公开(公告)号：US20240325984A1

公开(公告)日：2024-10-03

申请号：US18618274

申请日：2024-03-27

申请人： THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

发明人： Ngai Yin YIP ,  Sanat K. KUMAR ,  Yuxuan HUANG ,  Marshall TEKELL

IPC分类号： B01D67/00 ,  B01D61/46 ,  B01D71/28

CPC分类号： B01D67/00111 ,  B01D61/46 ,  B01D71/281

摘要： Cation exchange membranes are prepared via facile methods to control sulfonation of polystyrene repeat units. An amount of sulfuric acid is reacted with an acetic anhydride to form an amount of acetyl sulfate. The acetyl sulfate is then added to a known concentration of polystyrene units in boiling dichloromethane (DCM) to form sulfonated polystyrene random copolymers, including a random distribution of sulfonated polystyrene repeats and unsulfonated polystyrene repeats, with sulfonation levels between about 0.07 and about 0.225. The sulfonation level can be controlled by adjusting reaction times, reaction temperatures, and sulfuric acid loading in the reaction mediums. These membranes, neutralized via alkali metals, exhibit high charge densities and low hydration degrees, and maintain high permselectivity under various high solution concentrations. The membranes can expand the operating range of ion-exchange membranes (IEMs) and enable numerous additional applications, including high-salinity electrodialysis, improved efficiency of the chloralkali process, water electrolyzers, fuel cells, etc.

公开(公告)号：US20240325976A1

公开(公告)日：2024-10-03

申请号：US18293855

申请日：2022-08-11

申请人： Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

发明人： Roberta Veronezi Figueiredo ,  Amanda Cristina Garcia ,  Dhruva Ajit Marathe ,  Elena Pérez Gallent ,  Juliana Garcia Moretz-Sohn Monteiro ,  Earl Lawrence Vincent Goetheer

IPC分类号： B01D53/96 ,  B01D53/14 ,  B01D53/62 ,  B01D53/78 ,  B01D61/44 ,  B01D61/46 ,  C25D5/00

CPC分类号： B01D53/965 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/62 ,  B01D53/78 ,  B01D61/445 ,  B01D61/463 ,  B01D2252/2023 ,  B01D2252/20405 ,  B01D2252/20421 ,  B01D2252/20484 ,  B01D2257/504 ,  C25D5/003

摘要： The invention is in the field of CO2 capture. In particular the invention relates to a method for capturing CO2 from a CO2-containing feed gas stream, wherein the method comprises at least partially removing dissolved transition metal ions by electrodeposition. The invention further relates to a system for the method.

公开(公告)号：US12105064B2

公开(公告)日：2024-10-01

申请号：US17788762

申请日：2020-04-27

申请人： SHIMADZU CORPORATION

发明人： Hiroshi Tanaka ,  Mikoto Taki

IPC分类号： G01N30/32 ,  B01D15/36 ,  B01D61/46 ,  B01D61/54 ,  G01N30/02

CPC分类号： G01N30/32 ,  B01D15/361 ,  B01D61/46 ,  B01D61/54 ,  G01N2030/027 ,  G01N2030/326 ,  G01N2030/328

摘要： A suppressor device for an ion chromatograph is provided between a separation column and a detector of an ion chromatograph. An electrodialysis suppressor includes a first flow path to which an eluate flowing from the separation column is supplied, a second flow path to which a regeneration liquid is supplied, an ion exchange membrane provided between the first flow path and the second flow path and an electrode to which a voltage is applied. A power supply circuit that applies a voltage to the electrode is turned off in a case in which an eluate is not supplied to the first flow path of the electrodialysis suppressor.

公开(公告)号：US20240269581A1

公开(公告)日：2024-08-15

申请号：US18167979

申请日：2023-02-13

申请人： DIONEX CORPORATION

发明人： Yongjing Chen ,  Yan Liu

IPC分类号： B01D15/42 ,  B01D61/44 ,  B01D61/46

CPC分类号： B01D15/426 ,  B01D61/445 ,  B01D61/46 ,  B01D15/361 ,  B01D2313/13 ,  B01D2313/50 ,  B01D2317/025

摘要： An electrolytic eluent generator system includes a flow-through eluent generating zone, a first reservoir comprising configured to hold a first ion source; a second reservoir configured to hold a second ion source; a first ion exchange connector disposed between the first reservoir and the eluent generating zone, wherein the connector substantially prevents liquid flow through the ion exchange connector and transports ions only of the same charge as said first ions; and a second ion exchange connector disposed between the second reservoir and the eluent generation zone, wherein the connector substantially prevents liquid flow through the ion exchange connector and transports ions only of the same charge as said second ions. The second ion exchange connector is of opposite charge to the first ion exchange connector.

公开(公告)号：US20240252991A1

公开(公告)日：2024-08-01

申请号：US18429019

申请日：2024-01-31

申请人： UCHICAGO ARGONNE, LLC

发明人： Feng Gao ,  Yuepeng Zhang ,  Lei Cheng ,  Shi Li ,  Seth B. Darling ,  Lu Zhang ,  Lily A. Robertson

IPC分类号： B01D69/12 ,  B01D61/46 ,  B01D71/60

CPC分类号： B01D69/125 ,  B01D61/463 ,  B01D71/60

摘要： A membrane for selective separation of a target cation from a source liquid containing the target cation and one or more competing ionic species can include a crown ether polymer layer disposed on a cation exchange membrane. The crown ether polymer layer can include a crown ether capable of selectively binding the target cation and a polymer.

公开(公告)号：US20240238736A1

公开(公告)日：2024-07-18

申请号：US18560058

申请日：2022-05-11

申请人： Summit Nanotech Corporation

发明人： Vijay Daga ,  Eric D. Nyberg ,  Kelly Krahulic ,  Rick Schoephoerster ,  Stephen L. Tondre ,  Norman Wong

IPC分类号： B01D69/14 ,  B01D61/44 ,  B01D61/46 ,  B01D69/02 ,  B01D69/12

CPC分类号： B01D69/147 ,  B01D61/445 ,  B01D61/463 ,  B01D61/464 ,  B01D69/02 ,  B01D69/1216 ,  B01D69/148 ,  B01D2325/42

摘要： The present disclosure relates to a membrane apparatus for selectively retaining and releasing target cations, such as lithium. The membrane apparatus comprises a cation exchange layer and an anion exchange layer that are coupled and configured for hydraulic communication with sufficient permselectivity to facilitate water splitting under an applied voltage. The cation exchange layer comprises a sorbing agent that has a target cation binding coefficient that is less than its hydrogen ion binding coefficient such that it may be efficiently regenerated by in situ produced hydrogen ions. Electrically regenerated ion exchange devices and methods are also described.

公开(公告)号：US12018347B2

公开(公告)日：2024-06-25

申请号：US17602808

申请日：2021-05-12

申请人： ENERGY EXPLORATION TECHNOLOGIES, INC.

发明人： Amit Patwardhan ,  Teague Egan

IPC分类号： C22B3/02 ,  B01D1/00 ,  B01D61/24 ,  B01D61/46 ,  C01D15/04 ,  C01D15/06 ,  C02F1/14 ,  C22B3/00 ,  C22B3/22 ,  C22B3/42 ,  C22B3/44 ,  C22B26/12 ,  C25C1/02 ,  C02F101/10

CPC分类号： C22B26/12 ,  B01D1/0035 ,  B01D61/243 ,  B01D61/46 ,  C01D15/04 ,  C01D15/06 ,  C02F1/14 ,  C22B3/00 ,  C22B3/22 ,  C22B3/42 ,  C22B3/44 ,  C25C1/02 ,  C02F2101/10

摘要： Systems and methods using solar evaporation to preconcentrate lithium containing brines to at or near lithium saturation, followed by a separation processes to separate lithium from impurities. A separated impurity stream is recycled to a point in the evaporation sequence where conditions are favorable for their precipitation and removal or disposed in a separate evaporation pond or reinjected underground, while a lower impurity stream is transferred to one or more of the removal location, to a subsequent pond in the sequence, or to a lithium plant or concentration facility. Further concentration of lithium by evaporation can then take place because impurities are removed thus eliminating lithium losses due to co-precipitation and achieving significantly higher concentrations of lithium.

公开(公告)号：US20240166535A1

公开(公告)日：2024-05-23

申请号：US18283838

申请日：2022-03-24

申请人： Leibniz-Institut für Neue Materialien gemeinnützige GmbH

发明人： Volker Presser ,  Lei Wang ,  Srimuk Pattarachai

IPC分类号： C02F1/461 ,  B01D61/42 ,  B01D61/46 ,  C02F1/469 ,  C02F103/08 ,  C02F103/10

CPC分类号： C02F1/46109 ,  B01D61/428 ,  B01D61/461 ,  C02F1/4691 ,  B01D2313/345 ,  C02F2001/46138 ,  C02F2103/08 ,  C02F2103/10

摘要： An electrode material for extracting an elemental ion from a liquid medium includes at least one electrode material having at least one ion sieve that is capable of retaining or releasing an elemental ion, or a mixture of such ion sieves, wherein the ion sieve or ion sieves is or are coated with carbon.

公开(公告)号：US20240149219A1

公开(公告)日：2024-05-09

申请号：US18557428

申请日：2022-05-13

申请人： HIROSAKI UNIVERSITY

发明人： Kazuya SASAKI ,  Kiyoto SHINMURA

IPC分类号： B01D61/46 ,  C02F1/469 ,  H01M10/54

CPC分类号： B01D61/461 ,  B01D61/468 ,  C02F1/4693 ,  H01M10/54 ,  C02F2103/08

摘要： A lithium recovery device equipped with a processing tank partitioned into a supply tank and a recovery tank by a lithium ion-conducting electrolyte film, and which, in order to selectively move Li+ to an aqueous solution in the recovery tank from an aqueous solution in the supply tank containing Li+ and metal ions Mn+ which are different therefrom, is also equipped with a first power supply connected between porous-structure electrodes provided so as to respectively contact both surfaces of the electrolyte film with the electrode on the supply tank side as the positive electrode, and a second power supply which connects in series to the negative electrode of the first power supply and in which said negative electrode is connected to a sub-electrode provided at a distance from the electrolyte film inside the recovery tank, wherein the second power supply applies a voltage so as to cause a current to flow from the positive electrode to the electrode.

公开(公告)号：US11932955B2

公开(公告)日：2024-03-19

申请号：US17883983

申请日：2022-08-09

申请人： Mangrove Water Technologies LTD.

发明人： Saad Dara ,  Beniamin Zahiri

IPC分类号： C25B9/00 ,  B01D61/46 ,  B01D69/02 ,  C01D15/02 ,  C01D15/04 ,  C01D15/08 ,  C01F5/24 ,  C01F11/18 ,  C02F1/461 ,  C02F1/469 ,  C25B1/16 ,  C25B9/19 ,  C25B9/21 ,  C25B9/23 ,  C25B11/032 ,  C25B11/046 ,  C25B11/048 ,  C25B11/052 ,  C25B11/053 ,  C25B13/00 ,  C25C1/02 ,  C25C7/02 ,  C25C7/04 ,  C02F101/10 ,  C02F103/08 ,  C02F103/10

CPC分类号： C25B9/23 ,  B01D61/46 ,  B01D69/02 ,  C01D15/02 ,  C01D15/04 ,  C01D15/08 ,  C01F5/24 ,  C01F11/181 ,  C02F1/46109 ,  C02F1/4693 ,  C25B1/16 ,  C25B9/19 ,  C25B9/21 ,  C25B11/032 ,  C25B11/046 ,  C25B11/048 ,  C25B11/052 ,  C25B11/053 ,  C25B13/00 ,  C25C1/02 ,  C25C7/02 ,  C25C7/04 ,  B01D2313/345 ,  B01D2325/10 ,  B01D2325/36 ,  B01D2325/38 ,  B01D2325/42 ,  C02F2001/46142 ,  C02F2001/46166 ,  C02F2101/10 ,  C02F2103/08 ,  C02F2103/10

摘要： In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.