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公开(公告)号：US11721446B2
公开(公告)日：2023-08-08
申请号：US17132680
申请日：2020-12-23
Applicant: Youngmoon Bae , Seungchul Yang , Dongyong Kwak , Byungkuk Lee , Hyunkwang Cho , Junho Lee
Inventor： Youngmoon Bae , Seungchul Yang , Dongyong Kwak , Byungkuk Lee , Hyunkwang Cho , Junho Lee
CPC classification number: G21C17/002 , G01M3/20 , G01M3/38 , G21C21/00 , C01G43/063
Abstract: Disclosed is a system for sensing a UF6 gas leak in a nuclear fuel manufacturing process. The system is configured to sense whether or not there is a UF6 gas leak by optically detecting UO2F2 in a solid state generated due to a reaction with outside air. This allows prevention of damage to a detection apparatus by means of sensing in a non-contact manner whether or not there is a UF6 gas leak. Further, the system extends the mechanical life of and reduces the maintenance and repair costs for the detection apparatus.
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公开(公告)号：US20220068516A1
公开(公告)日：2022-03-03
申请号：US17524036
申请日：2021-11-11
Applicant: Youngmoon Bae , Hyundong Shin , Seungchul Yang , Bohyun Jo , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwang
Inventor： Youngmoon Bae , Hyundong Shin , Seungchul Yang , Bohyun Jo , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwang
IPC: G21F9/08 , B01D35/02 , G01T1/167 , G21F9/10 , C02F1/58 , C22B60/02 , C02F9/00 , C02F1/04 , C02F1/52 , G21F9/12
Abstract: Disclosed are a method and a device for recovering uranium (U) using a process for chemically treating washing wastewater of a uranium hexafluoride (UF6) cylinder. The method and the device are provided to separate uranium (U) from the wastewater released during a process of washing the uranium hexafluoride (UF6) cylinder and to release a filtrate that satisfies atomic energy licensing standards and environmental regulation standards using evaporation and condensation. Accordingly, an independent technology and process for treating the wastewater released during the process of washing the uranium hexafluoride (UF6) cylinder are ensured, which provides easier maintenance and greatly reduces costs compared to the purchase and operation of apparatuses manufactured by foreign makers.
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3.发明授权公开(公告)号：US10729989B2
公开(公告)日：2020-08-04
申请号：US16257186
申请日：2019-01-25
Applicant: Youngmoon Bae , Seungchul Yang , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho
Inventor： Youngmoon Bae , Seungchul Yang , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho
Abstract: Disclosed is a device for controlling an interface of a liquid-liquid extraction column using pressure equilibrium. The device includes a vertical pipe provided beside an extraction column parallel thereto. The device enables internal pressures of the extraction column and the vertical pipe to be balanced with each other by moving fluid from the extraction column into the vertical pipe. Therefore, the device can maintain the level of an interface between fluids having different specific gravities with a simple control system. The device includes the liquid-liquid extraction column having a column body; and upper and lower tanks having respective inlet pipes and respective outlet pipes, wherein a pipeline is connected to the outlet pipe of the lower tank, and the internal pressures are balanced by controlling a level of the fluid in the pipeline, thereby maintaining the level of the interface.
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公开(公告)号：US20190139663A1
公开(公告)日：2019-05-09
申请号：US16171641
申请日：2018-10-26
Applicant: Youngmoon Bae , Hyundong Shin , Seungchul Yang , Bohyun Jo , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwnag
Inventor： Youngmoon Bae , Hyundong Shin , Seungchul Yang , Bohyun Jo , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwnag
Abstract: Disclosed are a method and a device for recovering uranium (U) using a process for chemically treating washing wastewater of a uranium hexafluoride (UF6) cylinder. The method and the device are provided to separate uranium (U) from the wastewater released during a process of washing the uranium hexafluoride (UF6) cylinder and to release a filtrate that satisfies atomic energy licensing standards and environmental regulation standards using evaporation and condensation. Accordingly, an independent technology and process for treating the wastewater released during the process of washing the uranium hexafluoride (UF6) cylinder are ensured, which provides easier maintenance and greatly reduces costs compared to the purchase and operation of apparatuses manufactured by foreign makers.
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Patent Agency Ranking
公开(公告)号：US20210280328A1
公开(公告)日：2021-09-09
申请号：US17132680
申请日：2020-12-23
Applicant: Youngmoon Bae , Seungchul Yang , Dongyong Kwak , Byungkuk Lee , Hyunkwang Cho , Junho Lee
Inventor： Youngmoon Bae , Seungchul Yang , Dongyong Kwak , Byungkuk Lee , Hyunkwang Cho , Junho Lee
Abstract: A system for sensing a UF6 gas leak in a nuclear fuel manufacturing process is proposed. The system is configured to sense whether or not there is a UF6 gas leak by optically detecting UO2F2 in a solid state generated due to a reaction with outside air, and thus to allow prevention of damage to a detection apparatus by means of sensing in a non-contact manner whether or not there is a UF6 gas leak, and to realize extension of mechanical life and reduction of the maintenance and repair cost for the detection apparatus.
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6.发明申请公开(公告)号：US20190272927A1
公开(公告)日：2019-09-05
申请号：US16419673
申请日：2019-05-22
Applicant: Youngmoon Bae , Seungchul Yang , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwang
Inventor： Youngmoon Bae , Seungchul Yang , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwang
Abstract: A large-particle-size ammonium uranate hydrate crystal and a method of manufacturing the same, in which the reaction rate is controlled by injecting ammonia gas into a uranyl nitrate aqueous solution, thereby increasing the particle size of the ammonium uranate hydrate crystal, and the average particle size of a final ammonium uranate hydrate crystal is 9.32 to 14.68 μm, which is 100 times or more that of a conventional crystal, and uranium content is less than 1 ppm. Since this ammonium uranate hydrate crystal has a very large particle size, handling thereof in subsequent filtration, drying and calcination/reduction processes is very easy, and moreover, the design of devices for subsequent processes is simple, and little uranium is contained in the filtrate of the filtration process, thus obviating an additional chemical treatment process for uranium recovery, which can greatly reduce facility investment costs.
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公开(公告)号：US11289233B2
公开(公告)日：2022-03-29
申请号：US16171641
申请日：2018-10-26
Applicant: Youngmoon Bae , Hyundong Shin , Seungchul Yang , Bohyun Jo , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwang
Inventor： Youngmoon Bae , Hyundong Shin , Seungchul Yang , Bohyun Jo , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho , Sunghoi Gu , Euijun Hwang
IPC: G21F9/08 , B01D35/02 , G01T1/167 , G21F9/10 , C02F1/58 , C22B60/02 , C02F9/00 , C02F1/04 , C02F1/52 , G21F9/12
Abstract: Disclosed are a method and a device for recovering uranium (U) using a process for chemically treating washing wastewater of a uranium hexafluoride (UF6) cylinder. The method and the device are provided to separate uranium (U) from the wastewater released during a process of washing the uranium hexafluoride (UF6) cylinder and to release a filtrate that satisfies atomic energy licensing standards and environmental regulation standards using evaporation and condensation. Accordingly, an independent technology and process for treating the wastewater released during the process of washing the uranium hexafluoride (UF6) cylinder are ensured, which provides easier maintenance and greatly reduces costs compared to the purchase and operation of apparatuses manufactured by foreign makers.
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8.发明申请公开(公告)号：US20200095133A1
公开(公告)日：2020-03-26
申请号：US16695979
申请日：2019-11-26
Applicant: Youngmoon Bae , Yudon Moon , In-Kyu Hwang , Hyundong Shin , Seungchul Yang , Dongyong Kwak , Byungkook Lee , Hyunkwang Cho , Junho Lee
Inventor： Youngmoon Bae , Yudon Moon , In-Kyu Hwang , Hyundong Shin , Seungchul Yang , Dongyong Kwak , Byungkook Lee , Hyunkwang Cho , Junho Lee
IPC: C01G43/025 , C01G43/06 , G21C3/62
Abstract: Embodiments of the disclosure relate to a treatment method and a treatment apparatus for a UF6 heel, using a gas phase reaction. A specific treatment method includes (1) vaporizing the UF6 heel, (2) manufacturing solid phase UO2F2 by using UF6 gas vaporized at step (1), (3) separating the solid phase UO2F2 and by-product gas from each other, and (4) separating hydrogen fluoride from the by-product gas. According to the disclosure, stabilization of a reconversion process and the quality of UO2 powder may be improved by manufacturing the solid phase UO2F2, which is an intermediate of the UO2 powder, through the UF6 heel treatment, and the high cost of radioactive waste disposal is reduced by minimizing the UF6 heel to be less than 0.5 kg.
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9.发明申请公开(公告)号：US20190168133A1
公开(公告)日：2019-06-06
申请号：US16257186
申请日：2019-01-25
Applicant: Youngmoon Bae , Seungchul Yang , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho
Inventor： Youngmoon Bae , Seungchul Yang , Byungkuk Lee , Dongyong Kwak , Hyunkwang Cho
IPC: B01D11/04
Abstract: Disclosed is a device for controlling an interface of a liquid-liquid extraction column using pressure equilibrium. The device includes a vertical pipe provided beside an extraction column parallel thereto. The device enables internal pressures of the extraction column and the vertical pipe to be balanced with each other by moving fluid from the extraction column into the vertical pipe. Therefore, the device can maintain the level of an interface between fluids having different specific gravities with a simple control system. The device includes the liquid-liquid extraction column having a column body; and upper and lower tanks having respective inlet pipes and respective outlet pipes, wherein a pipeline is connected to the outlet pipe of the lower tank, and the internal pressures are balanced by controlling a level of the fluid in the pipeline, thereby maintaining the level of the interface.
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