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    Process for production of refined lithium metal
    2.
    发明授权
    Process for production of refined lithium metal 有权

    公开(公告)号：US12180602B2

    公开(公告)日：2024-12-31

    申请号：US17998591

    申请日：2022-01-21

    Applicant: Li-Metal Corp.

    Inventor： Maciej Jastrzebski

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

    Abstract: A process for producing refined lithium metal can include: a) processing a lithium chemical feedstock material using an electrowinning apparatus to produce a crude lithium metal having a first purity; b) combining the crude lithium metal with a carrier material to create a lithium-rich feed alloy; c) introducing the lithium-rich feed alloy as a feedstock material to an electrorefining apparatus and processing the lithium-rich feed alloy using the electrorefining apparatus to separate lithium metal from the carrier material thereby producing i) a refined lithium metal having a second purity that is greater than the first purity and ii) a lithium-depleted alloy that comprises the carrier material and less lithium metal than the lithium-rich feed alloy; and d) extracting the lithium-depleted alloy from the electrorefining apparatus and recycling at least a portion of the lithium-depleted alloy to provide at least a portion of the carrier material used in step b).

    HIGH-EFFICIENCY ELECTROLYSIS OF IRON ORE FOR IRON PRODUCTION
    3.
    发明申请
    HIGH-EFFICIENCY ELECTROLYSIS OF IRON ORE FOR IRON PRODUCTION 有权

    公开(公告)号：US20240376621A1

    公开(公告)日：2024-11-14

    申请号：US18315999

    申请日：2023-05-11

    Applicant: University of Utah Research Foundation

    Inventor： Tao Gao ,  Jing Liu

    IPC: C25C1/06 ,  C25C7/02 ,  C25C7/04

    Abstract: A method of producing iron metal by electrolysis of iron ore can include introducing iron ore into an anode chamber. The anode chamber can include a first electrolyte and an anode. The anode can oxidize water to form O2 gas and H+ ions in the anode chamber. The iron ore can be dissolved to form Fe3+ and/or Fe2+ ions in the anode chamber. The Fe3+ and/or Fe2+ ions can be transferred from the anode chamber to a cathode chamber through a cation exchange membrane that separates the anode chamber from the cathode chamber. The cathode chamber can include a second electrolyte and a cathode. The Fe3+ and/or Fe2+ ions can be reduced to form iron metal at the cathode.

    ORE DISSOLUTION AND IRON CONVERSION SYSTEM
    4.
    发明申请
    ORE DISSOLUTION AND IRON CONVERSION SYSTEM 有权

    公开(公告)号：US20240368788A1

    公开(公告)日：2024-11-07

    申请号：US18758256

    申请日：2024-06-28

    Applicant: ELECTRASTEEL, INC.

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

    IPC: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

    Abstract: Methods and systems for dissolving an iron-containing ore are disclosed. For example, a method of processing and dissolving an iron-containing ore comprises: thermally reducing one or more non-magnetite iron oxide materials in the iron-containing ore to form magnetite in the presence of a reductant, thereby forming thermally-reduced ore; and dissolving at least a portion of the thermally-reduced ore using an acid to form an acidic iron-salt solution; wherein the acidic iron-salt solution comprises protons electrochemically generated in an electrochemical cell.

    2-step iron conversion system
    5.
    发明授权
    2-step iron conversion system 有权

    公开(公告)号：US12065749B2

    公开(公告)日：2024-08-20

    申请号：US18226626

    申请日：2023-07-26

    Applicant: ELECTRASTEEL, INC.

    Inventor： Ai Quoc Pham ,  Sandeep Nijhawan ,  Adolfredo Alvarez ,  Colleen Wallace ,  Steven Fatur

    IPC: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

    CPC classification number: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

    Abstract: Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.

    Reference Electrode for Molten Salts
    7.
    发明公开
    Reference Electrode for Molten Salts 审中-公开

    公开(公告)号：US20230392274A1

    公开(公告)日：2023-12-07

    申请号：US18250205

    申请日：2021-06-29

    Applicant: ALPHA TECH RESEARCH CORP

    Inventor： John N. Harb ,  Michael Stoddard

    IPC: C25C7/02 ,  C25C3/34 ,  C25C7/04

    CPC classification number: C25C7/025 ,  C25C3/34 ,  C25C7/04

    Abstract: Some embodiments include a molten salt system comprising: a molten salt enclosure; a molten salt disposed within the molten salt enclosure; a working electrode disposed at least partially within the molten salt; a counter electrode disposed at least partially within the molten salt; a separator barrier disposed at least partially within the molten salt; a reference salt disposed within the separator barrier; and a reference wire disposed within the reference salt.

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