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公开(公告)号：US20240240345A1
公开(公告)日：2024-07-18
申请号：US18131359
申请日：2023-04-05
摘要： Disclosed are solutions for the recovery of elemental metals at industrial scales without smelting including, for example, the recovery of near-pure lead from recycled LABs via specialized electrolytic processing. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead oxides), and especially applicable for solid-state electrolysis of mixtures comprising lead paste, electrolyte, and supplemental chemicals. With particular regard to recovering near-pure lead during LAB recycling, solid-state electrolysis of mixtures comprising impure lead (e.g., lead paste) is made possible by electrolytic processing using supplemental chemicals, and made scalable to industrial levels via utilization of a vertically-arranged series of horizontal bipolar cathodes in an electrolyzer assembly.
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公开(公告)号：US20230212771A1
公开(公告)日：2023-07-06
申请号：US17567046
申请日：2021-12-31
发明人： Vipin Tyagi , Amol Harishchandra Naik , Bhaskar Gopal Krishna , Dhurvender Kumar , Nishchay Chadha
摘要： Disclosed herein is an electrolyzer comprising a horizontal cathode located below a suspended anode for purposes of performing electrolysis on metal-bearing mixtures or solutions. The horizontal cathode may comprise the bottom surface of a compartment for containing a mixture or solution of metal components, electrolyte, and/or supplemental chemicals. The horizontal anode may engage the upper surface of the mixture or solution in the compartment. A removal mechanism for facilitating removal of the end-products of the mixture or solution from the compartment (and the surface of the horizontal cathode) through the gate may also be employed. These implementations may be used in recycling of lead acid batteries (LABs) without any need for smelting, and also may be applied to a variety of different electrolytical operations.
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公开(公告)号：US20240093398A1
公开(公告)日：2024-03-21
申请号：US17737869
申请日：2022-05-05
IPC分类号： C25C1/18
CPC分类号： C25C1/18
摘要： Disclosed are solutions for the recovery of elemental metals at industrial scales without smelting including, for example, the recovery of near-pure lead from recycled LABs via specialized electrolytic processing. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead oxides), and especially applicable for solid-state electrolysis of mixtures comprising lead paste, electrolyte, and supplemental chemicals. With particular regard to recovering near-pure lead during LAB recycling, solid-state electrolysis of mixtures comprising impure lead (e.g., lead paste) is made possible by electrolytic processing using supplemental chemicals, and made scalable to industrial levels via utilization of an horizontal cathode in the electrolyzer.
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公开(公告)号：US20230374684A1
公开(公告)日：2023-11-23
申请号：US17886924
申请日：2022-08-12
摘要： Disclosed are solutions for the recovery of elemental metals from dross at industrial scales without smelting including, for example, the recovery of near-pure lead from dross resulting from recycled LABs whether by smelting, electrolytic processing, or some other process. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead monoxide) found in dross, and especially applicable for solid-state electrolysis of mixtures comprising lead dross paste, electrolyte, and supplemental chemicals. Solid-state electrolysis of mixtures comprising impure lead dross (e.g., dross paste) is made possible by electrolytic processing using supplemental chemicals, and made scalable to industrial levels via utilization of a horizontal cathode in the electrolyzer.
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公开(公告)号：US20240309531A1
公开(公告)日：2024-09-19
申请号：US18139270
申请日：2023-04-25
IPC分类号： C25C1/18 , C25B1/16 , C25B1/26 , C25B9/19 , C25B9/63 , C25B13/08 , C25C7/02 , C25C7/04 , H01M10/54
CPC分类号： C25C1/18 , C25B1/16 , C25B1/26 , C25B9/19 , C25B9/63 , C25B13/08 , C25C7/02 , C25C7/04 , H01M10/54 , H01M10/06
摘要： Disclosed are solutions for the recovery of elemental metals at industrial scales without smelting including, for example, the recovery of near-pure lead from recycled LABs via specialized electrolytic processing. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead oxides), and especially applicable for solid-state electrolysis of mixtures comprising lead paste, electrolyte, and supplemental chemicals. With particular regard to recovering near-pure lead during LAB recycling, solid-state electrolysis of mixtures comprising impure lead (e.g., lead paste) is made possible and scalable to industrial levels via utilization of a vertically-arranged series of two-compartment horizontal cathodes or two-compartment horizontal bipolar cathodes in an electrolyzer assembly to simultaneously produce, for example, elemental lead (Pb), sodium hydroxide (NaOH), and chlorine gas (Cl2).
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公开(公告)号：US20240043961A1
公开(公告)日：2024-02-08
申请号：US17975412
申请日：2022-10-27
CPC分类号： C22B13/045 , C22B7/006
摘要： Disclosed are solutions directed to the recovery of both elemental lead and lead alloy (e.g., antimonial lead) from the grid metallics of recycled LABs. The solutions may comprise in part one or more of the following: a rotating drum for rotationally hammering a mixture comprising the lead paste, the lead alloy, and a solution, wherein the rotational hammering is performed in a manner sufficient to cause the lead paste to no longer physically adhere to the lead alloy; a vessel for receiving the mixture from the drum and vibrating the mixture sufficient to cause material movement within the mixture to facilitate separation of the lead alloy from the lead paste and the solution; and/or a press for pressing the lead alloy into a pressed form. The lead paste recovered in this manner may be further processed to yield pure elemental lead, while the recovered lead alloy may be immediately reused in new battery grids and so forth.
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