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公开(公告)号：US12173420B2
公开(公告)日：2024-12-24
申请号：US18002370
申请日：2022-01-21
Applicant: Li-Metal Corp.
Inventor： Maciej Jastrzebski
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.
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公开(公告)号：US20240287695A1
公开(公告)日：2024-08-29
申请号：US18657047
申请日：2024-05-07
Applicant: ALCOA USA CORP.
Inventor： Benjamin D. Mosser , Xinghua Liu
Abstract: The application is directed to products and methods related to an aluminum purification cell with a non-carbonaceous substrate with a directing feature. The directing feature can be configured to direct a wettable material in a predetermined direction. The non-carbonaceous substrate can be at least partially covered with solid aluminum metal. The wettable material can be aluminum metal.
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公开(公告)号：US11697594B2
公开(公告)日：2023-07-11
申请号：US17764561
申请日：2021-01-16
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Yanqing Lai , Zhongliang Tian , Kai Yang , Yifan Li , Peiyu Gong , Bo Hong , Jie Li
IPC: C01B32/205 , C25C3/08 , B09B3/70 , B09B3/40 , B09B101/15
CPC classification number: C01B32/205 , B09B3/40 , B09B3/70 , C25C3/08 , B09B2101/15
Abstract: A method for recycling spent carbon cathode of aluminum electrolysis includes the following steps: (1) crushing and sieving spent carbon cathode, to obtain carbon particles; (2) mixing the carbon particles with a sulfuric acid solution, to obtain a slurry A, and then performing pressure leaching, to obtain a slurry B; (3) evaporating and concentrating the slurry B until a mass percentage of water is lower than 8%, to obtain a slurry C; (4) adding concentrated sulfuric acid to the slurry C to obtain a slurry D, then roasting the slurry D at 150-300° C. for 0.5-10 h, and then roasting at 300-600° C. for 0.5-8 h, to obtain the roasted carbon; and calcining the roasted carbon at a high temperature, to obtain the purified carbon, or mixing the roasted carbon with a leaching agent, and performing leaching, filtering, and washing, to obtain the purified carbon.
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公开(公告)号：US11618960B2
公开(公告)日：2023-04-04
申请号：US17046624
申请日：2019-02-14
Applicant: TOKAI COBEX SAVOIE , Metsol AG
Inventor： Juric Drago Dragutin , Loig Rivoaland
Abstract: A cathode assembly for an electrolytic cell including a cathode block having a second surface and a first surface. The cathode block also including at least one sealing groove opening onto its first surface and a plurality of electrical contact plugs mounted in electrical contact with the first surface of the cathode block. The cathode assembly includes at least one current supply plate in electrical contact with at least one electrical contact plug, and is connected to at least one unit for connection to an electric current source. The cathode assembly includes at least one current supply bar having a coefficient of thermal expansion substantially identical to the coefficient of thermal expansion of the current supply plate and is sealed within the at least one sealing groove while being fastened to at least one current supply plate.
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公开(公告)号：US11585003B2
公开(公告)日：2023-02-21
申请号：US17372248
申请日：2021-07-09
Applicant: ELYSIS LIMITED PARTNERSHIP
Inventor： Xinghua Liu
Abstract: An electrolytic cell for producing aluminum metal is disclosed. The electrolytic cell comprises at least one anode module having a plurality of anodes and being supported above a corresponding at least one cathode module having a plurality of cathodes, the at least one anode module being supported by a positioning apparatus configured to move inside the cell for selectively positioning the plurality of anodes within the electrolytic cell relative to adjacent cathodes in order to adjust an anode-cathode distance (ACD) and/or an anode-cathode overlap (ACO). Preferably, the anodes are inert or oxygen-evolving electrodes for an eco-friendly or “green” production of a metal, such as aluminum (or aluminium).
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Patent Agency Ranking
公开(公告)号：US20230021762A1
公开(公告)日：2023-01-26
申请号：US17961021
申请日：2022-10-06
Applicant: Ghislain Gonthier
Inventor： Claude Allaire
Abstract: The present document describes an electrolytic cell comprising a protective layer comprising elemental copper covering at least in part or all of a refractory material assembly covering an interior surface thereof. Also described is a copper oxide containing composition comprising copper oxide and any one of a reducing agent and a binder. Also described is a method of protecting a refractory material assembly covering an interior surface of an electrolytic cell, comprising covering at least in part, or all of the refractory material assembly with a copper sheet, a structure comprising elemental copper, a copper oxide, an elemental copper comprising composite material, a copper oxide containing composition and combinations thereof, to provide a protective layer comprising elemental copper.
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公开(公告)号：US11519090B2
公开(公告)日：2022-12-06
申请号：US16438324
申请日：2019-06-11
Applicant: UACJ Corporation
Inventor： Yukio Honkawa , Junji Nunomura , Yoichi Kojima
Abstract: The method for producing an electrolytic aluminum foil of the present disclosure is a method for producing an electrolytic aluminum foil, the method including supplying an electrolytic solution in an electrolytic cell provided with a diaphragm between an anode and a cathode and depositing an aluminum foil on a surface of the cathode by electrolysis, wherein the diaphragm is made of aluminum having a purity of 85.0% or more and has a plurality of pores having an average pore diameter of 100 to 1000 μm.
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8.发明授权公开(公告)号：US11466377B2
公开(公告)日：2022-10-11
申请号：US17264368
申请日：2019-09-03
Applicant: NORSK HYDRO ASA
Inventor： Eirik Hagen , Espen Tjønneland Wefring , Christian Schøning
Abstract: The present invention relates to a method and a material for establishing a cathode barrier layer in electrolysis cells for production of aluminum of Hall-Heroult type, the barrier layer can comprise minerals combined with a compound that lowers the melting temperature of the minerals, such as fluorides.
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公开(公告)号：US11339489B2
公开(公告)日：2022-05-24
申请号：US16307586
申请日：2017-06-14
Applicant: Tokai COBEX GmbH
Inventor： Markus Pfeffer , Florian Pfefferer
Abstract: Disclosed is a cathode block having a slot geometry, said carbon-based cathode block for an electrolysis cell for the production of aluminium being provided with at least one slot for accommodating at least one cathode bar, said at least one slot having at least one cavity, at least some sections of which extend in the longitudinal direction of the slot and which includes at least one undercut.
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公开(公告)号：US11203814B2
公开(公告)日：2021-12-21
申请号：US15474934
申请日：2017-03-30
Applicant: Alcoa USA Corp.
Inventor： Benjamin D. Mosser , Lance M. Sworts
Abstract: In one embodiment, the disclosed subject matter relates to an electrolytic cell that has: a cell reservoir; a cathode support retained on a bottom of the cell reservoir, wherein the cathode support contacts at least one of: a metal pad and a molten electrolyte bath within the cell reservoir, wherein the cathode support includes: a body having a support bottom, which is configured to be in communication with the bottom of the electrolysis cell; and a support top, opposite the support bottom, having a cathode attachment area configured to retain a at least one cathode plate therein.
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