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    PROCESS FOR PRODUCING AMMONIUM CARBONATE AND SODIUM CARBONATE
    1.
    发明公开
    PROCESS FOR PRODUCING AMMONIUM CARBONATE AND SODIUM CARBONATE 审中-公开

    公开(公告)号：EP4461704A1

    公开(公告)日：2024-11-13

    申请号：EP23172803.1

    申请日：2023-05-11

    申请人： Solvay SA

    发明人： ASENSIO, Salvador ,  DAVOINE, Perrine

    IPC分类号： C01C1/26 ,  C01D7/18 ,  B01D61/44

    摘要： Process for producing (NH 4 ) 2 CO 3 and Na 2 CO 3 in an electrodialyzer cellstack by feeding a base chamber of the electrodialyzer cellstack with an aqueous solution comprising NH 4 Cl, NaCl, dissolved CO 2 and obtaining an outlet solution from the base chamber comprising (NH 4 ) 2 CO 3 and Na 2 CO 3 , and wherein the pH of the outlet solution from the base chamber is at most 9.5.

    GAS DIFFUSION ELECTRODE
    6.
    发明公开
    GAS DIFFUSION ELECTRODE 审中-公开

    公开(公告)号：EP4227439A1

    公开(公告)日：2023-08-16

    申请号：EP23167855.8

    申请日：2019-12-19

    申请人： Mangrove Water Technologies Ltd.

    发明人： DARA, Saad ,  ZAHIRI, Beniamin

    IPC分类号： C25B1/16 ,  B01D61/00 ,  C01D15/00 ,  C01D15/02 ,  C01D15/06 ,  C01D15/08 ,  C25B9/21 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  B01D61/46 ,  C01D15/04 ,  B01D61/44 ,  C02F1/469 ,  C02F1/461

    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.

    SINGLE PIECE-TYPE BIPOLAR FILM ROLL WITH MESH CLOTH SUPPORT AND MANUFACTURING METHOD THEREFOR
    7.
    发明公开
    SINGLE PIECE-TYPE BIPOLAR FILM ROLL WITH MESH CLOTH SUPPORT AND MANUFACTURING METHOD THEREFOR 审中-公开

    公开(公告)号：EP4197624A1

    公开(公告)日：2023-06-21

    申请号：EP21920256.1

    申请日：2021-01-21

    申请人： Quzhou Lanran New Material Co., Ltd.

    发明人： LEI, Yinlin ,  LOU, Yongtong ,  QING, Bo ,  CHEN, Wenlan ,  YIN, Jin

    IPC分类号： B01D61/44 ,  B01D67/00 ,  B01D69/12 ,  B01D69/02 ,  B01D71/26 ,  B01D71/28

    摘要： A single piece-type bipolar film roll with a mesh cloth support and a manufacturing method therefor. The single piece-type bipolar film roll is supported by a high-strength ultra-high molecular weight polyethylene mesh cloth, one side of the single piece-type bipolar film roll is a cation exchange layer containing a benzenesulfonic acid group, the other side of the single piece-type bipolar roll is an anion exchange layer containing a benzyl dimethyl butyl ammonium quaternary amino group, and the middle is a water dissociation catalyst layer containing a benzyl methyl butyl amine tertiary amino group, and the three layers form the single piece-type bipolar film roll. By providing a wider protective film and a narrower spacing film, a dipping and absorbing film roll is polymerized to prepare a composite base film roll which is then subjected to continuous sulfonation to prepare a single-sided sulfonated composite positive film roll, and then the unreacted blank side is sequentially subjected to three-step chemical reactions such as complete chloromethylation, complete tertiary amination and incomplete methylation, so as to prepare a single piece-type bipolar film roll having a compact structure, a clear middle interface, a high mechanical strength and a stable quaternary amino group, and the product qualification rate is high; and the single piece-type bipolar film roll is suitable for a bipolar film electrodialysis engineering application of an organic material-containing system.

    ELECTRODIALYSIS DEVICE
    9.
    发明公开
    ELECTRODIALYSIS DEVICE 审中-公开

    公开(公告)号：EP4082652A1

    公开(公告)日：2022-11-02

    申请号：EP21171513.1

    申请日：2021-04-30

    申请人： MEIKO Maschinenbau GmbH & Co. KG

    发明人： Dürrse, Carsten ,  Gaus, Bruno ,  van Linden, Niels ,  Schepers, Freek

    IPC分类号： B01D61/44 ,  B01D61/46

    摘要： The present invention relates to an electrodialysis device (1110) for simultaneously producing an aqueous stream (B1) comprising an alkali metal hydroxide and an aqueous stream (A1) comprising a Bronsted acid and a process for simultaneously producing an aqueous stream (B1) comprising an alkali metal hydroxide and an aqueous stream (A1) comprising a Bronsted acid wherein the process is carried out in said electrodialysis device (1110).

    INDUSTRIAL SALINITY GRADIENT BATTERY AND ASSOCIATED METHOD
    10.
    发明公开
    INDUSTRIAL SALINITY GRADIENT BATTERY AND ASSOCIATED METHOD 审中-公开

    公开(公告)号：EP3912707A1

    公开(公告)日：2021-11-24

    申请号：EP19910234.4

    申请日：2019-05-09

    申请人： Investigaciones Forestales Bioforest S.A.

    发明人： GONZÁLEZ VOGEL, Álvaro Mauricio

    IPC分类号： B01D61/42 ,  B01D61/44 ,  C02F1/469

    摘要： A system and a method for storing and supplying electrical energy using salinity gradient, based on water desalination systems. The industrial salinity gradient battery or system comprises a set of technologies that act in a coordinated manner, allowing the battery to be charged when there is electrical energy available, or to be discharged when that contained energy needs to be extracted for use. The battery consists of a closed system free from encrusting salts, organic compounds and microorganisms, the system therefore being resistant to fouling and encrustations. The maximum charge storage is achieved with a highly water-soluble salt that is stable in the temperature ranges used and pH neutral. The battery also comprises sealed storage tanks, where water and diluted brine mixture are accumulated. This type of technology is especially useful for damping changes in renewable electrical energy production.