公开(公告)号：US20230366115A1

公开(公告)日：2023-11-16

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 ,  C25C7/02 ,  C22B3/06 ,  C25C7/04 ,  C22B5/00

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

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：US20230349055A1

公开(公告)日：2023-11-02

申请号：US18220021

申请日：2023-07-10

Applicant: Mangrove Water Technologies LTD.

Inventor： Saad Dara ,  Beniamin Zahiri

IPC: C25B9/23 ,  C01D15/08 ,  C25B11/052 ,  C01D15/02 ,  C25C7/04 ,  C25C7/02 ,  C01D15/04 ,  C25B11/053 ,  C25B1/16 ,  C01F11/18 ,  C25B9/21 ,  C25B11/046 ,  B01D61/46 ,  C25B9/19 ,  C25B11/032 ,  B01D69/02 ,  C25C1/02 ,  C01F5/24 ,  C02F1/461 ,  C25B11/048 ,  C25B13/00 ,  C02F1/469

CPC classification number: C25B9/23 ,  C01D15/08 ,  C25B11/052 ,  C01D15/02 ,  C25C7/04 ,  C25C7/02 ,  C01D15/04 ,  C25B11/053 ,  C25B1/16 ,  C01F11/181 ,  C25B9/21 ,  C25B11/046 ,  B01D61/46 ,  C25B9/19 ,  C25B11/032 ,  B01D69/02 ,  C25C1/02 ,  C01F5/24 ,  C02F1/46109 ,  C25B11/048 ,  C25B13/00 ,  C02F1/4693 ,  B01D2325/42 ,  C02F2103/10

Abstract: In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.

公开(公告)号：US20230322583A1

公开(公告)日：2023-10-12

申请号：US18193318

申请日：2023-03-30

Applicant: Chongqing University of Arts and Sciences

Inventor： Wei GUAN ,  Wen ZENG ,  Zhongwen OU ,  Dan SONG ,  Subo YANG ,  Yong ZHANG ,  Bitao LIU ,  Zhigang XIE

IPC: C02F1/26 ,  C02F1/66 ,  C25C7/02 ,  C02F1/461 ,  C25C1/08 ,  C02F103/16 ,  C02F101/20

CPC classification number: C02F1/26 ,  C02F1/66 ,  C25C7/02 ,  C02F1/46109 ,  C25C1/08 ,  C02F2209/06 ,  C02F2201/46145 ,  C02F2001/46133 ,  C02F2201/005 ,  C02F2103/16 ,  C02F2201/4614 ,  C02F2101/20 ,  C02F2201/46135 ,  C02F2201/4615

Abstract: Disclosed is a device for efficiently recycling nickel from wastewater and a method. The device includes a housing, and an extraction unit and an electro-deposition unit which are respectively arranged inside the housing. The device is reasonable in overall structural design. An oscillating and floating component and a rotating component in an extraction cavity are used to fully and uniformly mix a solution to maximize the extraction strength. A mixing component in an electro-deposition cavity is used to accelerate ion dispersion, to better recycle nickel. The device is easy to operate, low in cost and suitable for mass promotion.

公开(公告)号：US11767604B2

公开(公告)日：2023-09-26

申请号：US17884260

申请日：2022-08-09

Applicant: ELECTRASTEEL, INC.

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

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

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：US20230279568A1

公开(公告)日：2023-09-07

申请号：US18005795

申请日：2021-05-26

Applicant: DE NORA PERMELEC LTD

Inventor： Takashi FURUSAWA ,  Eri MIYAKAWA

IPC: C25B11/093 ,  C25B1/02 ,  C25B11/052 ,  C25C7/02 ,  C25B11/063

CPC classification number: C25B11/093 ,  C25B1/02 ,  C25B11/052 ,  C25C7/02 ,  C25B11/063

Abstract: The present invention provides an oxygen generation electrode provided with a catalyst layer having a high specific electric conductivity, and having excellent durability such that even when an acidic electrolyte is electrolyzed, the catalyst components are unlikely to be consumed and long-term electrolysis can be performed. The oxygen generation electrode is an oxygen generation electrode 10 provided with a substrate 2 formed with titanium or a titanium alloy, and a catalyst layer 4 disposed on the substrate 2 and formed with a mixed metal oxide, wherein the catalyst layer 4 satisfies at least any one of the following condition (1) and condition (2). Condition (1): containing ruthenium, tin, and trivalent or higher polyvalent metal element excluding a tetravalent metal element. Condition (2): containing ruthenium and tin, and having a content of ruthenium of 40 mol % or more based on the total content of the ruthenium and tin.

公开(公告)号：US11725293B2

公开(公告)日：2023-08-15

申请号：US16599555

申请日：2019-10-11

Applicant: Christopher J. Dares

Inventor： Christopher J. Dares

IPC: C25B11/091 ,  G01N27/30 ,  C25C7/02 ,  C25C1/22 ,  C25B1/55

CPC classification number: C25B11/091 ,  C25B1/55 ,  C25C1/22 ,  C25C7/02 ,  G01N27/305

Abstract: A porous transparent electrode is formed where a film comprising of semiconducting nanoparticles is decorated with polyoxometalates (POMs) bonded to their surfaces. The semiconducting nanoparticles are transparent metal oxide. The semiconducting nanoparticles include tin-doped indium oxide (ITO), fluorine-doped tin oxide (FTO), or titanium dioxide (TiO2). In an embodiment, the POM is [SiW12O40]4−; [α-P2W18O62]6−; or [α2-P2W17O61]10−. The semiconducting nanoparticles bond to the POM through a combination of electrostatic interactions and hydrogen bonds. The porous transparent electrode can be placed in a protonated form or ion-paired with alkali metal cations or tetraalkylammonium cations.

公开(公告)号：US11702755B2

公开(公告)日：2023-07-18

申请号：US17883969

申请日：2022-08-09

Applicant: Mangrove Water Technologies LTD.

Inventor： Saad Dara ,  Beniamin Zahiri

IPC: C25B11/031 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B9/21 ,  B01D61/46 ,  B01D69/02 ,  C01D15/02 ,  C01D15/04 ,  C01D15/08 ,  C01F5/24 ,  C01F11/18 ,  C02F1/461 ,  C02F1/469 ,  C25B1/16 ,  C25C1/02 ,  C25C7/02 ,  C25C7/04 ,  C25B11/048 ,  C25B11/046 ,  C25B9/19 ,  C25B11/053 ,  C25B13/00 ,  C02F101/10 ,  C02F103/08 ,  C02F103/10

CPC classification number: C25B9/23 ,  B01D61/46 ,  B01D69/02 ,  C01D15/02 ,  C01D15/04 ,  C01D15/08 ,  C01F5/24 ,  C01F11/181 ,  C02F1/4693 ,  C02F1/46109 ,  C25B1/16 ,  C25B9/19 ,  C25B9/21 ,  C25B11/032 ,  C25B11/046 ,  C25B11/048 ,  C25B11/052 ,  C25B11/053 ,  C25B13/00 ,  C25C1/02 ,  C25C7/02 ,  C25C7/04 ,  B01D2313/345 ,  B01D2325/10 ,  B01D2325/36 ,  B01D2325/38 ,  B01D2325/42 ,  C02F2001/46142 ,  C02F2001/46166 ,  C02F2101/10 ,  C02F2103/08 ,  C02F2103/10

Abstract: In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.

公开(公告)号：US20190233960A1

公开(公告)日：2019-08-01

申请号：US16317141

申请日：2017-07-10

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Hiroto Watanabe ,  Itsumi Matsuoka ,  Yusuke Senba ,  Hiroshi Kobayashi

IPC: C25C1/08 ,  C25C7/02 ,  C25C7/08 ,  C25D17/12

CPC classification number: C25C1/08 ,  C25C7/02 ,  C25C7/08 ,  C25D17/12

Abstract: Provided are a metal electrodeposition cathode plate, the non-conductive film of which is not susceptible to failure and which can be used repeatedly, and a production method therefor. This cathode plate comprises a metal plate on which multiple disc-shaped protrusions are disposed, and a non-conductive film formed on the non-protrusion flat areas of the metal plate. The minimum film thickness Y of the non-conductive film at positions between the centers of adjacent protrusions is the same or greater than the height X of the protrusions. It is preferred that the height X of the protrusions is 50 μm to 1000 μm.

公开(公告)号：US20180187320A1

公开(公告)日：2018-07-05

申请号：US15394330

申请日：2016-12-29

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Li-Ching CHUNG ,  Chia-Heng YEN ,  Teh-Ming LIANG ,  Ren-Yang HORNG ,  Min-Chao CHANG ,  Hsin SHAO ,  Po-I LIU ,  Chih-Hsiang FANG ,  Yin-Lung HAN ,  Kai-Chun FAN

IPC: C25C7/02 ,  C25C1/20 ,  C25C1/22 ,  C25C7/08

CPC classification number: C25C7/02 ,  C02F1/4691 ,  C02F3/005 ,  C02F3/34 ,  C02F2001/46138 ,  C25C1/20 ,  C25C1/22 ,  C25C7/08

Abstract: The present disclosure provides a valuable metal selectively adsorbing electrode, including: an electrode formed by a carbon-containing material; and a protein of a bacterium of genus Tepidimonas immobilized on the electrode formed by a carbon-containing material to form the valuable metal selectively adsorbing electrode, wherein the valuable metal includes gold, palladium, silver or indium.

公开(公告)号：US09988728B2

公开(公告)日：2018-06-05

申请号：US14874220

申请日：2015-10-02

Applicant: FREEPORT MINERALS CORPORATION

Inventor： Luis A. Gonzalez Olguin ,  Rafael Garcia Navarro ,  Luis Ricardo Olivares ,  Larry R. Todd ,  Ron Haines ,  Chris Zanotti ,  Casey J. Clayton ,  Mark Peabody ,  Scot P. Sandoval

IPC: C25C7/00 ,  C25C7/02 ,  C25C7/04 ,  C25C1/22 ,  C25C1/10 ,  C25C1/08 ,  C25C1/02 ,  C25C1/12

CPC classification number: C25C7/02 ,  C25C1/02 ,  C25C1/08 ,  C25C1/10 ,  C25C1/12 ,  C25C1/22

Abstract: The present invention relates to an anode assembly for use in an electrolytic cell for recovery of metal. The assembly includes a hanger bar, a first perimeter bar, a second perimeter bar, optionally one or more center conductor bars, a base bar, a first tab coupled to the first perimeter bar and/or the base bar, and a second tab coupled to the second perimeter bar and/or the base bar. The assembly may also include insulating separators coupled to the tabs and/or insulators coupled to an active area of the anode assembly. A system includes the anode assembly, a cathode assembly, and a tank.