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1.发明公开公开(公告)号：US20240336508A1
公开(公告)日：2024-10-10
申请号：US18631294
申请日：2024-04-10
发明人： Xudong WANG , Haibing TANG , Bitao XU , Lei WANG , Licheng CHEN , Yongtao LV
IPC分类号： C02F9/00 , B01D61/02 , B01D61/14 , B01D61/42 , B01D61/44 , B01D61/58 , B01D69/02 , B01D71/02 , C02F1/44 , C02F1/467 , C02F1/469 , C02F1/66 , C02F5/02
CPC分类号： C02F9/00 , B01D61/58 , B01D69/02 , B01D71/02 , B01D61/025 , B01D61/147 , B01D61/422 , B01D61/445 , B01D2311/08 , B01D2325/02834 , C02F1/441 , C02F1/444 , C02F1/4672 , C02F1/4695 , C02F1/66 , C02F5/02 , C02F2201/46145
摘要： Disclosed are a method and system for resource treatment of a reverse osmosis concentrated brine (ROC) by bipolar membrane electrodialysis. The method includes: adding a calcium-magnesium precipitant to ROC, and mixing, to remove hardness; filtering a resulting mixture through diatomaceous earth, to intercept an organic matter and a precipitate; adjusting a resulting filtrate to be acidic with a pH adjuster; feeding a resulting acidic filtrate in an electro-Fenton reaction device, and subjecting the resulting acidic filtrate to oxidation under an acidic environment, such that a chemical oxygen demand removal rate is not less than 97%; subjecting a resulting effluent from the electro-Fenton reaction device to fine filtration with a polypropylene microporous filter, to obtain a fine filtrate; and introducing the fine filtrate into a bipolar membrane electrodialysis device, and performing the bipolar membrane electrodialysis, to generate an acid and an alkali under the action of an external electric field.
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公开(公告)号：US12064728B2
公开(公告)日：2024-08-20
申请号：US16962122
申请日：2019-01-08
申请人： COWAY Co., Ltd.
发明人： Sang-Young Lee , Sang-Hyeon Kang , Chul-Ho Kim , Tae-Seong Kwon , Hyoung-Min Moon , Sung-Min Moon , Jun-Young Lee , Byoung-Phil Lee , Byung-Sun Mo , Guk-Won Lee
CPC分类号： B01D61/48 , B01D61/445 , B01D69/02 , C02F1/4695 , B01D2313/345 , B01D2325/42
摘要： An electrodeionization filter includes: a housing having a water inlet and a water outlet; a first electrode installed inside the housing in a spiral shape; a second electrode installed inside the housing in a spiral shape so as to be spaced apart from the first electrode; and an ion exchange module installed between the first electrode and the second electrode for adsorbing or desorbing ionic substances contained in water introduced by an application of electricity. At least one of the first electrode and the second electrode has a structure in which a center portion thereof is denser than a peripheral region thereof. Accordingly, the lifespan of the electrodes of the electrodeionization filter can be increased, and the assembly of the electrodes and related parts can be easily facilitated.
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3.发明授权公开(公告)号：US12042586B2
公开(公告)日：2024-07-23
申请号：US16150992
申请日：2018-10-03
申请人： Zvi Herschman
发明人： Zvi Herschman
CPC分类号： A61M1/1678 , A61F2/022 , A61M1/3417 , B01D61/42 , A61F2230/0069 , A61F2250/0001 , A61F2250/0023 , A61F2250/0024 , A61F2250/0043 , B01D57/02 , B01D61/44 , B01D61/52 , B01D61/54
摘要： Systems and methods utilize semipermeable nanotubes in conjunction with application of controlled electrical potentials across semipermeable nanotube walls allow selective transport of charged impurities (e.g., charged impurities, ions, etc.) from a fluid into these nanotubes. Impurities collected in these nanotubes can then be removed from the fluid, (e.g., blood) as a waste stream. A collection of semipermeable nanotubes each carrying a waste stream can be aggregated and merged into a ureter for excretion thereby providing an artificial kidney system. Sensors that detect/measure various impurities may be included in the system to feed information to a microprocessor to inform on concentrations of impurities, and thereby control electrical potentials applied to the system.
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公开(公告)号：US20240229266A1
公开(公告)日：2024-07-11
申请号：US18391687
申请日：2023-12-21
申请人： NEMASKA LITHIUM INC.
发明人： Jean-François MAGNAN , Guy BOURASSA , Gary PEARSE , Peter SYMONS , J. David GENDERS , Daniel BAR , Marie-Eve LANGEVIN
IPC分类号： C25B15/02 , B01D61/44 , C25B1/00 , C25B1/16 , C25B1/22 , C25B9/19 , C25B9/21 , C25B13/02 , C25B13/04 , C25B15/023 , C25B15/027 , C25B15/029 , C25B15/031
CPC分类号： C25B15/02 , B01D61/44 , B01D61/445 , C25B1/00 , C25B1/16 , C25B1/22 , C25B9/19 , C25B9/21 , C25B13/02 , C25B13/04 , C25B15/023 , C25B15/027 , C25B15/029 , C25B15/031 , Y02E60/36
摘要： There are provided system for preparing lithium hydroxide from an aqueous composition comprising a lithium compound and use of the system thereof to prepare lithium hydroxide, the system comprising an electrochemical cell, a pH probe and at least one inlet for receiving acid or base for maintaining pH. For example, the lithium compound can be lithium sulphate and the aqueous composition can be at least substantially maintained at a pH having a value of about 2 to about 4.
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公开(公告)号：US20240228419A1
公开(公告)日：2024-07-11
申请号：US18554816
申请日：2022-04-21
IPC分类号： C07C51/47 , B01D53/62 , B01D53/78 , B01D53/96 , B01D61/44 , C07C45/41 , C07C51/15 , C25B1/04 , C25B15/08
CPC分类号： C07C51/47 , B01D53/62 , B01D53/78 , B01D53/965 , B01D61/445 , C07C45/41 , C07C51/15 , C25B1/04 , C25B15/081 , B01D2251/604 , B01D2257/504
摘要： The invention concerns a process and modular system for producing formic acid from a source of carbon dioxide. The process according to the invention comprises (a) a carbon capture step wherein a source of carbon dioxide is contacted with an alkaline solution to obtain a solution comprising carbonate and/or bicarbonate; optionally (b) subjecting the solution comprising carbonate and/or bicarbonate to alkaline water electrolysis, wherein carbonate present in the solution comprising carbonate and/or bicarbonate is converted to bicarbonate and H2O is converted into H2 and O2; (c) subjecting the solution comprising carbonate and/or bicarbonate to a hydrogenation step in the presence of a catalyst to obtain a solution comprising formate; and (d) subjecting the solution comprising formate obtained in step (c) to bipolar membrane electrodialysis to obtain a concentrated formic acid solution and a recovered alkaline solution, wherein the recovered alkaline solution obtained in step (d) is recycled back to step (a). The concentrated formic acid solution obtained from step (d) may be subjected to a hydrogenation step in the presence of a hydrogenation catalyst to obtain a concentrated formaldehyde solution.
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公开(公告)号：US20240199830A1
公开(公告)日：2024-06-20
申请号：US18282809
申请日：2022-03-24
IPC分类号： C08J5/22 , B01D61/44 , B01D61/46 , B01D67/00 , B01D69/02 , B01D71/66 , B01J39/05 , B01J39/20 , B01J47/12 , C02F1/469 , C08F279/02 , C08J5/24 , C25B13/08 , H01M8/1023 , H01M8/1069
CPC分类号： C08J5/2243 , B01D61/445 , B01D61/461 , B01D67/0083 , B01D67/009 , B01D69/02 , B01D71/66 , B01J39/05 , B01J39/20 , B01J47/12 , C02F1/4695 , C08F279/02 , C08J5/247 , C25B13/08 , H01M8/1023 , H01M8/1069 , B01D2325/42 , C08J2351/04
摘要： A polymer film obtainable from curing a composition comprising: (a) a curable ionic compound comprising a bis(sulfonyl)imide group; and (b) a curable non-ionic compound comprising at least 4 vinyl groups.
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公开(公告)号：US20240165539A1
公开(公告)日：2024-05-23
申请号：US18430935
申请日：2024-02-02
发明人： Gary W. Sams , Dominic Vincent Perroni , Prasanna Nirgudkar , Florence Binet , Rod William Shampine
IPC分类号： B01D11/04 , B01D15/20 , B01D15/36 , B01D61/02 , B01D61/04 , B01D61/44 , B01D61/58 , C22B3/22 , C22B26/12 , C22C24/00 , C25C1/02
CPC分类号： B01D11/0415 , B01D15/203 , B01D15/361 , B01D61/026 , B01D61/04 , B01D61/44 , B01D61/58 , C22B3/22 , C22B26/12 , C22C24/00 , C25C1/02 , B01D2311/04 , B01D2315/24 , B01D2317/022 , B01D2317/025
摘要： Described herein are methods of recovering lithium from dilute lithium sources. The methods include extracting lithium from an extraction feed using direct lithium extraction in an extraction stage to yield a lithium intermediate, performing one or more concentration operations, each concentration operation concentrating an input stream to yield an output feed, wherein the input stream is obtained from the lithium intermediate and/or the extraction feed is obtained from the output feed. At least one of the concentration operations includes a membrane separation operation having a plurality of reactors in series each having a semi-permeable membrane, such as a counter-flow reverse osmosis operation. Methods may also include generating a low TDS stream as a permeate from any of the one or more concentration operations, wherein the low TDS stream is recycled or used as fresh water.
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公开(公告)号：US20240162469A1
公开(公告)日：2024-05-16
申请号：US18510039
申请日：2023-11-15
申请人： Rahul S. Nana , Rafael A. Feria
发明人： Rahul S. Nana , Rafael A. Feria
IPC分类号： H01M8/22 , B01D5/00 , B01D53/18 , B01D61/00 , B01D61/36 , B01D61/44 , B01D69/02 , C25B1/04 , C25B9/65 , H01M8/04029 , H01M8/06 , H02N11/00
CPC分类号： H01M8/227 , B01D5/006 , B01D53/18 , B01D61/002 , B01D61/364 , B01D61/44 , B01D69/02 , C25B1/04 , C25B9/65 , H01M8/04029 , H01M8/0693 , H02N11/002 , B01D2313/221 , B01D2313/502 , B01D2325/38
摘要： A method and a system of generating electrical power or hydrogen from thermal energy is disclosed. The method includes separating, by a selectively permeable membrane, a first saline solution from a second saline solution, receiving, by the first saline solution and/or the second saline solution, thermal energy from a heat source, and mixing the first saline solution and the second saline solution in a controlled manner, capturing at least some salinity-gradient energy as electrical power as the salinity difference between the first saline solution and the second saline solution decreases. The method further includes transferring, by a heat pump, thermal energy from the first saline solution to the second saline solution, causing the salinity difference between the first saline solution and the second saline solution to increase. The method and system may include a regeneration process, such as membrane distillation, forward osmosis, electrodialysis, salt evaporation and/or salt decomposition.
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公开(公告)号：US11925737B2
公开(公告)日：2024-03-12
申请号：US17350754
申请日：2021-06-17
IPC分类号： A61M1/16 , B01D61/42 , B01D61/44 , B01D61/46 , C02F1/461 , C02F1/467 , C02F1/469 , C02F101/16 , C25B3/23 , C25B9/17
CPC分类号： A61M1/169 , A61M1/1672 , A61M1/1696 , B01D61/42 , B01D61/422 , B01D61/445 , B01D61/46 , C02F1/46104 , C02F1/4672 , C02F1/469 , C02F1/4693 , C25B3/23 , C25B9/17 , C02F2001/46133 , C02F2101/16
摘要： The present disclosure provides devices and methods of using same for cleansing a solution (e.g., a salt or used dialysis solution) of urea via electrooxidation, and more specifically to cleansing a renal therapy solution/dialysis solution of urea via electrooxidation so that the renal therapy solution/dialysis solution can be used or reused for treatment of a patient. In an embodiment, a device for the removal of urea from a fluid having urea to produce a cleansed fluid includes a urea decomposition unit and an electrodialysis unit.
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公开(公告)号：US20240024823A1
公开(公告)日：2024-01-25
申请号：US18343597
申请日：2023-06-28
发明人： Eowyn Lucas , Harry A. Atwater , Chengxiang Xiang
CPC分类号： B01D61/445 , B01D69/02 , B01D61/461 , C02F1/4693 , B01D2325/42 , B01D2325/04 , B01D2313/345 , C02F2101/10
摘要： Systems and methods for catalyzed asymmetric bipolar membranes are described. Catalyzed asymmetric bipolar membranes can sustain desired current densities under low operational voltage for prolonged time periods. Catalyzed asymmetric bipolar membranes can be implemented in electrodialysis cells for various applications such as carbon capture.
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