专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10083769B2 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 有权
公开(公告)号：US10083769B2
公开(公告)日：2018-09-25
申请号：US15030781
申请日：2014-10-20
申请人： KURITA WATER INDUSTRIES LTD. , HITACHI-GE NUCLEAR ENERGY, LTD.
发明人： Shingo Miyamoto , Mamoru Iwasaki , Mami Hirose , Motohiro Aizawa , Nobuyuki Ota , Takako Sumiya , Kazushige Ishida
IPC分类号： G21F9/12 , G21F9/30 , C25C1/06 , G21F9/06 , G21F9/00
CPC分类号： G21F9/12 , C25C1/06 , G21F9/00 , G21F9/001 , G21F9/06 , G21F9/30
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.

2. 发明授权

US09299463B2 Method of depositing noble metal on structure member of nuclear plant 有权
标题翻译：在核电站结构件上沉积贵金属的方法
公开(公告)号：US09299463B2
公开(公告)日：2016-03-29
申请号：US13679287
申请日：2012-11-16
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Tsuyoshi Ito , Hideyuki Hosokawa , Makoto Nagase , Yoichi Wada , Kazushige Ishida , Motohiro Aizawa
IPC分类号： G21C19/32 , G21C17/022 , G21D1/00 , G21F9/06 , G21F9/12 , G21F9/30
CPC分类号： G21C19/32 , G21C17/0225 , G21D1/00 , G21F9/06 , G21F9/12 , G21F9/30 , Y02E30/40
摘要： A noble metal injection apparatus is connected to a piping of a nuclear plant at the time of stop of the nuclear plant before start of the nuclear plant. In chemical decontamination, oxidation decontamination agent decomposition, and reduction decontamination on an inner surface of the pipe system are executed. After reduction decontamination, a part of an oxalic acid included in a reduction decontamination solution is decomposed and platinum is injected into the reduction decontamination solution of pH 3.5 or higher. When the platinum concentration becomes a preset concentration, a reduction agent is injected and the reduction decontamination solution including the platinum and reduction agent is brought into contact with the inner surface of the piping. The platinum is deposited on the inner surface of the piping. The injection of the platinum and reduction agent is stopped and the platinum and reduction agent are decomposed.
摘要翻译：贵金属注入装置在核电厂启动之前停止核电站时连接到核电厂的管道。在化学去污中，执行氧化去污剂分解和管道内表面上的还原去污。减压除污后，还原去污溶液中含有的一部分草酸被分解，将铂注入pH 3.5以上的还原去污溶液中。当铂浓度变为预设浓度时，注入还原剂，并且将包含铂和还原剂的还原性去污溶液与管道的内表面接触。铂沉积在管道的内表面上。铂和还原剂的注入停止，铂和还原剂分解。

3. 发明授权

US09230699B2 Method of chemical decontamination for carbon steel member of nuclear power plant 有权
标题翻译：核电厂碳钢构件化学去污方法
公开(公告)号：US09230699B2
公开(公告)日：2016-01-05
申请号：US14450886
申请日：2014-08-04
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Kazushige Ishida , Hideyuki Hosokawa , Motohiro Aizawa
IPC分类号： G21F9/16 , G21F9/00 , G21F9/30
CPC分类号： G21F9/004 , G21F9/30
摘要： A circulation pipe of a chemical decontamination apparatus including a malonic acid injection apparatus and an oxalic acid injection apparatus is connected to a purification system pipe, which is made of carbon steel, of a boiling water nuclear power plant. A malonic acid aqueous solution is injected from the malonic acid injection apparatus into the circulation pipe. An oxalic acid aqueous solution is injected from the oxalic acid injection apparatus into the circulation pipe. A reduction decontaminating solution including a malonic acid of 5200 ppm and an oxalic acid within a range of 50 to 400 ppm is supplied into the purification system pipe through the circulation pipe. Reduction decontamination for an inner surface of the purification system pipe is executed. After the reduction decontamination for the purification system pipe finishes, the malonic acid and oxalic acid included in the solution are decomposed and furthermore, the solution is purified.
摘要翻译：包括丙二酸注射装置和草酸注射装置的化学净化装置的循环管连接到沸水核电站的由碳钢制成的净化系统管。将丙二酸水溶液从丙二酸注射装置注入循环管。将草酸水溶液从草酸注射装置注入循环管中。将包含5200ppm丙二酸和50〜400ppm范围内的草酸的还原去污溶液通过循环管供给到净化系统管中。执行净化系统管的内表面的还原去污。在净化系统管的还原净化完成后，溶液中包含的丙二酸和草酸分解，此外，溶液被纯化。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式