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    IMPURITY REMOVAL IN AN IRON CONVERSION SYSTEM
    82.
    发明公开
    IMPURITY REMOVAL IN AN IRON CONVERSION SYSTEM 审中-公开

    公开(公告)号：US20240158939A1

    公开(公告)日：2024-05-16

    申请号：US18550189

    申请日：2022-03-24

    Applicant: ELECTRASTEEL, INC.

    Inventor： Ai Quoc PHAM ,  Sandeep NIJHAWAN ,  Adolfredo ALVAREZ ,  Steven FATUR

    IPC: C25C1/06 ,  C25C7/04

    CPC classification number: C25C1/06 ,  C25C7/04

    Abstract: Methods and systems for producing iron from an iron-containing ore and removing impurities found in the iron-containing ore are disclosed. For example, a method for producing iron comprises providing a feedstock having an iron-containing ore and one or more impurities to a dissolution subsystem comprising a first electrochemical cell; producing an iron-rich solution, in the dissolution subsystem; treating the iron-rich solution to remove at least a portion of one or more impurities by raising a pH of the iron-rich solution from an initial pH to an adjusted pH thereby precipitating at least a portion of the one or more impurities in the treated iron-rich solution; delivering the treated iron-rich solution to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing at least a first portion of the transferred formed Fe2+ ions to Fe metal; and removing the Fe metal from the second electrochemical cell thereby producing iron.

    METHOD AND APPARATUS FOR EXTRACTING LITHIUM FROM SOLUTION USING BIPOLAR ELECTRODES
    86.
    发明公开
    METHOD AND APPARATUS FOR EXTRACTING LITHIUM FROM SOLUTION USING BIPOLAR ELECTRODES 审中-公开

    公开(公告)号：US20230212769A1

    公开(公告)日：2023-07-06

    申请号：US18086697

    申请日：2022-12-22

    Applicant: CENTRAL SOUTH UNIVERSITY

    Inventor： Zhongwei ZHAO ,  Lihua HE ,  Xuheng LIU

    IPC: C25C1/02 ,  C25C7/02 ,  C25C7/04

    CPC classification number: C25C1/02 ,  C25C7/02 ,  C25C7/04

    Abstract: An electrochemical method and an apparatus for extracting lithium from a solution using bipolar electrodes are provided. The apparatus adopts electrodes respectively coated with a lithium-rich electroactive material and a lithium-deficient electroactive material as end plates, which are separated by a plurality of bipolar electrodes coated with a lithium-rich electroactive material and a lithium-deficient electroactive material respectively on two sides, where the side of the bipolar electrode facing the end plate of the lithium-rich electroactive material is coated with the lithium-deficient electroactive material, and the side of the bipolar electrode facing the end plate of the lithium-deficient electroactive material is coated with the lithium-rich electroactive material. The apparatus adopts a conventional voltage, requires a small total current and a simple power supply, greatly reduced the amount of busbar required, allows for easy process control, and is suitable for industrial production.

    Li ION RECOVERY MEMBER AND Li RECOVERY DEVICE USING SAME
    87.
    发明公开
    Li ION RECOVERY MEMBER AND Li RECOVERY DEVICE USING SAME 审中-公开

    公开(公告)号：US20230183876A1

    公开(公告)日：2023-06-15

    申请号：US17995663

    申请日：2021-04-09

    Applicant: IDEMITSU KOSAN CO.,LTD.

    Inventor： Futoshi UTSUNO ,  Satoshi KATSUMATA ,  Tsuyoshi HOSHINO

    IPC: C25C7/04 ,  C25C7/02 ,  C25C1/02

    CPC classification number: C25C7/04 ,  C25C7/02 ,  C25C1/02

    Abstract: A Li ion recovery member and a Li recovery device may prevent occurrence of breakage of a permselective membrane and implement stable Li ion recovery for a long period of time even when a size of a Li recovery device is increased. The Li ion recovery member may include: a permselective membrane including a Li ion conductor made of an inorganic substance; electrodes; and a reticular elastic body, in which the electrodes are provided on at least one main surface side of the permselective membrane, at least one electrode of the electrodes is a porous electrode or a membrane electrode, and the porous electrode or the membrane electrode is sandwiched between the reticular elastic body and the permselective membrane. The Li recovery device may include a Li ion recovery electrolytic cell including the Li ion recovery member and configured to recover Li ions by electrodialysis.

    ELECTROWINNING CELL FOR THE PRODUCTION OF LITHIUM AND METHOD OF USING SAME
    88.
    发明公开
    ELECTROWINNING CELL FOR THE PRODUCTION OF LITHIUM AND METHOD OF USING SAME 审中-公开

    公开(公告)号：US20230183875A1

    公开(公告)日：2023-06-15

    申请号：US18002370

    申请日：2022-01-21

    Applicant: Li-Metal Corp.

    Inventor： Maciej Jastrzebski

    IPC: C25C3/02 ,  C25C7/04 ,  C25C7/06

    CPC classification number: C25C3/02 ,  C25C7/04 ,  C25C7/06

    Abstract: A process for electrowinning a metal can include the steps of: a) conveying an anolyte material and a metal chemical feedstock material along an anolyte flow path within an anolyte chamber; b) conveying catholyte material along a catholyte flow path within a catholyte chamber that has a cathode; c) applying an activation electric potential between the anode and a cathode that is sufficient to electrolyze and liberate metal ions from the metal chemical feedstock material in the anolyte chamber, thereby causing a flux of metal ions to migrate through a porous membrane from the anolyte chamber to the catholyte chamber and a metal product to be formed in the catholyte chamber; and while applying the activation electric potential, extracting a feedstock-depleted anolyte material from the anolyte chamber; and extracting an outlet material comprising the catholyte material and the metal product from the catholyte chamber via a catholyte outlet.

    INSERTABLE ELECTRODE DEVICE THAT DOES NOT GENERATE ACID MIST OR OTHER GASES, AND METHOD
    90.
    发明申请
    INSERTABLE ELECTRODE DEVICE THAT DOES NOT GENERATE ACID MIST OR OTHER GASES, AND METHOD 审中-公开
    不产生酸雾或其他气体的绝缘电极装置和方法

    公开(公告)号：US20170058414A1

    公开(公告)日：2017-03-02

    申请号：US15307994

    申请日：2015-04-24

    Applicant: Victor ARAYA BORQUEZ ,  Marco CORTES PANTOJA ,  Jaime Roberto SIMPSON ALVAREZ

    Inventor： Jaime Roberto SIMPSON ALVAREZ

    IPC: C25C7/02 ,  C25C7/04 ,  C25C1/12

    CPC classification number: C25C7/02 ,  C25C1/12 ,  C25C7/04

    Abstract: The invention relates to an insertable electrode device (DEI) for metal electrowinning processes, said device being non-polluting since it does not generate acid mist or other gases. The principle is based on an oxidation half-cell reaction occurring inside the DEI, together with the reduction half-cell that occurs in the metal electrowinning cell using same. The DEI does not generate gases and therefore does not emit acid mist into the environment. The DEI replaces current anodes and permits oxidation reactions to occur below the energy threshold of electrolysis of water, thereby preventing the electro-generation of gaseous oxygen, which is the main cause of acid mist. The DEI comprises a peripheral frame, ion exchange membranes, a strategic electrode that is a strategic semiconductor or conductor (CSE), an inlet duct and outlet duct, a horizontal conductive rod, vertical electrical conducting bars, handles or clamps, a strategic electrolyte, a distributing rod, a discharge rod, and circulation inlet holes and circulation outlet holes.

    Abstract translation: 本发明涉及用于金属电解提取工艺的可插入电极装置（DEI），所述装置是无污染的，因为它不产生酸雾或其它气体。 该原理是基于在DEI内部发生的氧化半电池反应，以及在使用其的金属电解冶金电池中发生的还原半电池。 DEI不产生气体，因此不会在环境中发出酸雾。 DEI取代了目前的阳极，并允许氧化反应发生在水电解能量阈值以下，从而防止产生作为酸雾的主要原因的气态氧气。 DEI包括外围框架，离子交换膜，作为战略半导体或导体（CSE）的策略电极，入口管道和出口管道，水平导电棒，垂直导电杆，手柄或夹具，战略电解质， 分配杆，排放杆，循环入口孔和循环出口孔。

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