公开(公告)号：US10407787B2

公开(公告)日：2019-09-10

申请号：US14828611

申请日：2015-08-18

Applicant: TAT-TECH, INC

Inventor： Jose Thomas ,  David Max Dutton ,  Joseph Wayne Tatman

IPC: B07B15/00 ,  C25C5/02 ,  C25C7/02 ,  C22B21/00

Abstract: Method and apparatus thereof to separate aluminum from aluminum-containing source material, such as fly ash, includes preparing a slurry of the source material and water in an agitation tank and adding a leaching reactant to the slurry in an amount dependent on the amount of aluminum in the source material. After agitation, transferring the mixture to a settling pond. After settling, transferring the liquid as a pregnant solution to an electric cell. Treating the pregnant solution in the electric cell by applying an electrical current that is periodically reversed as the pregnant solution passes between at least two metal plates in the electric cell. Collecting the treated solution in a cone bottom tank and separating aluminum particles from the treated solution using a filter press. Drying the particulate aluminum and pressing the aluminum into solid shapes.

公开(公告)号：US10358731B2

公开(公告)日：2019-07-23

申请号：US15360991

申请日：2016-11-23

Applicant: Seoul National University R&DB Foundation

Inventor： Taekdong Chung ,  Jinyoung Lee

IPC: C25C7/02 ,  C25C1/20 ,  B01J37/34 ,  B01J23/89 ,  B01J23/42 ,  B01J23/44 ,  B01J23/52 ,  B01J23/72 ,  B01J23/75 ,  B01J35/00 ,  C25C7/00

Abstract: This invention relates to a metal catalyst, a manufacturing method of the metal catalyst, and an electrochemical reduction method.The metal catalyst is manufactured by a method comprising providing a conductor to one side of an insulator, providing a fluid including a metal ion and an electron mediator to the other side of the insulator and providing a voltage to the conductor.The electrochemical reduction method comprises providing a conductor to one side of an insulator, providing a fluid including reduction material and an electron mediator to the other side of the insulator and providing a voltage to the conductor.

公开(公告)号：US20190186834A1

公开(公告)日：2019-06-20

申请号：US16272399

申请日：2019-02-11

Applicant: Boston Electrometallurgical Corporation

Inventor： Robert Wyatt Hyers

IPC: F27B3/08 ,  C25C7/02

CPC classification number: F27B3/085 ,  C25C7/02 ,  H01M2/22 ,  H01M2/24 ,  H01M2/26 ,  H01M4/64 ,  H01M4/66 ,  H01M4/661

Abstract: Methods of manufacturing a current collector assembly may include iteratively solving a model on a computer. The model may utilize received inputs including a variable number and arrangement of conductive elements to determine as an output a heat distribution within a hypothetical current collector assembly. The methods may also include identifying as a solution to the model a number and arrangement of conductive elements coupled with a current collector that produces a contained heat distribution within the hypothetical current collector assembly. The methods may also include manufacturing the current collector assembly, and the current collector assembly may include a defined plurality of apertures within a refractory base of the current collector assembly in a pattern configured to receive the number and arrangement of conductive elements identified as the solution to the model.

公开(公告)号：US20190177864A1

公开(公告)日：2019-06-13

申请号：US16273232

申请日：2019-02-12

Applicant: FREEPORT MINERALS CORPORATION

Inventor： Joanna M. Robertson ,  Thomas R. Bolles ,  Wayne W. Hazen ,  Lawrence D. May ,  Jay C. Smith ,  David R. Baughman

IPC: C25C1/12 ,  C22B3/14 ,  C22B15/00 ,  C22B23/00 ,  C22B1/02 ,  C25C1/00 ,  C22B3/02 ,  C25C7/02 ,  C22B3/12 ,  C25C5/02 ,  C22B3/00 ,  C22B1/26 ,  C22B3/22

Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.

公开(公告)号：US10316420B2

公开(公告)日：2019-06-11

申请号：US14957026

申请日：2015-12-02

Applicant: Aqua Metals Inc.

Inventor： Robert Lewis Clarke ,  Samaresh Mohanta

IPC: C25C1/18 ,  C22B3/12 ,  C25C7/08 ,  C22B3/04 ,  C22B3/08 ,  C22B3/16 ,  C22B3/00 ,  C25C7/00 ,  C25C7/02

Abstract: Lead is recycled from lead paste of lead acid batteries in a process that employs alkaline desulfurization followed by formation of plumbite that is then electrolytically converted to pure lead. Remaining insoluble lead dioxide is removed from the lead plumbite solution and reduced to produce lead oxide that can be fed back to the recovery system. Sulfate is recovered as sodium sulfate, while the so produced lead oxide can be added to lead paste for recovery.

公开(公告)号：US10233553B2

公开(公告)日：2019-03-19

申请号：US14992673

申请日：2016-01-11

Applicant: Pultrusion Technique Inc.

Inventor： Robert Dufresne

IPC: C25C7/00 ,  C25D17/00 ,  C25B9/04 ,  C25C7/02

Abstract: A contact bar and related techniques allow enhanced electrolytic refining of metals, e.g. avoiding or reducing electrical short circuits. The contact bar is adapted to rest on an insulating capping board for contacting symmetrical electrodes to provide locations for electrical contact therewith. The contact bar includes a central portion laying on the capping board and branch portions extending laterally outward from the central portion, such that the branch portions fit in between seats of the capping board. The contact bar may include a retention member enabling to reduce lateral movement of the electrodes, and may include a plurality of apertures to engage corresponding holding arms of the capping board. There may be a plurality of adjacent similar contact bar segments.

公开(公告)号：US10227242B2

公开(公告)日：2019-03-12

申请号：US14893353

申请日：2014-06-04

Applicant: INDUSTRIE DE NORA S.P.A

Inventor： Katsumi Hamaguchi ,  Takaaki Nakai ,  Takayuki Yamamoto

IPC: C25B1/10 ,  C25B15/02 ,  C25C7/02 ,  C25D17/10 ,  C25D7/04 ,  C02F1/461 ,  C02F1/467 ,  C25B1/13 ,  C25B1/30 ,  C25B9/08

Abstract: A membrane electrode assembly includes a rod-shaped or tubular anode, an anode terminal connected to the anode, a cathode disposed at a position apart from the anode so as to face the anode, and a membrane that separates the anode from the cathode. The cathode includes a line-shaped or strip-shaped cathode-supporting portion and a cathode claw that extends to the left, right, or both left and right from the cathode-supporting portion and that is curved along an outer periphery of the anode. The cathode-supporting portion and the cathode claw form an anode-holding portion of the cathode. The membrane includes a membrane strip, and the membrane strip is disposed on the cathode claw to be in contact with the cathode claw so that the anode is held by the anode-holding portion of the cathode with the membrane strip therebetween.

公开(公告)号：US10221495B2

公开(公告)日：2019-03-05

申请号：US14781436

申请日：2014-04-03

Applicant: INDUSTRIE DE NORA S.P.A.

Inventor： Alessandro Fiorucci ,  Alice Calderara ,  Luciano Iacopetti ,  Giuseppe Faita

IPC: C25C7/06 ,  C25C1/12 ,  C25C7/02 ,  C25C7/00 ,  C25C7/04

Abstract: The invention relates to a cell for metal electrowinning equipped with a device useful for preventing the adverse effects of dendrite growth on the cathodic deposit. The cell comprises a porous conductive screen, positioned between the anode and the cathode, capable of stopping the growth of dendrites and preventing them from reaching the anode surface.

公开(公告)号：US10214832B2

公开(公告)日：2019-02-26

申请号：US15907934

申请日：2018-02-28

Applicant: E. Jennings Taylor ,  Maria E. Inman ,  Brian T. Skinn ,  Timothy D. Hall ,  Stephen T. Snyder ,  Savidra C. Lucatero ,  Eric Lee Kathe

Inventor： E. Jennings Taylor ,  Maria E. Inman ,  Brian T. Skinn ,  Timothy D. Hall ,  Stephen T. Snyder ,  Savidra C. Lucatero ,  Eric Lee Kathe

IPC: C25C3/00 ,  C25F7/02 ,  C25C1/08 ,  C25C1/12 ,  C25C1/24 ,  C25C7/02 ,  C25C1/06 ,  C25C7/00 ,  C25C7/06

Abstract: A system for recycling machined metal produced by an electrochemical material removal process. The system includes a machining unit and an electrowinning unit. The machining unit includes an anode to receive a workpiece, a cathode tool, and a first pulse generator to provide a voltage or current waveform between the anode and the cathode tool. The electrowinning unit includes an electrowinning cathode, an electrowinning anode, and a second pulse generator to provide a voltage or current waveform between the electrowinning anode and the electrowinning cathode. The machining unit is in fluid communication with the electrowinning unit.

公开(公告)号：US10196749B2

公开(公告)日：2019-02-05

申请号：US14709682

申请日：2015-05-12

Applicant: Johna Leddy

Inventor： Johna Leddy ,  Krysti L. Knoche

IPC: C25B1/00 ,  C25B9/08 ,  C25C1/22 ,  C25C7/02 ,  C25D3/54 ,  H01M4/92 ,  B01J19/08 ,  H01M12/06 ,  H01M12/08 ,  H01M8/1016 ,  H01M8/1018

Abstract: Electrochemically reacting a lanthanide or actinide in solvent at a working electrode; wherein the solvent comprises an organic solvent such as acetonitrile which have a dielectric constant of at least three; wherein the solvent system further comprises an electrolyte; wherein the working electrode comprises an ionically conducting or permeable film such as a fluorosulfonate film; wherein at least one ligand such as triflate distinct from the ionically conducting or permeable film is present; wherein the ligand is chemically similar to a structure in the ionically conducting or ionically permeable film; and optionally wherein the electrochemical oxidation or reduction is carried out under the influence of a magnetic field which favorably enhances the reaction. Improved electrochemical methods, identification, and separation can be achieved. Also, an electrochemical device, wherein the device is adapted to employ the oxygen reduction reaction (ORR) at the cathode, wherein the cathode is magnetically modified, or the electrolyte comprises at least one lanthanide or actinide, or both.