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1. 发明授权

US11232878B2 Chemical decontamination method 有权
公开(公告)号：US11232878B2
公开(公告)日：2022-01-25
申请号：US16491887
申请日：2018-03-01
申请人： KURITA ENGINEERING CO., LTD. , HITACHI-GE NUCLEAR ENERGY, LTD.
发明人： Masahiko Kazama , Naobumi Tsubokawa , Kazushige Ishida , Satoshi Ouchi , Junji Iwasa
IPC分类号： G21F9/00 , G21F9/12
摘要： A chemical decontamination method includes a dissolution step in which a radioactive insoluble substance containing a metal oxide, the radioactive insoluble substance being adhered to a decontamination object including carbon steel, is dissolved in a decontamination solution and a metal-ion removal step in which the decontamination solution containing the metal ion, the decontamination solution being produced in the dissolution step, is brought into contact with a cation-exchange resin in order to remove the metal ion, the dissolution step including a reductive dissolution step conducted using a decontamination solution containing formic acid, ascorbic acid and/or erythorbic acid, and a corrosion inhibitor.

2. 发明申请

US20200013519A1 CHEMICAL DECONTAMINATION METHOD 审中-公开
公开(公告)号：US20200013519A1
公开(公告)日：2020-01-09
申请号：US16491887
申请日：2018-03-01
申请人： KURITA ENGINEERING CO., LTD. , HITACHI-GE NUCLEAR ENERGY, LTD.
发明人： Masahiko KAZAMA , Naobumi TSUBOKAWA , Kazushige ISHIDA , Satoshi OUCHI , Junji IWASA
IPC分类号： G21F9/00 , G21F9/12
摘要： A chemical decontamination method includes a dissolution step in which a radioactive insoluble substance containing a metal oxide, the radioactive insoluble substance being adhered to a decontamination object including carbon steel, is dissolved in a decontamination solution and a metal-ion removal step in which the decontamination solution containing the metal ion, the decontamination solution being produced in the dissolution step, is brought into contact with a cation-exchange resin in order to remove the metal ion, the dissolution step including a reductive dissolution step conducted using a decontamination solution containing formic acid, ascorbic acid and/or erythorbic acid, and a corrosion inhibitor.

3. 发明专利

TW201837924A 化學除污方法审中-公开
简体标题：化学除污方法
公开(公告)号：TW201837924A
公开(公告)日：2018-10-16
申请号：TW107107903
申请日：2018-03-08
申请人：日商栗田工程股份有限公司 , KURITA ENGINEERING CO., LTD. , 日商日立GE核子能源股份有限公司 , HITACHI-GE NUCLEAR ENERGY, LTD.
发明人：風間正彦 , KAZAMA, MASAHIKO , 坪川尚史 , TSUBOKAWA, NAOBUMI , 石田一成 , ISHIDA, KAZUSHIGE , 大內智 , OUCHI, SATOSHI , 岩佐淳司 , IWASA, JUNJI
IPC分类号： G21F9/12 , G21F9/28
摘要：一種化學除污方法，其係在具有：將附著於包含碳鋼之除污對象物的含有金屬氧化物之放射性不溶物以除污液溶解之溶解步驟；及使藉由該溶解步驟所生成的含金屬離子除污液與陽離子交換樹脂接觸而去除金屬離子之金屬離子去除步驟的化學除污方法中，其特徵為：前述溶解步驟係包含使用含有甲酸、抗壞血酸及/或異抗壞血酸、與腐蝕抑制劑的除污液之還原溶解步驟。
简体摘要：一种化学除污方法，其系在具有：将附着于包含碳钢之除污对象物的含有金属氧化物之放射性不溶物以除污液溶解之溶解步骤；及使借由该溶解步骤所生成的含金属离子除污液与阳离子交换树脂接触而去除金属离子之金属离子去除步骤的化学除污方法中，其特征为：前述溶解步骤系包含使用含有甲酸、抗坏血酸及/或异抗坏血酸、与腐蚀抑制剂的除污液之还原溶解步骤。

4. 发明专利

TWI684998B 化學除污方法有权
简体标题：化学除污方法
公开(公告)号：TWI684998B
公开(公告)日：2020-02-11
申请号：TW107107903
申请日：2018-03-08
申请人：日商栗田工程股份有限公司 , KURITA ENGINEERING CO., LTD. , 日商日立GE核子能源股份有限公司 , HITACHI-GE NUCLEAR ENERGY, LTD.
发明人：風間正彦 , KAZAMA, MASAHIKO , 坪川尚史 , TSUBOKAWA, NAOBUMI , 石田一成 , ISHIDA, KAZUSHIGE , 大內智 , OUCHI, SATOSHI , 岩佐淳司 , IWASA, JUNJI
IPC分类号： G21F9/12 , G21F9/28

5. 发明专利

JP2011168539A Method for removing amino acid-iron complex salt from amine fluid 有权
标题翻译：从氨基液中除去氨基酸复合盐的方法
公开(公告)号：JP2011168539A
公开(公告)日：2011-09-01
申请号：JP2010034031
申请日：2010-02-18
申请人： Kurita Engineering Co Ltd , 栗田エンジニアリング株式会社
发明人： KAWAGUCHI HIROTOMI , OGATA MITSUKEN , YASUTOMI ICHIRO
IPC分类号： C07C213/10 , B01J39/04 , B01J41/04 , B01J47/02 , B01J49/00 , C02F1/42 , C07C215/10
摘要： PROBLEM TO BE SOLVED: To provide a method for removing an amino acid-iron complex salt from an amine fluid which can effectively remove an amino-iron complex salt from the amine fluid including the amino acid-iron complex salt by a simply device and operation, thereby preventing a filler from clogging due to the deposition of an iron carbonate by decomposing the amino acid iron complex salt, and can prevent iron from corroding by a freed amino acid. SOLUTION: In the method comprising bringing an acidic gas into contact with an amine fluid in an absorption column 1, subjecting the formed rich amine fluid to primary regeneration in a primary regeneration column 2, and passing part of the formed lean amine fluid through a cation-exchange column 11 and an anion-exchange column 12 to conduct secondary regeneration, the amine fluid including an amino acid-iron complex salt is passed through a cation-exchange resin layer 13 to remove free cations and furthermore passed through an anion-exchange resin layer 14 to remove the amino acid-iron complex salt and an acid component anion. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种从胺流体中除去氨基酸 - 铁络合物盐的方法，其可以简单地从包含氨基酸 - 铁络合物的胺流体中有效地除去氨基 - 铁络合物盐装置和操作，从而通过分解氨基酸铁络合物盐来防止填料由于碳酸铁的沉积而堵塞，并且可以防止铁被释放的氨基酸腐蚀。解决方案：在包括使酸性气体与吸收塔1中的胺流体接触的方法中，使形成的富胺的流体在初级再生塔2中进行初级再生，并使部分形成的贫胺流体通过阳离子交换柱11和阴离子交换柱12进行二次再生，将包含氨基酸 - 铁络合盐的胺流体通过阳离子交换树脂层13以除去游离阳离子，然后通过阴离子 - 交换树脂层14以除去氨基酸 - 铁络合物盐和酸组分阴离子。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011063535A Regeneration method of amine liquid 有权
标题翻译：氨液再生方法
公开(公告)号：JP2011063535A
公开(公告)日：2011-03-31
申请号：JP2009214674
申请日：2009-09-16
申请人： Kurita Engineering Co Ltd , 栗田エンジニアリング株式会社
发明人： KAWAGUCHI HIROTOMI
IPC分类号： C07C213/10 , B01D53/14 , B01J39/04 , B01J41/04 , B01J49/00 , C07C215/10
摘要： PROBLEM TO BE SOLVED: To efficiently regenerate an amine liquid containing an acid component and modified products such as an amine oxide and the like using an ion exchange resin by a simple apparatus and a simple operation to obtain a regenerated amine liquid containing a small amount of modified product such as an amine oxide and the like.
SOLUTION: A rich amine liquid, obtained by bringing an acidic gas into contact with an amine liquid in an absorption column 11 thereby absorptively removing an acid component, is primarily regenerated in a generation column 12, and the resultant lean amine liquid is circulated to the absorption column 11, while a part of the lean amine liquid is secondarily regenerated by means of a cation exchange resin layer 5a and an anion exchange resin layer 6a and is circulated to the absorption column. In the secondary regeneration step of amines, the lean amine liquid is made to flow through until the amount thereof reaches at most 75-85 vol.% of the amount of the lean amine liquid that can be made to flow through until a first anion exchange resin layer 6a reaches a break-through point where an anion constituting a thermally stable amine salt leaks, and then the effluent liquid from the first anion exchange resin layer 6a is made to flow through to a second anion exchange resin layer 7a, and when the first anion exchange resin layer 6a reaches the break-through point, the first anion exchange layer 6a is regenerated.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：使用离子交换树脂通过简单的装置和简单的操作来有效地再生含有酸成分的胺液和改性产物如氧化胺等，以获得含有少量的改性产物如氧化胺等。解决方案：通过使酸性气体与吸收塔11中的胺液体接触从而吸收除去酸组分而获得的富胺液体主要在生成塔12中再生，所得的贫胺液体为循环到吸收塔11，同时一部分贫胺液体通过阳离子交换树脂层5a和阴离子交换树脂层6a二次再生，并循环到吸收塔。在胺的二次再生步骤中，使贫胺液体流过，直到其达到能够流过的贫胺液体的量的至多75-85体积％，直到第一阴离子交换树脂层6a达到构成热稳定性胺盐的阴离子泄漏的突破点，然后使来自第一阴离子交换树脂层6a的流出液体流过第二阴离子交换树脂层7a，第一阴离子交换树脂层6a到达突破点，再生第一阴离子交换层6a。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2009288045A Method and apparatus for detecting scale adhered state 有权
标题翻译：用于检测连续状态的方法和装置
公开(公告)号：JP2009288045A
公开(公告)日：2009-12-10
申请号：JP2008140485
申请日：2008-05-29
申请人： Kurita Engineering Co Ltd , Nihon Techno-Plus Co Ltd , Tohoku Electric Power Co Inc , 日本テクノプラス株式会社 , 東北電力株式会社 , 栗田エンジニアリング株式会社
发明人： MORIYA TAKEHIKO , OSAWA HITOSHI , KIYOTAKI KAZUHIRO , ASANO TETSUO
IPC分类号： G01N29/12 , G01B17/02 , G01N29/04
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting a scale adhered state, such as the thickness change, release and floating state or the like of the scale adhered to a base material such as the steam piping of a boiler, even in a non-contact state with high precision in a short time, by an electromagnetic ultrasonic resonance method. SOLUTION: An ultrasonic wave 13 is transmitted to an object 1, to which scale is adhered, by an electromagnetic ultrasonic probe 2 to be received from the object and ultrasonic resonance is produced by sweeping frequency to be transmitted to obtain a resonance spectrum. When the resonance spectrum comprising the repetition of a resonance peak group divided into a plurality of individual resonance peaks set to corresponding relation in respective different resonance degrees is obtained as resonance peaks which differ in the degrees of resonance, the part is determined as being a heterogeneous adhesion part. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于检测附着在诸如锅炉的蒸汽管道的基底材料上的氧化皮的厚度变化，释放和浮动状态等的附着垢状态的方法，甚至通过电磁超声共振法在短时间内以高精度处于非接触状态。解决方案：超声波13通过电磁超声波探头2被传送到被附着于其上的物体1，以从物体接收，并且通过扫频以产生超声波共振以获得共振谱。当包含重复共振峰值组的共振谱被分成在各个不同共振度中被设置为对应关系的多个单独谐振峰值时，获得作为共振度不同的谐振峰值，该部分被确定为异质粘合部分。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009229017A Seal plug and steam pipe washing method using the same 有权
标题翻译：密封管和蒸汽管道洗涤方法
公开(公告)号：JP2009229017A
公开(公告)日：2009-10-08
申请号：JP2008076946
申请日：2008-03-25
申请人： Kurita Engineering Co Ltd , 栗田エンジニアリング株式会社
发明人： TSUBOKAWA NAOFUMI , YAMAZAKI KAZUHIRO
IPC分类号： F28G9/00 , B08B9/027
摘要： PROBLEM TO BE SOLVED: To provide a washing method for washing a steam pipe at a low cost without removing a seal ring from a steam stop valve. SOLUTION: The washing method of the steam pipe for washing the inside of the steam pipe with washing fluid, uses a seal plug 20 composed of: an outlet pipe (a first washing pipe) 21 fixed in the steam stop valve 4 by a first fixing means 24; a T pipe 22 including an inlet pipe (a second washing pipe) 22A to form a T shape and fixed in the steam stop valve 4 by a second fixing means 30; and a union joint (a connection means) 23 connecting the T pipe 22 and the outlet pipe 21. The outlet pipe 21 and the inlet pipe 22A of the seal plug 20 fixed in the steam stop valve 4 are connected with the steam pipe and washing piping to form a circulation passage, and the inside of the steam pipe is washed with the washing fluid flowing and circulating in the circulation passage. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种以低成本清洗蒸汽管道的清洗方法，而不用从蒸汽截止阀中移除密封环。解决方案：用洗涤液洗涤蒸汽管内部的蒸汽管的洗涤方法使用密封塞20，该密封塞20由以下部件组成：出口管（第一清洗管）21，其通过在蒸汽截止阀4中固定的出口管第一固定装置24; T管22，其包括形成T形的入口管（第二清洗管）22A，并通过第二固定装置30固定在蒸汽截止阀4中; 以及连接T管22和出口管21的联接接头（连接装置）23。固定在蒸汽截止阀4中的密封塞20的出口管21和入口管22A与蒸汽管连接并进行洗涤管道以形成循环通道，并且蒸汽管的内部用洗涤流体在循环通道中流动和循环来洗涤。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2005305212A Method for regenerating anion exchange resin adsorbed with thiocyanate ion 有权
标题翻译：用于再生含有硫代离子的阴离子交换树脂的方法
公开(公告)号：JP2005305212A
公开(公告)日：2005-11-04
申请号：JP2004122085
申请日：2004-04-16
申请人： Kurita Engineering Co Ltd , 栗田エンジニアリング株式会社
发明人： KOIKE KAZUE , KAWAGUCHI HIROTOMI
IPC分类号： B01J49/00
摘要： PROBLEM TO BE SOLVED: To provide a method capable of regenerating anion exchange resin adsorbed with thiocyanate ion efficiently with a small amount of chemicals. SOLUTION: The anion exchange resin adsorbed with the thiocyanate ions is brought into contact with a potassium chloride aqueous solution, is primarily regenerated, thereafter, is allowed to contact with an alkaline aqueous solution, is secondarily regenerated and is converted into OH form. COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2005224763A Method for regenerating anion-exchange resin adsorbed thiocyanic acid ions 有权
标题翻译：用于再生阴离子交换树脂吸附的硫代酸离子的方法
公开(公告)号：JP2005224763A
公开(公告)日：2005-08-25
申请号：JP2004038359
申请日：2004-02-16
申请人： Kurita Engineering Co Ltd , 栗田エンジニアリング株式会社
发明人： KOIKE KAZUE , KAWAGUCHI HIROTOMI
IPC分类号： B01J49/00
摘要： PROBLEM TO BE SOLVED: To provide a method for regenerating an anion-exchange resin capable of safely and efficiently regenerating the anion-exchange resin adsorbed the thiocyanic acid ions. SOLUTION: The anion-exchange resin having adsorbed the thiocyanic acid ions is brought into contact with the water solution of sodium bicarbonate for a primary regeneration, and then, it is brought into contact with the water solution of sodium hydroxide for a secondary regeneration to convert it into the OH type. COPYRIGHT: (C)2005,JPO&NCIPI

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