公开(公告)号：US20240344221A1

公开(公告)日：2024-10-17

申请号：US18683219

申请日：2022-08-03

申请人： BASF SE

发明人： Si Jun ZHU ,  Jin Bo SONG ,  Jing Cheng XIA

IPC分类号： C25C5/02 ,  C25C1/12 ,  C25C1/20 ,  C25C7/08

CPC分类号： C25C5/02 ,  C25C1/12 ,  C25C1/20 ,  C25C7/08

摘要： The present invention relates to a process for production of a powder of metal in an electrolytic cell comprising an anode made of the metal, a cathode and an electrolyte solution, which comprises a) anodic dissolution to form ions of the metal in the electrolyte solution and cathodic deposition of metal particles from the electrolyte solution, b) removal of the metal particles from the cathode into the electrolyte solution, and c) isolation of the metal particles from the electrolyte solution, wherein the metal is copper or silver, and wherein the electrolyte solution comprises (i) an alkane sulfonic acid or alkanol sulfonic acid and (ii) a soluble metal salt of an alkane sulfonic acid or alkanol sulfonic acid. The present invention also relates to the copper or silver powder obtained or obtainable by the process and use an alkane sulfonic acid or alkanol sulfonic acid in an electrolyte solution for production of a silver or copper powder by electrolytic deposition.

公开(公告)号：US20240336992A1

公开(公告)日：2024-10-10

申请号：US18711909

申请日：2022-11-28

申请人： UMICORE

发明人： Bart KLAASEN ,  Jos DENISSEN

IPC分类号： C22B7/00 ,  C22B3/00 ,  C22B15/00 ,  C22B47/00 ,  C25C1/12 ,  H01M10/54

CPC分类号： C22B7/007 ,  C22B15/0067 ,  C22B15/0069 ,  C22B15/0071 ,  C22B23/0423 ,  C22B47/00 ,  C25C1/12 ,  H01M10/54

摘要： The invention describes a process for the separation of Fe from Cu and one or more of Ni and Co contained in an alloyed powder having more than 1% by weight of Cu, comprising the steps of: —contacting, in oxidizing conditions, the alloyed powder with a stoichiometric amount of an acidic solution selected between a minimum suitable for dissolving 50% of all metallic elements except Fe, and a maximum suitable for dissolving 100% of all metallic elements except 50% of the Fe, thereby obtaining a leach solution containing a major part of the Cu and of the one or more of Ni and Co, and a residue containing a major part of the Fe; and, —separating the leach solution from the residue. Cu, Ni and/or Co from an alloyed powder are dissolved, while the major part of Fe is rejected to a solid residue and separated by solid/liquid separation.

公开(公告)号：US20230257852A1

公开(公告)日：2023-08-17

申请号：US18027088

申请日：2021-09-18

申请人： Jetti Resources, LLC

发明人： Zihe Ren ,  Nelson Mora Huertas ,  David Dixon ,  Edouard Asselin

IPC分类号： C22B15/00 ,  C25C1/12 ,  C22B3/08 ,  C22B3/26

CPC分类号： C22B15/0089 ,  C25C1/12 ,  C22B3/08 ,  C22B3/26 ,  C22B15/0071

摘要： The present disclosure relates to the use of carbonaceous matter and a reagent comprising a thiocarbonyl functional group, for example, in a method for extracting a base metal such as copper from a material comprising the base metal. Such methods can comprise contacting the material under acidic conditions with the carbonaceous matter and the reagent comprising the thiocarbonyl functional group; and optionally recovering the base metal.

公开(公告)号：US20230080921A1

公开(公告)日：2023-03-16

申请号：US17797692

申请日：2021-02-08

申请人： University of Kentucky Research Foundation

发明人： Joshua M Werner

IPC分类号： C22B11/00 ,  C22B7/00 ,  C25C1/12

摘要： A method for recovering metals from waste materials includes steps of contacting a waste material feed stream with a first lixiviant adapted to leach copper and other base metals from the waste material feed stream and provide a treated waste material feed stream, recovering copper metal from the first lixiviant, contacting the treated waste material stream with a second lixiviant adapted to leach noble metals from the treated waste material feed stream and recovering gold from the second lixiviant.

公开(公告)号：US20220307148A1

公开(公告)日：2022-09-29

申请号：US17703137

申请日：2022-03-24

申请人： Pioneer Astronautics

发明人： Steven Fatur ,  Alex Román ,  Diana Aksenova ,  Mark Berggren ,  Robert Zubrin

IPC分类号： C25C1/08 ,  C25C1/12 ,  C25C7/00

摘要： Systems and methods for recovering cobalt and other valuable metals from cobalt permanent magnets of various compositions, such as samarium cobalt magnets, are presented herein. In one embodiment, a method includes converting the permanent magnet material to a higher surface area form, such as a powder. The method also includes treating the converted permanent magnet material with an aqueous solution of ammonium carbonate to form a mixture (e.g., a slurry) that includes dissolved cobalt. In some embodiments, the method includes exposing the mixture to an oxidant to oxidize metallic constituents and form soluble species. The method also includes filtering the mixture to yield a filtrate and electroplating the cobalt onto a cathode from the filtrate.

公开(公告)号：US11408083B2

公开(公告)日：2022-08-09

申请号：US15767912

申请日：2016-10-13

申请人： TRANSDUCTO S.A.

发明人： Gabriel Angel Riveros Urzua ,  Magdalena Cifuentes Cabezas

IPC分类号： C25B9/00 ,  C25B9/73 ,  C25C1/12 ,  C25C7/02 ,  C25C7/04 ,  C25C7/08 ,  C25C7/00 ,  C25C7/06 ,  C25C1/00 ,  C25B9/23 ,  C02F1/461

摘要： A filter press device for electrolytic production of metal for electrodeposition of metal from solutions, constructed from a plurality of cells connected electrically and hydraulically in series. Each has alternating frames and ion-exchange membranes to form alternating anode and cathode compartments, allowing the free path of liquid. Anolyte or catholyte passes through each compartment. The electrolyzed product is discharged from the compartment in the form of metal or a metallic compound. The electrodes are designed with a vertical base plate acting as an anode with the respective anolyte in a cell unit and in the other, acting as a cathode with the respective catholyte in the adjacent cell unit. Completed the production cycle, the device is stopped, the cell is opened, allowing the metal deposition electrodes, cathodes, can be removed and replaced to start a new productive cycle or remain in place with automatic detachment of metal product.

公开(公告)号：US11131034B2

公开(公告)日：2021-09-28

申请号：US16331220

申请日：2016-09-09

申请人： GLENCORE TECHNOLOGY PTY LIMITED

发明人： Nigel Aslin ,  Per Ola Eriksson

IPC分类号： C25C7/02 ,  B23K35/30 ,  C22C9/01 ,  B23K9/173 ,  B23K9/23 ,  B23K35/02 ,  B23K9/032 ,  B23K9/167 ,  C25C1/12 ,  C25C7/06 ,  B23K35/24 ,  B23K101/38 ,  B23K103/22

摘要： A hanger bar for an electrowinning cell, wherein hanger bar includes a bar portion and one or more contact portions adapted, in use, to be brought into contact with an electrical conductor. The contact portions are fabricated from an electrically conductive material, and a welded seal is formed between the bar portion and the contact portions in order to minimize corrosion.

公开(公告)号：US20210189576A1

公开(公告)日：2021-06-24

申请号：US17054622

申请日：2019-05-16

申请人： Yves De Visscher ,  Mark Vandevelde ,  Rafik Jerroudi ,  Bert Coletti ,  Jan Dirk A. Goris ,  Charles Geenen

发明人： Yves De Visscher ,  Mark Vandevelde ,  Rafik Jerroudi ,  Bert Coletti ,  Jan Dirk A. Goris ,  Charles Geenen

IPC分类号： C25C1/12 ,  C25C7/02 ,  C25C7/06

摘要： A process for copper production comprising electrorefining of copper in an electrolytic cell, wherein the voltage difference over the cell is maintained at less than 1.6 volt, the anode comprises at most 98.0% wt of copper and less than 1.00% wt of iron, the current density through the cell is at least 180 A/m2 of cathode surface, electrolyte is removed from the cell during the operation at an average refreshing rate of 30-1900% per hour, by overflow of a first stream of electrolyte over a cell wall, and a gas is introduced into the cell and bubbled through the electrolyte in between anode and cathode. Further disclosed is a liquid molten metal composition suitable for copper anode electrorefining comprising at least 90.10% wt and at most 97% wt of copper, at least 0.1% wt of nickel, at least 0.0001% wt and less than 1.00% wt of iron, and 250-3000 ppm wt of oxygen.

公开(公告)号：US11021801B2

公开(公告)日：2021-06-01

申请号：US16080847

申请日：2016-05-20

申请人： QUANTUM MATRIX SPA

发明人： Guillermo Sebastián Gómez Verdejo

IPC分类号： C25C1/12 ,  B01J19/12 ,  B07C5/344 ,  C22B3/02 ,  C22B3/06 ,  B03C7/06 ,  C25C1/20 ,  C25C7/06

摘要： A method to separate and recover at least one metal from a source of oxidized and/or primary and secondary sulfide ores by determining and modifying the values of the dielectric constant of the minerals source.

公开(公告)号：US10981793B2

公开(公告)日：2021-04-20

申请号：US16098852

申请日：2017-06-29

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： Chong Liu ,  Yi Cui ,  Tong Wu

IPC分类号： C01B32/30 ,  C25C7/02 ,  C25C1/08 ,  C25C1/12 ,  C25C1/16 ,  C25C1/18 ,  C25C1/20 ,  C25C1/22 ,  C22B7/00

摘要： A method for extracting metal ions from water is provided that includes disposing two electrically conductive electrodes in water, where the water includes a target ion species in solution, where at least one of the electrically conductive electrodes is a functionalized electrode having species-specific adsorption of the target ion species, and providing electrical current to the electrically conductive electrodes such that the one or more target ion species are deposited to metallic form or metal oxides at the functionalized electrode by one or more electrochemical reactions.