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公开(公告)号:WO2023081688A1
公开(公告)日:2023-05-11
申请号:PCT/US2022/079122
申请日:2022-11-02
摘要: The present disclosure provides methods of improving the monovalent selectivity of the anion exchange membrane. When operating electrodialysis in a high salinity brine, the high salinity solution enables monovalent selective transport. The monovalent selectivity can significantly retard divalent anion transport, such as SO42-, and is particularly useful during lithium extractions from brines. Such selectivity can be utilized in many operation containing high concentration of salt solution such as sea salt extraction, lithium production, and the production of chloroalkanes.
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2.
公开(公告)号:WO2023046740A1
公开(公告)日:2023-03-30
申请号:PCT/EP2022/076206
申请日:2022-09-21
发明人: WANG, Yao , YAN, Rui , HUANG, Miaoquan , ZHANG, Chengqian , ZHAO, Nan
摘要: The invention relates to an electrochemically assisted ion exchange water treatment device comprising a first inlet feeding water into line Lo a prefiltration unit, an electrochemical cell assembly capable of removing ions from a solution stream, the assembly comprising a first unit comprising at least two electrochemical cells connected in parallel with each other, and a second unit connected in series to the first unit; a second inlet for feeding water into line FL during regeneration state, wherein FL feeds water into the first and second units through lines FL12 and FL3 respectively; wherein line FL12 further branches into two lines to feed water into both cells of the first unit; a wastewater line WL and an outlet for discarding wastewater from the cells; a carbon filtration unit positioned downstream of the assembly; an outlet for dispensing treated water.
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公开(公告)号:WO2022190727A1
公开(公告)日:2022-09-15
申请号:PCT/JP2022/004236
申请日:2022-02-03
申请人: オルガノ株式会社
摘要: 被処理水中の溶存酸素を除去する水処理装置は、陽極11と、陰極12と、陽極11と陰極12との間に配置されてイオン交換体が充填された溶存酸素除去室23を備える。溶存酸素除去室23に充填されているイオン交換体の少なくとも一部は金属触媒が担持されたイオン交換体、例えばパラジウムを担持したアニオン交換樹脂(Pd AER)であり、金属触媒が担持されたイオン交換体は、溶存酸素除去室23の少なくとも一部において単床形態で充填されている。陽極と陰極の間に直流電流が印加しつつ、陰極12が設けられた陰極室25を通過することで水素を含むようになった被処理水を溶存酸素除去室23に供給する。
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公开(公告)号:WO2022190608A1
公开(公告)日:2022-09-15
申请号:PCT/JP2022/000341
申请日:2022-01-07
申请人: オルガノ株式会社
IPC分类号: B01D61/44 , B01D61/48 , C02F9/04 , C02F9/06 , C02F9/12 , C02F1/32 , C02F1/44 , C02F1/469 , C02F1/72
摘要: 被処理水中の有機物を分解除去する水処理装置は、被処理水に過酸化水素を添加する過酸化水素添加手段(過酸化水素源(101))と、過酸化水素を添加された被処理水に対し紫外線を照射する紫外線酸化装置(103)と、紫外線酸化装置(103)からの出口水に含まれる過酸化水素を除去する過酸化水素除去装置(105)と、を有する。過酸化水素除去装置(105)は、陽極(11)及び陰極(12)と、陽極(11)と陰極(12)との間に配置されて、過酸化水素分解能を有する金属触媒が設けられている過酸化水素除去室(23)と、を有し、陽極(11)と陰極(12)の間に直流電流が印加される。
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公开(公告)号:WO2021181723A1
公开(公告)日:2021-09-16
申请号:PCT/JP2020/033205
申请日:2020-09-02
申请人: 栗田工業株式会社
IPC分类号: F22B37/00 , B01D61/00 , B01D61/44 , C02F1/42 , C02F1/44 , C02F1/469 , C02F5/00 , C02F5/10 , C02F5/14 , C23F14/02 , F22B37/56
摘要: 腐食環境やスケールの存在による繰り返しの応力が関連したボイラの蒸発管の腐食疲労を効果的に抑制する。ボイラの蒸発管の腐食疲労を抑制する方法において、該ボイラ水の塩化物イオン濃度及び硫酸イオン濃度をそれぞれ10mg/L以下に管理する、ボイラにおける蒸発管の腐食疲労の抑制方法。ボイラの補給水をイオン交換装置、逆浸透膜装置又は電気脱イオン装置で脱塩処理するか、或いは、ボイラ復水の回収率を上げることにより、ボイラ水の塩化物イオン濃度及び硫酸イオン濃度を管理することが好ましい。
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公开(公告)号:WO2021165337A1
公开(公告)日:2021-08-26
申请号:PCT/EP2021/053915
申请日:2021-02-17
摘要: A process for solution mining of minerals is disclosed. The process comprises injecting an unsaturated stream (150) at an injection pressure into a mineral formation (130) to dissolve the mineral and extracting a high concentration stream (110) containing said dissolved mineral. The process comprising converting latent osmotic energy present in said high concentration stream into an increase in the total pressure of said stream by passage through an osmotic power unit (200) and generating electricity and reducing to the injection pressure the total pressure of a reduced concentration output stream (150) by passage through a power generating device (250) and using the reduced concentration output stream (150) at the injection pressure as the unsaturated stream (150). A process for storing a fuel in an underground formation is also disclosed.
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公开(公告)号:WO2021144042A1
公开(公告)日:2021-07-22
申请号:PCT/EP2020/070441
申请日:2020-07-20
发明人: IN 'T VEEN, Bernardus Cornelis Maria , YASSIN, Samy , KEYZER, Lucas Petrus Simon , CHENG, Yiu Chung , MEURS, Jan Hermen Hendrik , VAN MOURIK, Arian , DERKING, Anke
IPC分类号: C02F1/469 , B01D61/44 , B01D61/58 , C02F1/28 , C02F1/44 , C02F1/52 , B01D2311/06 , B01D2311/2626 , B01D2311/2642 , B01D61/025 , B01D61/445 , C02F1/441 , C02F1/4693 , C02F2103/36 , C02F2303/22
摘要: The invention relates to a process for the treatment of a water stream comprising water, a carbonate salt and/or a hydrogen carbonate salt, and one or more additional salts, comprising the steps of: a) subjecting the water stream to bipolar membrane electrodialysis, resulting in a gas stream comprising carbon dioxide and a treated water stream comprising water and acid equivalents of the one or more additional salts; and b) removing the acid equivalents of the one or more additional salts from at least a portion of the treated water stream resulting from step a).
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8.
公开(公告)号:WO2020264012A1
公开(公告)日:2020-12-30
申请号:PCT/US2020/039405
申请日:2020-06-24
发明人: DEMETER, Ethan
摘要: Provided are electrodialysis systems for removing silica from a desalinated water stream and methods for removing silica from a desalinated water stream. For example, described are bipolar membrane electrodialysis devices for removing silica from water comprising one or more anion exchange membranes; one or more bipolar membranes; and a pair of electrodes comprising a positive electrode and a negative electrode. Also described are electrodialysis systems comprising: one or more electrodialysis devices for the removal of dissolved ions and one or more bipolar membrane electrodialysis devices, wherein a product inlet stream of the one or more bipolar membrane electrodialysis devices comprises the product outlet stream of the one or more electrodialysis devices.
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公开(公告)号:WO2020171009A1
公开(公告)日:2020-08-27
申请号:PCT/JP2020/006013
申请日:2020-02-17
申请人: 株式会社ササクラ
IPC分类号: B01D61/44 , B01D61/46 , C01D15/08 , C22B7/00 , C22B23/00 , C22B26/12 , C22B3/22 , C22B3/44 , C02F1/04 , C02F1/469 , C02F1/58
摘要: リチウム及び無機塩が溶解した被処理液からリチウムを高純度で回収することができるリチウム回収方法を提供する。リチウム回収方法は、リチウム及び無機塩が少なくとも溶解した被処理液を蒸発濃縮する濃縮工程S8と、濃縮工程S8後の被処理液を冷却晶析して無機塩を結晶として析出させる晶析工程S9と、晶析工程S9後の被処理液から無機塩の結晶を含む析出物を分離する固液分離工程S10と、固液分離工程後S10の被処理液に炭酸ガスを混合する及び/又は水溶性の炭酸塩を添加する炭酸化工程S11と、炭酸化工程S11により析出した炭酸リチウムの結晶を含む析出物を被処理液から分離する固液分離工程S12と、を有する。
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公开(公告)号:WO2020068930A1
公开(公告)日:2020-04-02
申请号:PCT/US2019/052887
申请日:2019-09-25
摘要: A monovalent selective ion exchange membrane is disclosed. The membrane includes a polymeric microporous substrate, a cross-linked ion-transferring polymeric layer on a surface of the substrate, and a charged functionalizing layer covalently bound to the ion-transferring layer. A method of producing a monovalent selective cation exchange membrane is also disclosed. The method may include chemically adsorbing a styrene intermediate layer to a cross-linked ion-transferring polymeric layer on a surface of a polymeric microporous substrate, chlorosulfonating the styrene intermediate layer to attach a sulfonyl chloride group layer, aminating the sulfonyl group layer to attach an amine group layer, and functionalizing the amine group layer with a charged compound layer to produce the cation exchange membrane. Water treatment systems including the monovalent selective cation exchange membrane and methods of facilitating water treatment including providing the monovalent selective cation exchange membrane are also disclosed.
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