公开(公告)号：US12065749B2

公开(公告)日：2024-08-20

申请号：US18226626

申请日：2023-07-26

Applicant: ELECTRASTEEL, INC.

Inventor： Ai Quoc Pham ,  Sandeep Nijhawan ,  Adolfredo Alvarez ,  Colleen Wallace ,  Steven Fatur

IPC: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

CPC classification number: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

Abstract: Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.

公开(公告)号：US12054837B2

公开(公告)日：2024-08-06

申请号：US18226604

申请日：2023-07-26

Applicant: ELECTRASTEEL, INC.

Inventor： Ai Quoc Pham ,  Sandeep Nijhawan ,  Adolfredo Alvarez ,  Steven Fatur

IPC: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

CPC classification number: C25C1/06 ,  C22B3/06 ,  C22B5/00 ,  C25C7/02 ,  C25C7/04

Abstract: Methods and systems for dissolving an iron-containing ore are disclosed. For example, a method of processing and dissolving an iron-containing ore comprises: thermally reducing one or more non-magnetite iron oxide materials in the iron-containing ore to form magnetite in the presence of a reductant, thereby forming thermally-reduced ore; and dissolving at least a portion of the thermally-reduced ore using an acid to form an acidic iron-salt solution; wherein the acidic iron-salt solution comprises protons electrochemically generated in an electrochemical cell.

公开(公告)号：US20230392274A1

公开(公告)日：2023-12-07

申请号：US18250205

申请日：2021-06-29

Applicant: ALPHA TECH RESEARCH CORP

Inventor： John N. Harb ,  Michael Stoddard

IPC: C25C7/02 ,  C25C3/34 ,  C25C7/04

CPC classification number: C25C7/025 ,  C25C3/34 ,  C25C7/04

Abstract: Some embodiments include a molten salt system comprising: a molten salt enclosure; a molten salt disposed within the molten salt enclosure; a working electrode disposed at least partially within the molten salt; a counter electrode disposed at least partially within the molten salt; a separator barrier disposed at least partially within the molten salt; a reference salt disposed within the separator barrier; and a reference wire disposed within the reference salt.

公开(公告)号：US11779886B1

公开(公告)日：2023-10-10

申请号：US17948055

申请日：2022-09-19

Applicant: Lyten, Inc.

Inventor： Jesse Baucom ,  Sanjeev Kolli

IPC: C25C1/00 ,  B01D61/46 ,  B01D71/02 ,  B01D69/02 ,  H01G11/56 ,  H01M10/54 ,  C25C1/02 ,  C25C7/04 ,  H01M10/052 ,  H01M10/0562

CPC classification number: B01D61/461 ,  B01D69/02 ,  B01D71/02 ,  B01D71/024 ,  B01D71/0215 ,  C25C1/02 ,  C25C7/04 ,  H01G11/56 ,  H01M10/54 ,  B01D2313/345 ,  B01D2325/38 ,  H01M10/052 ,  H01M10/0562

Abstract: The presently disclosed concepts relate to improved techniques for alkali metal extraction (and in particular lithium), using a solid electrolyte membrane. By using a solid electrolyte embedded in a matrix, alkali metal (such as lithium) can be more effectively separated from feed solutions. Additionally, energy used to initially extract lithium from a feed solution may be stored as electrochemical energy, which in turn, may be discharged when lithium is depleted from the electrode. This discharged energy may therefore be reclaimed and reused to extract additional lithium.

公开(公告)号：US20230167566A1

公开(公告)日：2023-06-01

申请号：US17874442

申请日：2022-07-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： IN KWON KIM ,  Kyu Hyoung Lee ,  Sang Kyun Kim ,  Chul Oh Park ,  Min Young Kim ,  Hyo San Lee

IPC: C25C7/00 ,  C25C5/00 ,  C25C7/04 ,  C25C7/08

CPC classification number: C25C7/002 ,  C25C5/00 ,  C25C7/04 ,  C25C7/08

Abstract: Cerium oxide nanoparticles and methods of fabricating the same are provided. The cerium oxide nanoparticles may be fabricated by a method that may include injecting metal ions into cerium oxide particles and then removing (e.g., desorbing) at least some of the injected metal ions from the cerium oxide particles.

公开(公告)号：US11649170B2

公开(公告)日：2023-05-16

申请号：US16988054

申请日：2020-08-07

Applicant: TERRALITHIUM LLC

Inventor： Stephen Harrison

IPC: C01D15/08 ,  C01D9/04 ,  C01B9/02 ,  C01D7/07 ,  C22B26/12 ,  C25B1/14 ,  C01D15/02 ,  C25C1/02 ,  C25C7/04

CPC classification number: C01D15/08 ,  C01B9/02 ,  C01D7/07 ,  C01D9/04 ,  C01D15/02 ,  C22B26/12 ,  C25B1/14 ,  C25C1/02 ,  C25C7/04 ,  C01P2006/80

Abstract: This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.

公开(公告)号：US20180073156A1

公开(公告)日：2018-03-15

申请号：US15557892

申请日：2015-12-02

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Mitsuyasu OGAWA ,  Tomoyuki AWAZU ,  Masatoshi MAJIMA ,  Masahiro KATO

IPC: C25C1/12 ,  C25C7/06

CPC classification number: C25C1/12 ,  C22B3/06 ,  C22B7/006 ,  C22B15/0063 ,  C25C7/04 ,  C25C7/06 ,  Y02P10/234 ,  Y02P10/236

Abstract: A method for producing copper includes a first step of dissolving copper by adding a copper-containing material to a solution containing an oxidant, and a second step of depositing copper on a surface of a cathode by bringing a solution (A) containing the oxidant in a reduced state into contact with a solution (B) containing copper dissolved therein with a separator provided between the solution (A) and the solution (B), arranging an anode in the solution (A), arranging the cathode in the solution (B), and applying a voltage to both the electrodes, while the oxidant contained in the solution (A) is regenerated, in which the oxidant has a standard electrode potential of 1.6 V or less.

公开(公告)号：US20160032473A1

公开(公告)日：2016-02-04

申请号：US14449783

申请日：2014-08-01

Applicant: Savannah River Nuclear Solutions, LLC

Inventor： Kyle Brinkman ,  Brenda L. Garcia-Diaz ,  Joshua R. Gray

IPC: C25C3/34 ,  C25C7/02 ,  C25C7/04

CPC classification number: C25C3/34 ,  C25C7/02 ,  C25C7/04

Abstract: An electrochemical cell and methods of using the electrochemical cell are described that can be utilized for the recovery of metals from metal oxides. The cell includes a first electrode that includes a solid metal oxide, an electrolyte including an oxygen ion conductor, and a second electrode space apart from the electrolyte by an oxygen ion conducting membrane. Upon reduction of the metal oxide, solid metal is formed that replaces the metal oxide of the electrode and provides for simplified recovery of the metal from the metal oxide. The membrane protects the second electrode from corrosion and degradation from the electrolyte, increasing the life of the cell.

Abstract translation: 描述了可用于从金属氧化物回收金属的电化学电池和使用电化学电池的方法。 电池包括包含固体金属氧化物的第一电极，包含氧离子导体的电解质和通过氧离子导电膜与电解质分开的第二电极空间。 在金属氧化物还原时，形成固体金属，其代替电极的金属氧化物并且简化金属从金属氧化物的回收。 膜保护第二电极免受电解质的腐蚀和降解，增加电池的使用寿命。

公开(公告)号：US20140246306A1

公开(公告)日：2014-09-04

申请号：US14350863

申请日：2012-10-25

Applicant: INDUSTRIE DE NORA S.P.A.

Inventor： Giuseppe Faita

IPC: C25C7/00

CPC classification number: C25C7/00 ,  C25C7/04

Abstract: The present invention concerns an anodic compartment for metal electrowinning cells delimited by a frame-shaped skeleton comprising an envelope including a permeable separator secured to said frame-shaped skeleton by means of a frame-shaped flange, at least one anode obtained starting from a valve metal substrate coated with at least one corrosion-resistant catalytic layer, said anode being inserted inside said envelope, and a demister located above said anode and delimited by said separator and said skeleton. The invention also concerns an electrochemical cell for metal electrowinning comprising at least one such anodic compartment.

Abstract translation: 本发明涉及一种由框架骨架界定的用于金属电解冶金的细胞的阳极室，包括一个外壳，该外壳包括一个通过框形凸缘固定到所述框架骨架上的渗透分离器，至少一个从阀门开始获得的阳极 涂覆有至少一个耐腐蚀催化剂层的金属基材，所述阳极插入所述外壳内，以及位于所述阳极上方并由所述隔板和所述骨架限定的除雾器。 本发明还涉及一种用于金属电解沉积的电化学电池，其包括至少一个这样的阳极室。

公开(公告)号：US20140199577A1

公开(公告)日：2014-07-17

申请号：US14196893

申请日：2014-03-04

Applicant: Ceramatec, Inc.

Inventor： Sai Bhavaraju

IPC: H01M10/052 ,  H01M10/054

CPC classification number: H01M10/052 ,  C25B13/04 ,  C25C7/04 ,  H01M6/185 ,  H01M8/1016 ,  H01M10/054 ,  H01M10/0562

Abstract: The present invention provides an electrochemical cell that includes an anolyte compartment housing an anode electrode; a catholyte compartment housing a cathode electrode; and a solid alkali ion conductive electrolyte membrane separating the anolyte compartment from the cathode compartment. In some cases, the electrolyte membrane is selected from a sodium ion conductive electrolyte membrane and a lithium ion conductive membrane. In some cases, the at least one of anode or the cathode includes an alkali metal intercalation material.

Abstract translation: 本发明提供一种电化学电池，其包括容纳阳极电极的阳极电解液室; 容纳阴极电极的阴极电解液隔室; 以及将阳极电解液室与阴极室分开的固体碱离子导电电解质膜。 在一些情况下，电解质膜选自钠离子传导电解质膜和锂离子传导膜。 在一些情况下，阳极或阴极中的至少一个包括碱金属插层材料。