lead wire connected to the Pt electrode passes through the insulator and the metal casing. The quasi-reference electrode disposed in the metal casing is made of a less noble metal and electrically connected with the lead wire.Since an electrochemical corrosion potential sensor has the quasi-reference electrode, the measurement of the corrosion potential of a structural member of a nuclear power plant and an abnormality occurrence (water intrusion) can be accurately detected during the operation of a nuclear power plant.
摘要翻译： 电化学腐蚀电位传感器具有传感器单元，引线和准参考电极。 传感器单元包括管状绝缘体，连接到绝缘体的端部的管状金属壳体和连接到绝缘体的另一个端部的Pt电极。 连接到Pt电极的引线穿过绝缘体和金属外壳。 设置在金属外壳中的准参考电极由较贵的金属制成，并与导线电连接。 由于电化学腐蚀电位传感器具有准参考电极，所以在核电站运行期间可以准确地检测到核电厂的结构部件的腐蚀电位的测量和异常发生（水侵入）。
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公开(公告)号：US20220213601A1
公开(公告)日：2022-07-07
申请号：US17143288
申请日：2021-01-07
发明人： Ryo HAMADA , Tsuyoshi ITO , Hideyuki HOSOKAWA , Nobuyuki OTA , Mayu SASAKI
摘要： A film-forming apparatus is connected to a carbon steel cleanup system pipe of a BWR plant. Formic acid and hydrogen peroxide are injected into the circulation pipe of the film-forming apparatus. An iron elution accelerator aqueous solution containing 3000 ppm of formic acid and 1500 ppm of hydrogen peroxide is brought into contact with the inner surface of the cleanup system pipe, and Fe2+ is eluted from the cleanup system pipe by formic acid, and hydroxyl radicals generated from hydrogen peroxide. The film-forming aqueous solution produced from the iron elution accelerator aqueous solution by injecting the nickel formate aqueous solution is brought into contact with the inner surface of the cleanup system pipe, and the Ni ions incorporated into the inner surface by the substitution reaction are reduced by the electrons generated at the time of elution of Fe2+ to form a Ni metal film on the inner surface thereof.
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公开(公告)号：US20200248317A1
公开(公告)日：2020-08-06
申请号：US16746126
申请日：2020-01-17
发明人： Tsuyoshi ITOU , Mayu SASAKI , Nobuyuki OTA , Hideyuki HOSOKAWA
摘要： A film forming apparatus is connected to a carbon steel purification system piping of a BWR plant (S1). Formic acid (surface purification agent) is injected into a circulation piping of the film forming apparatus (S4). A surface purification agent aqueous solution containing 30000 ppm of formic acid is contacted with the inner surface of the purification system piping, and a large amount of Fe2+ is dissolved from the purification system piping, and a large amount of electrons are generated by this dissolution. Thereafter, a formic acid Ni aqueous solution is injected into the surface purification agent aqueous solution to produce a film forming aqueous solution (S5). The film forming aqueous solution storing the electrons is contacted with the inner surface of the purification system piping, and Ni ions incorporated into the inner surface are reduced by the electrons, and a Ni metal film is formed on the inner surface. Platinum ions and a reducing agent are injected into the circulation piping (S9, S10), and an aqueous solution containing the platinum ions and the reducing agent is supplied to the purification system piping to deposit platinum on the surface of the Ni metal film.
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公开(公告)号：US20210296019A1
公开(公告)日：2021-09-23
申请号：US17197437
申请日：2021-03-10
发明人： Takashi OOHIRA , Satoshi OOUCHI , Motohiro AIZAWA , Nobuyuki OTA , Hideyuki HOSOKAWA , Ryo HAMADA , Hiroo YOSHIKAWA , Naobumi TSUBOKAWA , Masahiko KAZAMA
摘要： Provided are a chemical decontamination method and a chemical decontamination apparatus capable of preventing deterioration of a metal ion exchange resin and performing decontamination at a low cost in a short time.
The chemical decontamination method of the invention includes: a reduction decontamination step of supplying a reduction decontamination solution to a decontamination target portion and performing reduction decontamination on a surface of a member constituting the decontamination target portion; a hydrogen peroxide decomposition step of decomposing hydrogen peroxide contained in the reduction decontamination solution after the reduction decontamination step; and a metal ion removing step of removing a metal ion contained in the reduction decontamination solution after the hydrogen peroxide decomposition step.-
公开(公告)号：US20170236604A1
公开(公告)日：2017-08-17
申请号：US15583464
申请日：2017-05-01
CPC分类号： G21C15/28 , B01D15/362 , B01J13/0047 , B01J19/082 , B01J23/42 , B01J37/344 , B01J39/04 , B01J39/18 , B01J2219/0877 , B01J2219/12 , C02F1/42 , G21C17/0225
摘要： An aqueous solution of alkali hexahydroxo platinate is produced. As a alkali hexahydroxo platinate, sodium hexahydroxoplatinate or potassium hexahydroxoplatinate is used. The aqueous solution of alkali hexahydroxo platinate is passed through a hydrogen form cation exchange resin layer in a cation exchange resin tower. The aqueous solution of alkali hexahydroxo platinate makes contact with the hydrogen form cation exchange resin of the hydrogen form cation exchange resin layer, thus a suspension of hexahydroxo platinic is generated. If gamma rays are irradiated to the suspension, a platinum oxide colloidal solution in which colloidal particles including a platinum dioxide, a platinum monoxide, and a platinum hydroxide exist is generated. In a platinum oxide colloidal solution, the content of impurities is little and a noble metal compound is dispersed stably in water.
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8.发明申请公开(公告)号：US20140140465A1
公开(公告)日：2014-05-22
申请号：US14084157
申请日：2013-11-19
CPC分类号： G21C15/28 , B01D15/362 , B01J13/0047 , B01J19/082 , B01J23/42 , B01J37/344 , B01J39/04 , B01J39/18 , B01J2219/0877 , B01J2219/12 , C02F1/42 , G21C17/0225
摘要： An aqueous solution of alkali hexahydroxo platinate is produced. As a alkali hexahydroxo platinate, sodium hexahydroxoplatinate or potassium hexahydroxoplatinate is used. The aqueous solution of alkali hexahydroxo platinate is passed through a hydrogen form cation exchange resin layer in a cation exchange resin tower. The aqueous solution of alkali hexahydroxo platinate makes contact with the hydrogen form cation exchange resin of the hydrogen form cation exchange resin layer, thus a suspension of hexahydroxo platinic is generated. If gamma rays are irradiated to the suspension, a platinum oxide colloidal solution in which colloidal particles including a platinum dioxide, a platinum monoxide, and a platinum hydroxide exist is generated. In a platinum oxide colloidal solution, the content of impurities is little and a noble metal compound is dispersed stably in water.
摘要翻译： 制备碱六水合铂溶液的水溶液。 作为碱金属六氢o plat plat inate inate inate inate inate。。。。。。。。。。。。。。。。。 碱性六羟基丙酸钠水溶液通过阳离子交换树脂塔中的氢形阳离子交换树脂层。 碱性六羟基铂的水溶液与氢型阳离子交换树脂层的氢形阳离子交换树脂接触，从而产生六氢o o的悬浮液。 如果对悬浮液照射γ射线，则产生其中存在包含二氧化铂，一氧化铂和氢氧化铂的胶体粒子的氧化铂胶体溶液。 在氧化铂胶体溶液中，杂质含量少，贵金属化合物稳定地分散在水中。
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