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公开(公告)号：US12188140B2
公开(公告)日：2025-01-07
申请号：US18067780
申请日：2022-12-19
Applicant: Li-Metal Corp.
Inventor： Maciej Jastrzebski
Abstract: An electrorefining process for refining relatively purer lithium metal from a lithium-alloy feedstock material using a three-layer electrorefining apparatus can include a) providing an anode layer comprising a molten, lithium-alloy feedstock material that includes a combination of lithium metal having a first purity and a carrier material; b) providing an electrolyte layer comprising a molten salt electrolyte material; c) providing a product layer comprising molten lithium metal having a second purity that is greater than the first purity above the electrolyte layer; and d) applying an activation electric potential that is sufficient to electrolyze the lithium-alloy feedstock material between an anode layer and the product layer that is electrically isolated from the anode layer, whereby lithium metal is liberated from the lithium-alloy feedstock material, migrates through the electrolyte layer and collects in the product layer.
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公开(公告)号：US20240392457A1
公开(公告)日：2024-11-28
申请号：US18673987
申请日：2024-05-24
Applicant: Boston Electrometallurgical Corporation
Inventor： Itamar Dutra Pereira de Resende , Breno Rezende , Rakan Ashour , Guillaume Lambotte
Abstract: Molten oxide electrolysis may be used for extracting one or more metals from a mixture of metal oxides. The mixture of metal oxides may be complex and include at least three metal oxides, each present at 0.5 wt % or greater based on a total weight of the metal oxide electrolyte precursor, to produce a metal oxide electrolyte. In some instances, two or more metals may be extracted in a series of molten oxide electrolysis process where metal oxides having higher Gibbs free energy of formation at 1500° C. are preferentially reduced in each respective molten oxide electrolysis unit before metal oxides having lower Gibbs free energy of formation at 1500° C.
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3.发明公开公开(公告)号：US20240318341A1
公开(公告)日：2024-09-26
申请号：US18431093
申请日：2024-02-02
Applicant: HYDRO-QUÉBEC
Inventor： François LAROUCHE , Kamyab AMOUZEGAR , Gabriel GIRARD , Martin DONTIGNY , Abdelbast GUERFI , Benoit FLEUTOT , Chisu Kim
Abstract: A relithiated Li intercalation material for producing Li metal or an alloy thereof or for pre-lithiating an electrode material as well as an anode and an electrolysis cell comprising same are provided. A method of producing Li metal or an alloy thereof or for pre-lithiating an electrode material is also provided. This method comprises carrying out a Li production electrolysis reaction in the electrolysis cell, wherein the electrolysis cell comprises the relithiated Li intercalation material as an anode, a current collector as a cathode, and an electrolyte comprising a lithium salt.
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公开(公告)号：US20240084468A1
公开(公告)日：2024-03-14
申请号：US18463776
申请日：2023-09-08
Applicant: Phoenix Tailings, Inc.
Inventor： Thomas Anthony Villalon, JR. , Richard Robert Salvucci
Abstract: Systems and methods for feeding solid material and a gas into a container (e.g., electrolytic cell) are generally described. Certain methods comprise feeding solid material and a gas into an electrolytic cell through an inlet; wherein: the gas comprises an inert gas; and the inlet is positioned, relative to an anode of the electrolytic cell, within a distance that is less than or equal to 5 times the shortest cross-sectional dimension of the anode. Certain systems comprise a container configured for molten salt electrolysis; a passageway configured for feeding solid material and a gas into the container; an anode; a cathode; and an outlet configured for releasing a gas from the container; wherein an inlet from the passageway to the container is positioned, relative to the anode, within a distance that is less than or equal to 5 times the shortest cross-sectional dimension of the anode.
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公开(公告)号：US20240003030A1
公开(公告)日：2024-01-04
申请号：US18038358
申请日：2021-11-23
Applicant: ELYSIS LIMITED PARTNERSHIP
Inventor： Leroy D'ASTOLFO , Xinghua LIU , Larry MICKELSON , Allen George MACKEY , John FORS
Abstract: It is disclosed a purifier assembly and method for removing impurities from an electrolytic bath before using the same with an electrolytic cell for making a metal, such as aluminum or aluminium. The assembly comprises a purification tank, located upstream the cell, for containing the bath; and at least one row, preferably at least two rows, of alternating vertically oriented cathodes and anodes configured to be operatively connected to a power supply for providing an electric current to the anodes and cathodes. The rows of vertically oriented cathodes and anodes are configured in size to be inserted into the tank. The purifier assembly is configured to maintain an anode-to-cathode distance (ACD) between the cathodes and anodes. The purifier is particularly adapted for removing sulfur, phosphorus, iron, and/or gallium from cryolite for the eco-friendly production of aluminum with a cell using oxygen-evolving or inert anodes, which preferably requires a purer bath.
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Patent Agency Ranking
公开(公告)号：US11746012B2
公开(公告)日：2023-09-05
申请号：US17150390
申请日：2021-01-15
Applicant: COUGAR CREEK TECHNOLOGIES, LLC
Inventor： Liyu Li
CPC classification number: C01B11/04 , C25B1/22 , C25B9/00 , C25B11/04 , C25B11/042
Abstract: A method for making an aqueous hypochlorous acid (HClO) solution includes electrolyzing a solution of sodium chloride to produce a solution of sodium hypochlorite; and producing the aqueous hypochlorous acid solution by adjusting a pH of the solution of sodium hypochlorite to a value within a range of 3 to 8 by adding a selected weak acid to the solution of sodium hypochlorite to produce a buffer including the selected weak acid and a salt of the selected weak acid.
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公开(公告)号：US20230235477A1
公开(公告)日：2023-07-27
申请号：US18097731
申请日：2023-01-17
Applicant: BATTELLE SAVANNAH RIVER ALLIANCE, LLC
Inventor： BRENDA L. GARCIA-DIAZ , CHRISTOPHER S. DANDENEAU , DALE A. HITCHCOCK
Abstract: Methods and systems for use in targeted removal of metals from a substrate via electrorefining are described. A self-propagating reaction is initiated by use of a thermite to reach high temperatures sufficient to induce localized melting of a salt situated on a metal or alloy substrate. Using a power supply connected to an electrode assembly, an electrorefining reaction capable of generating significant localized corrosion of the substrate is produced.
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8.发明授权公开(公告)号：US11566334B2
公开(公告)日：2023-01-31
申请号：US17077955
申请日：2020-10-22
Applicant: Greene Lyon Group, Inc.
Inventor： Svitlana Moskovchenko , Andre Brosseau
IPC: C25C1/00 , C25C1/20 , C01G5/00 , C22B3/08 , C22B3/06 , C22B11/00 , C25C7/00 , C01G7/00 , C25C7/02
Abstract: The recovery of noble metal(s) from noble-metal-containing material is generally described. The noble metal(s) can be recovered selectively, in some cases, such that noble metal(s) is at least partially separated from non-noble-metal material within the material. Noble metal(s) may be recovered from noble-metal-containing material using mixtures of acids, in some instances. In some cases, the mixture can comprise nitric acid and/or another source of nitrate ions and at least one supplemental acid, such as sulfuric acid, phosphoric acid, and/or a sulfonic acid. The amount of nitrate ions within the mixture can be, in some instances, relatively small compared to the amount of supplemental acid within the mixture. In some cases, the recovery of noble metal(s) using the acid mixtures described herein can be enhanced by transporting an electric current between an electrode and the noble metal(s) of the noble-metal-containing material. In some cases, acid mixtures can be used to recover silver from particular types of scrap materials, such as scrap material comprising silver metal and cadmium oxide and/or scrap material comprising silver metal and tungsten metal.
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公开(公告)号：US20220380920A1
公开(公告)日：2022-12-01
申请号：US17654902
申请日：2022-03-15
Applicant: ZINC8 ENERGY SOLUTIONS INC.
Inventor： Simon Fan , Tristan Sloan , David Robert Bruce , John McLeod
Abstract: A method for generating a metallic particle slurry in a regenerator, the method comprising the steps of: (a) generating metallic particles on a surface of a cathode by applying a forward current for a forward current period; (b) displacing the metallic particles from the surface of the cathode by applying a displacement force for a displacement period; (c) dissolving residual metallic particles by applying a reverse current for a reverse current period; (d) providing a plurality of regenerator cells; and (e) establishing an airlock by isolating aqueous electrolyte between cavities of regenerator cells.
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公开(公告)号：US11498128B2
公开(公告)日：2022-11-15
申请号：US16302419
申请日：2017-05-24
Applicant: METALYSIS LIMITED
Inventor： Dion Vaughan , Melchiorre Conti
IPC: B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y70/00 , B23K26/342 , B23K26/00 , C23C4/18 , C25C7/00 , C25C7/08 , C25C7/06 , B22F10/20 , B22F1/065 , B22F9/20 , B33Y50/02 , C23C4/123 , B22D23/00 , B22F3/115 , C22B34/12 , C25C3/28 , C25C5/04 , B22F1/052 , B23K103/14 , C22C1/04 , B22F10/30
Abstract: A method and an apparatus for manufacturing a metallic article involve providing a non-metallic feedstock, for example in the form of an oxide of a desired metal or a mixture of oxides of the components of a desired metal alloy. A manufacturing apparatus has a reduction apparatus for electrochemically reducing the feedstock to a metallic product and a processor for converting the metallic product to a metallic powder. The powder is fed into an additive-manufacturing apparatus for fabricating the metallic article from the metallic powder. At least the reduction apparatus and the processor, and preferably also the additive-manufacturing apparatus, are collocated, or located in the same container, or in the same building, or on the same site.
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