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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3650. Отображено 100.
18-03-2021 дата публикации

Станок для снятия кромок с катодных матриц

Номер: RU0000203015U1
Автор: Александр Владимирович Качаев, Алексей Николаевич Мишуков, Анатолий Сергеевич Андреев, Андрей Владимирович Афонин, Евгений Александрович Красиков, Иван Олегович Назаров, Михаил Борисович Шаманов, Михаил Сергеевич Кочнев, Николай Николаевич Снытко, Сергей Валентинович Денисов
Принадлежит: Акционерное общество "Новгородский металлургический завод" (АО "НМЗ")

Полезная модель предназначена для удаления отслуживших свой срок пластмассовых кромок с матриц для их замены и содержит механизм фиксации матрицы с приводом, узлы ножей, установленные на стойках опоры с возможностью горизонтального и вертикального перемещения с помощью приводов, содержащих механизмы вертикального и горизонтального перемещения. При этом механизм фиксации матрицы закреплен на раме для установки матрицы, размещенной между стойками опоры, механизмы вертикального перемещения ножей выполнены по типу гайка - винт и установлены в стойках опоры, а механизмы горизонтального перемещения ножей снабжен направляющими. Достигается увеличение срока службы за счет упрощения конструкции и повышение ее надежности. 10 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 203 015 U1 (51) МПК C25C 7/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК C25C 7/06 (2020.08) (21)(22) Заявка: 2020137733, 16.11.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 18.03.2021 (45) Опубликовано: 18.03.2021 Бюл. № 8 Адрес для переписки: 620027, Екатеринбург, ул. Шевченко, 9, оф. 115, пат. пов. Прянчикова Т.Г. U 1 (56) Список документов, цитированных в отчете о поиске: SU 827605 A1, 07.09.1981. SU 112142 A1, 01.01.1958. SU 1100333 А1, 30.06.1984. US 4406769 A1, 27.09.1983. DE 4312798 A1, 21.10.1983. R U (54) Станок для снятия кромок с катодных матриц (57) Реферат: Полезная модель предназначена для удаления отслуживших свой срок пластмассовых кромок с матриц для их замены и содержит механизм фиксации матрицы с приводом, узлы ножей, установленные на стойках опоры с возможностью горизонтального и вертикального перемещения с помощью приводов, содержащих механизмы вертикального и горизонтального перемещения. При этом механизм фиксации матрицы закреплен Стр.: 1 на раме для установки матрицы, размещенной между стойками опоры, механизмы вертикального перемещения ножей выполнены по типу гайка - винт и установлены в ...

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Номер записи: 1
14-06-2012 дата публикации

Blood Measuring Apparatus

Номер: US20120145536A1
Автор: Yoshihiro Niiyama
Принадлежит: Nihon Kohden Corp

A blood measuring apparatus includes: first and second chambers which communicate with each other through an aperture; first and second electrodes which are disposed respectively in the first chamber and the second chamber; and a controller: which performs blood measurement by causing a current to flow between the first and second electrodes in a state where diluted blood is contained in the first chamber and diluting solution is contained in the second chamber; and which performs electrolysis by applying a voltage between the first and second electrodes in a state where diluting solution is contained in the first and second chambers, thereby producing washing solution, and which performs washing on at least the aperture, and the first and second chambers by using the produced washing solution.

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Номер записи: 2
04-10-2012 дата публикации

Process for changing a spent anode and support and system for the temporary storage of such a spent anode

Номер: US20120246923A1
Автор: Christian Cloue, John MacLeod, Maxime Faure
Принадлежит: Rio Tinto Alcan International Ltd

The process involves pouring a smothering powder onto a spent anode placed on a support to cover it, with the aim of limiting fluorinated gas emission by the anode. The support may include a temporary tank, pre-filled with powder and provided with an opening for discharging the powder towards the anode on the support.

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Номер записи: 3
07-02-2013 дата публикации

Multipolar Magnesium Cell

Номер: US20130032487A1
Автор: Olivo Sivilotti
Принадлежит: Individual

Molten metal is continuously produced by electrolysis of a molten electrolyte which is denser than the metal in an electrolytic multipolar cell characterized by a high and stable current efficiency. Molten metal droplets are separated from the circulating electrolyte along a set of horizontal channels of gravity settlers disposed between the electrolysis chamber and the metal collecting chamber. Thereafter the metal rises to and floats on the surface of the electrolyte in the metal collection chamber, is conveyed to a metal collecting reservoir immersed in the electrolyte and periodically removed to maintain the cell in continuous operation. The coalescence of the metal droplets is enhanced by sealing the cell to prevent ingress of air into the chlorine room and into the front compartment. The sealing is obtained by lowering the joint between the covers and the cell walls to levels close to the electrolyte level and by using large impervious ceramic tiles in the lowered joint, in the barrier wall between the chlorine room and the front compartment and as a cladding of the walls of the cover of the electrolysis chamber and by cladding the exposed graphite surfaces with a gas barrier foil. The barrier wall and other consumable components are removable without emptying the cell, for an increased campaign life. Surplus heat is controllably and safely extracted from the electrolyte in a recoverable way by a set of evaporative heat extraction devices immersed in the electrolyte across the circulating stream.

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Номер записи: 4
14-03-2013 дата публикации

ALUMINUM ELECTROLYSIS CELL WITH COMPRESSION DEVICE AND METHOD

Номер: US20130062217A1
Автор: Beeler Richard M.
Принадлежит: ALCOA INC.

In accordance with the instant disclosure, aluminum electrolysis cells having reduced cathode voltage drop and methods of operating the same are provided. More particularly, the instant disclosure provides a compression device for applying a force to an end of the current collector subassembly to improve the contact, thereby reducing the joint resistance across the interface between the cathode block and the current collector subassembly. The compression device is used in conjunction with the systems and methods of the instant disclosure. 1. An aluminum electrolysis cell , comprising:an anode;a cathode assembly, having a cathode block, a slot in the cathode block, and a current collector subassembly, wherein the current collector subassembly is at least partially disposed in the slot; andan axial compression device, adjacent to an end of a current collector subassembly and adapted to apply force onto an end of the current collector subassembly,wherein the current collector subassembly is conformed to the slot via the axial compression device.2. The aluminum electrolysis cell of claim 1 , wherein the axial compression device comprises:a spring member adapted to apply force to an end of the current collector bar; anda brace adapted to hold the spring in place on the end of the collector bar.3. The aluminum electrolysis cell of claim 1 , wherein the axial compression device comprises:an adjustable bracket having a screw and a threaded assembly, wherein the adjustable bracket is adapted to fit on an outer end of the current collector subassembly.4. The aluminum electrolysis cell of claim 1 , wherein the axial compression device comprises:a metallic balloon having at least one wall, where the wall encloses a gas-filled void,wherein the metallic balloon is adjacent to an inner cathode collector subassembly end,inside the slot.5. The aluminum electrolysis cell of claim 1 , wherein the axial compression device comprises:a metallic balloon having at least one wall, where the ...

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Номер записи: 5
25-04-2013 дата публикации

DEVICE FOR EXTRACTING SHORT-CIRCUITING WEDGES WHEN SWITCHING IN AN ELECTROLYSIS CELL FOR THE PRODUCTION OF ALUMINUM

Номер: US20130098755A1
Автор: Brun Frédéric, Despinasse Serge
Принадлежит: RIO TINTO ALCAN INTERNATIONAL LIMITED

Extraction device designed to extract a short-circuiting wedge inserted between two conductors to take an electrolysis cell offline. The extraction device includes a means of gripping said wedge and at least one jack directed vertically and including a body and a piston stem. 1. Extraction device designed to extract a short-circuiting wedge , said wedge having been inserted between two conductors to take an electrolytic cell off line , each conductor having at least one upper horizontal face and one substantially vertical face , the substantially vertical face of each conductor being placed opposite the substantially vertical face of the other conductor , the two substantially vertical faces thereby delimiting an air-gap designed to receive said short-circuiting wedge , said wedge comprising two substantially parallel faces , which converge slightly to a bottom of said wedge when said wedge is placed so as to occupy said air-gap , said device including a means of gripping said wedge , wherein said device includes at least one jack directed vertically and comprising a body and a piston associated with a piston stem , wherein:a) one of said body or said stem is interdependent with at least one horizontal support face which is directed downwards and configured so that, when said extraction device is placed above said wedge to extract the wedge, the upper horizontal face of each conductor is in line with the horizontal support face, andb) the other of said stem or said body is connected to said means of gripping said wedge, so that, when said at least one jack is actuated to extract the wedge, said at least one jack is configured to exert opposing forces on said conductors and said wedge, tending to separate said conductors and said wedge.2. Extraction device according to characterized in that said means of gripping includes a fixing part onto which are attached means of fixing working in conjunction with means of fixing engineered in the top part of the wedge which is ...

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Номер записи: 6
25-04-2013 дата публикации

DEVICE FOR EXTRACTING SHORT-CIRCUITING WEDGES DESIGNED FOR SWITCHING IN AN ELECTROLYSIS CELL FOR THE PRODUCTION OF ALUMINUM

Номер: US20130098773A1
Автор: Brun Frédéric, Despinasse Serge, Guerin Jérôme, Rose Alain
Принадлежит:

Extraction device designed to extract a short-circuiting wedge inserted between two conductors to take an electrolysis cell offline. The extraction device includes a means of gripping said wedge and, in conjunction with the upper horizontal face of each conductor, at least one jack directed vertically and including a body and a stem, 1. Extraction device designed to extract a short-circuiting wedge , said wedge having been inserted between two conductors to take an electrolytic cell off line , each conductor having at least one upper horizontal face and one substantially vertical face , the substantially vertical face of each conductor being placed opposite the substantially vertical face of the other conductor , the two substantially vertical faces thereby delimiting an air-gap designed to receive said short-circuiting wedge , said wedge comprising two substantially parallel faces , which converge slightly to a bottom of said wedge when said wedge is placed so as to occupy said air-gap , said device including a means of gripping said wedge , wherein said device includes , in conjunction with the upper horizontal face of each conductor , at least one jack directed vertically and comprising a body and a piston associated with a piston stem , wherein:a) one of said stem or said body is interdependent with at least one horizontal support face directed downwards and configured so that, when said extraction device is placed above said wedge to extract the wedge, said upper horizontal face of the conductor is in line with said horizontal support face, andb) the other of said body or said stem is connected to said means of gripping said wedge, so that, when said at least one jack is actuated to extract the wedge, said at least one jack is configured to exert opposing forces on said conductors and said wedge, tending to separate said conductors and said wedge.2. Extraction device according to characterized in that each jack is a hydraulic actuating cylinder.3. Extraction ...

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Номер записи: 7
23-05-2013 дата публикации

APPARATUS FOR USE IN ELECTROREFINING AND ELECTROWINNING

Номер: US20130126337A1
Автор: GRANT Duncan
Принадлежит:

An apparatus for use in the electro-production of metals, comprising a plurality of anodes and a plurality of cathodes in an interleaved configuration, wherein each anode and cathode pair forms a cell; a plurality of power supplies, each cell associated with one or more respective power supplies; and the power supplies are arranged to control a direct current in the one or more cells to a predetermined value. 174-. (canceled)75. An apparatus for use in the electro-production of metals , comprising a plurality of anodes and a plurality of cathodes in an interleaved configuration , wherein each anode and cathode pair forms a cell;a plurality of power supplies, each cell associated with one or more respective power supplies; andthe power supplies are arranged to control a direct current in the one or more cells to a predetermined value.76. The apparatus as claimed in claim 75 , in which each power supply is associated with a controller arranged to control the direct current such that a current density in the one or more cells is at a predetermined value.77. The apparatus as claimed in claim 75 , in which the current is controlled as a function of at least one of cathode-anode separation within a cell claim 75 , cathode-anode voltage across a cell claim 75 , electrode size claim 75 , electrode configuration claim 75 , electrode flatness claim 75 , electrode quality claim 75 , electrode impedance claim 75 , temperature claim 75 , electrolyte concentration claim 75 , and the evolution over time of a current to voltage characteristic of the cell.78. The apparatus as claimed in claim 76 , in which each controller is associated with or part of its associated power supply.79. The apparatus as claimed in claim 76 , in which each power supply includes a current measuring device and an associated controller controls the operation of the power supply in response to current measurements made by the current measuring device.80. The apparatus as claimed in claim 75 , in which as ...

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Номер записи: 8
29-08-2013 дата публикации

INSTALLATION AND INDUSTRIAL OPERATION OF AN AIR SUPPLY SYSTEM TO DOSE GIVEN AIR FLOWS TO EACH INDIVIDUAL CELL OF A SET OF ELECTROLYTIC CELLS

Номер: US20130220831A1
Автор: Beltran Navarro Edgardo, Vidaurre Heiremans Victor, Vidaurre Miller Victor Manuel
Принадлежит: ANCOR TECMIN, S.A.

The invention refers to an air supply system () for a group of cells () arranged for dosing the individual air demand of each electrolytic cell () that must be fed to its electrolyte through a system of controlled air diffusion. It comprises a low pressure blower (), a central feed pipe () and a plurality of feed branches (); a flow meter () and a flow regulator () are associated to each feed branch. The assembly is connected to a bent hose () arranged on the walls of said electrolytic cell () to allow connection with an isobaric ring (), so that the fed air can be diffused homogeneously and sustainedly in time to the electrolyte through selectively perforated hoses (). The present invention also refers to the process of installation, calibration and operation of the air supply system. 1142. An air supply system () for a group of cells () arranged for dosing the individual air demand of each electrolytic cell () that must be fed to its electrolyte through a system of controlled air diffusion , characterized in that it comprises:{'b': '5', 'at least one low pressure blower ();'}{'b': 6', '5', '6', '7', '2, 'at least one central feed pipe () connected to said at least one blower (), wherein from said at least one central air feed pipe () emerge a plurality of feed hose branches () that reach up to the front wall of each electrolytic cell ();'}{'b': 8', '8', '9, 'a flow meter () arranged in each of said feed hose branches, the volume of air measured by said flow meter () being regulated by a flow regulator (), and'}{'b': 8', '10', '7', '11', '7', '10', '9', '11', '12', '2', '13', '3', '16, 'wherein said flow meter () is connected between a first feed hose () of said branch () and a second feed hose () of said branch (), said first hose () being connected with flow regulator () and said second hose () being connected to a portion of bent hose () suitable to be affixed on the walls of said electrolytic cell () to allow a hose end () to be connected with an isobaric ring ...

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Номер записи: 9
24-10-2013 дата публикации

TOOL TROLLEY FOR ELECTROLYSIS MULTIFUNCTIONAL MACHINE SET

Номер: US20130276580A1
Автор: Chen Cairong, Duan Xiaoming, Kong Lizhen, Liu Hong, Liu Shengfei, Lv Guanghua, Yan Yan
Принадлежит:

A tool trolley for an electrolysis multifunctional machine set comprises: a frame (); a hopper () fixed to the frame; a tool rotarytable () disposed at the lower portion of the hopper and rotatable around the hopper; an operating cab () disposed below the center of the tool rotarytable; a crust breaking tool (), an anode replacing tool (), a grab bucket tool () for cleaning anode pit and a feeding tool () of the tool rotarytable flexibly connected to the tool rotarytable disposed around the operating cab; a rotation drive mechanism () disposed between the hopper and the tool rotarytable. The tools are radially configured around the operating cab which is rotatable within ±190 degrees or stationary, and meanwhile, the operating console in the operating cab may also be rotated ±90 degrees. Therefore, it is convenient for operation, and the operator is provided with a wider view. The tool trolley is simple in structure, and can be installed and maintained in an easier and quicker manner. The configuration of such a tool trolley breaks through the conventional manners, and the product is more novel in appearance. 1. A tool trolley for an electrolysis multifunctional machine set , characterized by comprising:a frame;a hopper fixed to the frame;a tool rotarytable disposed at the lower portion of the hopper and rotatable around the hopper;an operating cab disposed below the center of the tool rotarytable;a crust breaking tool, an anode replacing tool, a grab bucket tool for cleaning anode pit, and a feeding tool, which are flexibly connected to the tool rotarytable around the operating cab; anda rotation drive mechanism disposed between the hopper and the tool rotarytable.26. The tool trolley for an electrolysis multifunctional machine set according to claim 1 , characterized in that the anode replacing tool () is a single anode replacing tool or a double anode replacing tool.3. The tool trolley for an electrolysis multifunctional machine set according to claim 1 , ...

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Номер записи: 10
05-12-2013 дата публикации

SYSTEM, METHOD AND APPARATUS FOR MEASURING ELECTROLYSIS CELL OPERATING CONDITIONS AND COMMUNICATING THE SAME

Номер: US20130319874A1
Автор: Hosler Robert, Tarcy Gary, Wang Xiangwen
Принадлежит: ALCOA INC.

System, method and apparatus for measuring electrolysis cell operating conditions and communicating the same are disclosed. The system includes a selectively positionable member coupled to an analytical apparatus, wherein the selectively positionable is configured to move the analytical apparatus into and out of physical communication with a bath. The system may also include a crust breaker for breaking the surface of a bath and an electronic device for measuring bath level. 1. A method comprising: operating a metal electrolysis cell comprising a bath; moving an analytical apparatus using a selectively positionable member from a first position to a second position , wherein in the first position the analytical apparatus is not in physical communication with the bath , wherein in the second position the analytical apparatus is in physical communication with the bath; measuring at least one operating condition related to the bath using the analytical apparatus; and communicating the operating condition to a host computer through a network.2. The method of claim 1 , further comprising: detecting a delta between the first position and the second position using an electronic device.3. The method of claim 2 , further comprising: communicating the delta to the host computer through the network.4. The method of claim 2 , wherein the analytical apparatus and the electronic device are integrated claim 2 , and wherein the selectively positionable member claim 2 , the analytical apparatus and the electronic device are automated.5. The method of claim 2 , wherein the operating condition comprises bath superheat claim 2 , bath temperature claim 2 , bath constituent concentration claim 2 , bath constituent ratio claim 2 , and bath level.6. The method of claim 5 , wherein the metal electrolysis cell is an aluminum electrolysis cell claim 5 , wherein the bath constituent concentration is the concentration of alumina claim 5 , and wherein the bath constituent ratio is the ratio of ...

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Номер записи: 11
12-12-2013 дата публикации

Method and system for electrolytically reducing a solid feedstock

Номер: US20130327653A1
Автор: Allen Richard Wright, Peter G. Dudley
Принадлежит: Metalysis Ltd

In a method of electrolytically reducing a solid feedstock, for example a solid metal oxide feedstock, an electrode module is positioned in a first position to be loaded with the feedstock. The loaded module is then transferred from the first position and engaged with an electrolysis chamber containing a molten salt. A voltage is applied to the electrode module to reduce the solid feedstock. The loaded module may be transferred within a transfer module.

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Номер записи: 12
20-03-2014 дата публикации

DRY CELL START-UP OF AN ELECTROLYTIC CELL FOR ALUMINUM PRODUCTION

Номер: US20140076733A1
Автор: Cayouette Robert, Laplante François
Принадлежит: RIO TINTO ALCAN INTERNATIONAL LIMITED

A method for starting up an electrolytic cell () for aluminum production having a cathode block () with an upper surface (), the method comprising: disposing contact resistance material () over the upper surface () of the cathode block (); lowering a plurality of anodes () to abut the contact resistance material (); filling the electrolytic cell () and covering the anodes () with solid electrolyte material () comprising crushed electrolytic bath material, cryolite, or mixtures thereof; delivering electrical current to the anodes () to at least partially melt the solid electrolyte material () and raising the anodes () when a predetermined depth of molten electrolyte material has been reached. 1. A method for starting up an electrolytic cell for aluminum production , the electrolytic cell having a cathode block with an upper surface , the method comprising:disposing contact resistance material on said upper surface of the cathode block;lowering a plurality of anodes to abut the contact resistance material;filling the electrolytic cell to a height covering the anodes with solid electrolyte material, the solid electrolyte material comprising crushed electrolytic bath material, cryolite, or mixtures thereof;delivering electrical current to the anodes to at least partially melt the solid electrolyte material; andraising the anodes away from the cathode block when a predetermined depth of molten electrolyte material has been reached.2. A method as claimed in claim 1 , wherein the contact resistance material is discontinuously disposed at predetermined positions on said upper surface of the cathode block.3. A method as claimed in claim 1 , wherein the anodes are raised gradually until the anodes reach a pre-determined height above the upper surface of the cathode block.4. A method as claimed in claim 1 , wherein the electrolytic cell is filled with the solid electrolyte material and the anodes are covered by the solid electrolyte material before electrical current is ...

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Номер записи: 13
03-04-2014 дата публикации

Systems and methods for stereoscopic imaging of aluminum electrolysis pot tending operations

Номер: US20140090984A1
Автор: Gilles Dufour, Harold FRENETTE, Jean-Pierre Gagné, Rene TRUDEL
Принадлежит: Alcoa Inc

Systems and methods for stereoscopic imaging and viewing of aluminum electrolysis and related operation and/or maintenance activities are disclosed. The system may produce stereoscopic images based at least in part on images obtained from two or more imaging devices. The system may display the stereoscopic images for viewing to facilitate aluminum electrolysis cell operation and/or maintenance.

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Номер записи: 14
06-01-2022 дата публикации

Method and apparatus for producing aluminum material

Номер: US20220002892A1
Автор: Junji Nunomura, Tetsuya Tsuda, Yoichi Kojima, Yukio Honkawa
Принадлежит: UACJ Corp

A method for producing an aluminum material, including: providing an electrolytic cell in which an anode electrode containing 0.01 to 30% by mass Si and Al and a cathode electrode are immersed in an electrolytic solution and depositing aluminum on the cathode electrode by energizing the anode electrode and the cathode electrode in the electrolytic solution.

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Номер записи: 15
07-01-2016 дата публикации

DEVICE FOR MONITORING CURRENT DISTRIBUTION IN INTERCONNECTED ELECTROLYTIC CELLS

Номер: US20160002800A1
Автор: PRADO Felix
Принадлежит:

The present invention relates to a device for the continuous monitoring of current distribution in the cathodes and anodes of an electrolyser comprised of at least two adjacent electrolytic cells, each containing a multiplicity of said cathodes and anodes. The device according to the invention is composed essentially of at least one current-collecting bus-bar having housings suitable for supporting the electrodes and a base of insulating material whereon the bus-bar abuts. The base has integrated probes for measuring voltage. The invention also relates to a permanent monitoring system allowing to evaluate in continuous current distribution on each electrode in cells used in particular in metal electrowinning or electrorefining. The invention also relates to a method for retrofitting of an electrolyser comprising the replacement of an existing insulating base with a new base element having integrated probes for measuring voltage. 1. Device for continuously monitoring current distribution in cathodes and anodes of an electrolyser consisting of at least two adjacent electrolysis cells , each containing a multiplicity of said cathodes and anodes , said device comprising at least one inter-cell current collecting bus-bar and at least one base element , said inter-cell current collecting bus-bar consisting of an elongated main body of homogeneous electrical conductivity , said body comprising housings for supporting said cathodes and/or anodes and establishing an electrical contact therewith , said housings being evenly spaced apart , said inter-cell current collecting bus-bar abutting on said at least one base element made of insulating material equipped with integrated probes for detecting an electrical voltage and for establishing electrical contacts in correspondence of said housings of said inter-cell current collecting bus-bar , wherein said probes for detecting an electrical voltage and establishing electrical contacts are equipped with a retractable tip in ...

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Номер записи: 16
05-01-2017 дата публикации

METHOD FOR OPTIMIZING THE YIELD OF ELECTROEXTRACTION OF HEAVY METALS IN AQUEOUS SOLUTION WITH A HIGH SALT CONCENTRATION, AND DEVICE FOR THE IMPLEMENTATION THEREOF

Номер: US20170002472A1
Автор: BEUGNET Michel
Принадлежит:

The invention relates to technical conditions of composition and use applied to the existing method and device for extracting heavy metals from an aqueous solution with a high salt concentration, with the single aim of adapting said method to technical, technological and ecological developments that have taken place since the protection thereof, and substantially optimising the results. To this end, the invention of the present patent application adds, to the device of the initial patent, an electronic control means (MC) that can manage three new actions. Disclosed are also modifications in the quality, function, destination and operation of certain elements of the device as well as the addition of a filter at the end of the electroplating operation, the purpose of which is to optimise the quality of the rejected effluent. 1. A method of optimizing the yield of the electroextraction of heavy metals in an aqueous solution with a high salt concentration , wherein the method comprises:managing, controlling, and regulating operations linked to the extraction of heavy metals via electrolysis in an aqueous solution with a high salt concentration;{'b': 6', '7', '8', '9', '10', '11, 'adding one or more sensitive probes (SP) in order to be introduced into the solution to be treated between pairs of electrodes ()(), ()() and ()(), and'}filtering the treated aqueous solution with a high salt concentration using an additional filter (EFF).2. The method of optimizing the yield of the electroextraction of heavy metals in an aqueous solution with a high salt concentration according to claim 1 , wherein electronic control means (CM) in charge of providing for the management claim 1 , control and regulation of the operations claim 1 , control the interruption of the electrical power supply (PC) of the electrolysis device for successive limited durations and a periodicity determined according to the chemical composition of the solution to be treated and the texture of the electrodes ...

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Номер записи: 17
07-01-2016 дата публикации

ARRANGEMENT FOR MEASURING ELECTRIC CURRENT IN AN INDIVIDUAL ELECTRODE IN AN ELECTROLYSIS SYSTEM

Номер: US20160002801A1
Автор: Barker Michael H., GRANT Duncan, NORDLUND Lauri, RANTALA Ari, VIRTANEN Henri K.
Принадлежит:

The invention relates to a method and current measuring arrangement for measuring electric current flowing in an individual electrode in an electrolysis system. The electrolysis system comprises a plurality of interleaved electrodes (), cathodes () and anodes (), arranged in an electrolysis cell () and immersed in electrolyte, said electrolysis system having a busbar () disposed on a separating cell wall () between each of the two adjacent cells to conduct electric current to the electrodes via a contact point () between the busbar and a hanger bar () of the electrode, and the current sensing arrangement comprises a magnetic field sensing means () for measuring the magnetic field induced by said current. The magnetic field sensing means () are arranged to sense the magnetic field substantially at the level of the contact point (). 1. A method of measuring electric current flowing in an individual electrode in an electrolysis system com-prising a plurality of interleaved electrodes , cathodes and anodes , arranged in an electrolysis cell and immersed in electrolyte , said electrolysis system having a busbar disposed on a separating cell wall between each of the two adjacent cells to conduct electric current to the electrodes via a contact point between the busbar and a hanger bar of the electrode , and in which method the electric current of each electrode is measured by measuring the magnetic field induced by said current , characterized in that the magnetic field is sensed substantially at the level of the contact point.2. The method according to claim 1 , characterized in that the magnetic field is sensed with a magnetic circuit being arranged to encircle the contact point substantially in a horizontal plane at the level of the contact point.3. The method according to claim 2 , characterized in that the magnetic circuit is an open loop current sensor.4. The method according to claim 2 , characterized in that the magnetic circuit is a closed loop current sensor.5. ...

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Номер записи: 18
07-01-2016 дата публикации

Measurement of electric current in an individual electrode in an electrolysis system

Номер: US20160002802A1
Автор: Ari Rantala, Duncan Grant, Henri K. Virtanen, Lauri Nordlund, Michael H. Barker
Принадлежит: Outotec Finland Oy

The invention relates to a method and current measuring arrangement for measuring electric current flowing in an individual electrode in an electrolysis system. The electrolysis system comprises a plurality of interleaved electrodes ( 1, 2 ), cathodes ( 1 ) and anodes ( 2 ), arranged in an electrolysis cell ( 3 ) and immersed in electrolyte, said electrolysis system having a busbar arrangement ( 4 ) disposed on a separating cell wall ( 5 ) between each of the two adjacent cells. The busbar arrangement comprises an equaliser busbar ( 6, 7, 8, 9, 10, 11 ) to electrically connect anodes in one cell to cathodes in a next cell providing the current with multiple electrical pathways between electrodes, said electrical connection being formed by contact points ( 12 ) between the equaliser busbar ( 6, 7, 8, 9, 10, 11 ) and hanger bars ( 13 ) of the electrodes. The electric current in the equaliser busbar ( 6, 7, 8, 9, 10, 11 ) is measured by magnetic field sensing means ( 15, 16 ) arranged at measuring points ( 14 ) located between each pair of the adjacently neighboring contact points ( 12 ).

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Номер записи: 19
07-01-2021 дата публикации

Continuous reprocessing of spent nuclear fuel

Номер: US20210005336A1
Автор: Ian Richard Scott
Принадлежит: Individual

Spent nuclear fuel is added to an electro-reduction cell, wherein the electro-reduction cell includes a halide salt electrolyte, and anode, and a cathode including an alloy of uranium and a first metal forming a low melting point alloy with uranium, the first metal being one or more of: iron; chromium; nickel; manganese; and cobalt. The spent nuclear fuel is electrochemically reduced at a potential sufficient to reduce plutonium and lanthanides in the spent nuclear fuel, to form a molten alloy of the first metal, uranium and higher actinides present in the spent nuclear fuel. The alloy is extracted from the electro-reduction cell while uranium oxide is present in the electro-reduction cell. The spent nuclear fuel includes uranium oxide and at least 1 mol of lanthanides per tonne of uranium in the spent nuclear fuel, and the electro-reduction cell is operated at a temperature above the melting point of the alloy.

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Номер записи: 20
08-01-2015 дата публикации

METHOD OF SEPARATING AND RECOVERING METALS AND SYSTEM FOR SEPARATING AND RECOVERING METALS

Номер: US20150008136A1
Автор: KANAMURA Shohei, MIZUGUCHI Koji, NAKAMURA Hitoshi, OOMORI Takashi, TAKAHASHI Yuya, Yamada Akira
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a method of separating and recovering metals whereby a mixture containing at least a first metal and a second metal, the second metal having a higher standard electrode potential than that of the first metal, is connected to an anode in a molten salt, and the first metal and the second metal are precipitated on a cathode in the molten salt by electrolysis, the method of separating and recovering metals comprising: a detection step of detecting a concentration change in each of a first metal ion and a second metal ion in the molten salt by a concentration change detection unit; a first electrolysis step of electrolyzing the first metal; a first recovery step of recovering a precipitated substance according to a detection in which a concentration decrease of the first metal ion, which is predefined in the concentration change detection unit, is detected in the detection step; a second electrolysis step of electrolyzing the second metal; and a second recovery step of recovering a precipitated substance subsequent to the first recovery step. 1. A method of separating and recovering metals , whereby a mixture containing at least a first metal and a second metal , the second metal having a higher standard electrode potential than that of the first metal , is connected to an anode in a molten salt , and the first metal and the second metal are precipitated on a cathode in the molten salt by electrolysis , the method of separating and recovering metals comprising:a detection step of detecting a concentration change in each of a first metal ion and a second metal ion in the molten salt by a concentration change detection unit;a first electrolysis step of electrolyzing the first metal;a first recovery step of recovering a precipitated substance according to a detection in which a concentration decrease of the first metal ion, which is predefined in the concentration change detection unit, is detected in the detection step;a second electrolysis ...

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Номер записи: 21
12-01-2017 дата публикации

ANODE STRUCTURE FOR METAL ELECTROWINNING CELLS

Номер: US20170009359A1
Автор: PRADO PUEO Felix
Принадлежит:

An anodic structure for electrowinning cells having an anode hanger bar, a support structure of insulating material, at least one anode mesh having a valve metal substrate provided with a catalytic coating, said at least one anode being subdivided into at least two reciprocally insulated sub-meshes, said sub-meshes being individually supplied with electrical current through conductive means connected with said anode hanger bar, the anodic structure being further provided with at least one electronic system having at least one current probe and at least one actuator for individually measuring and controlling current supply to each of said sub-meshes. 1. An anodic structure for electrowinning cells comprising an anode hanger bar , a support structure of insulating material , at least one anode mesh having a valve metal substrate provided with a catalytic coating , said at least one anode mesh being subdivided into at least two reciprocally insulated sub-meshes , said sub-meshes being individually supplied with electrical current through conductive means connected with said anode hanger bar , the anodic structure being further provided with at least one electronic system comprising at least one current probe and at least one actuator for individually measuring and controlling current supply to each of said sub-meshes.2. The anodic structure according to wherein said at least one anode mesh is subdivided into sub-meshes of area ranging from 25 cmto 225 cm.3. The anodic structure according to claim 1 , wherein said conductive means are metal plates claim 1 , bars or cables.4. The anodic structure according to claim 3 , wherein said metal bars claim 3 , plates or cables are made of electrically conductive material with electric resistivity at 20° C. of 1.5×10to 3.0×10Ω×m.5. The anodic structure according to claim 4 , wherein said electrically conductive material is chosen among copper claim 4 , aluminium or alloys thereof.6. The anodic structure according to claim 1 , ...

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Номер записи: 22
11-01-2018 дата публикации

ACTINIDE AND RARE EARTH DRAWDOWN SYSTEM FOR MOLTEN SALT RECYCLE

Номер: US20180010256A1
Автор: FIGUEROA Javier, TYLKA Magdalena M., Wiedmeyer Stanley G., Williamson Mark A., Willit James L.
Принадлежит: UCHICAGO ARGONNE, LLC

A method for recycling molten salt from electrorefining processes, the method having the steps of collecting actinide metal using a first plurality of cathodes from an electrolyte bath, collecting rare earths metal using a second plurality of cathodes from the electrolyte bath, inserting the collected actinide metal and uranium into the bath, and chlorinating the inserted actinide metal and uranium. Also provided is a system for recycling molten salt, the system having a vessel adapted to receive and heat electrolyte salt, a first plurality of cathodes adapted to be removably inserted into the vessel, a second plurality of cathodes adapted to be removably inserted into the vessel, an anode positioned within the vessel so as to be coaxially aligned with the vessel, and a vehicle for inserting uranium into the salt. 1. A method for recycling molten salt from electrorefining processes , the method comprising:a) collecting actinide metal using a first plurality of cathodes from an electrolyte bath;b) collecting rare earth metal using a second plurality of cathodes from the electrolyte bath;c) inserting the collected actinide metal and uranium into the bath; andd) chlorinating the inserted actinide metal and uranium.2. The method as recited in wherein the chlorinating step utilizes chlorine gas generated during the collecting steps.3. The method as recited in wherein the actinides are collected on the first plurality of cathodes at a first temperature and then removed from the electrolyte bath.4. The method as recited in wherein the rare earth metals collected on the second plurality of cathodes at a second temperature and then removed from the electrolyte bath.5. The method as recited in wherein the second temperature is higher than the first temperature.6. The method as recited in wherein the chlorine gas is injected into the bottom of the electrolyte bath from interior regions of an anode while the first plurality of cathodes is in the bath.7. The method as recited in ...

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Номер записи: 23
09-01-2020 дата публикации

Electrode Configurations for Electrolytic Cells and Related Methods

Номер: US20200010967A1
Автор: LIU Xinghua
Принадлежит:

In one embodiment, an electrolytic cell for the production of aluminum from alumina includes: at least one anode module having a plurality of anodes; at least one cathode module, opposing the anode module, wherein the at least one cathode module comprises a plurality of cathodes, wherein the plurality of anodes are suspended above the cathode module and extending downwards towards the cathode module, wherein the plurality of cathodes are positioned extending upwards towards the anode module, wherein each of the plurality of anodes and each of the plurality of cathodes are alternatingly positioned, wherein the plurality of anodes is selectively positionable in a horizontal direction relative to adjacent cathodes, wherein the anode module is selectively positionable in a vertical direction relative to the cathode module, and wherein a portion of each of the anode electrodes overlap a portion of adjacent cathodes. 1. An electrolytic cell , comprising:at least one anode module having a plurality of anodes, wherein each of the plurality of anodes is an oxygen-involving electrode;at least one cathode module, opposing the anode module, wherein the at least one cathode module comprises a plurality of cathodes, wherein each of the plurality of anodes and each of the plurality of cathodes have surfaces thereon that are vertically oriented and spaced one from another, wherein the cathodes are wettable, and wherein the at least one cathode module is coupled to a bottom of the electrolytic cell;a cell reservoir;an electrolyte disposed within the cell reservoir; anda metal pad disposed within the cell reservoir,wherein the plurality of anodes are at least partially immersed in the electrolyte and suspended above the cathode module and extending downwards towards the cathode module,wherein the plurality of cathodes are completely immersed in the electrolyte,wherein the plurality of cathodes are positioned in the cell reservoir extending upwards towards the anode module,wherein ...

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Номер записи: 24
28-01-2016 дата публикации

Air Bubbling Valves System In Electrolysis Cells That Decrease The Production Losses Due to Breakage or Physical Damages; And Its Operation Method

Номер: US20160024672A1
Автор: Aylwin Gomez Pedro Alejandro, Cortes Busch Sergio Eduardo, Escobar Celery Hernan Alejandro, Lagos Lagos Nicolas Ignacio, Lopez Parraguez David Fernando
Принадлежит:

A system for producing metals includes a reservoir for containing an electrolyte solution and a plurality of conduits disposed within the reservoir. A first gas distributor is operatively coupled with respective first ends of the conduits, and a second gas distributor is operatively coupled with respective second ends of the conduits. Each of the conduits has valves at the respective ends, prior to the first and second gas distributors. A method for producing metals includes bubbling gas into an electrolyte solution through a plurality of conduits and identifying a leak in at least one conduit by closing the respective valves and visually inspecting the bubbling of gas into the electrolyte solution from the remaining plurality of conduits. 13-. (canceled)4. A system for producing metals , comprising:a reservoir for containing an electrolyte solution;a plurality of conduits disposed within the reservoir, each conduit having a first end and an oppositely disposed second end, and having apertures operative for bubbling gas into the electrolyte solution;a first gas distributor operatively coupled with the respective first ends of the plurality of conduits for fluid communication therewith; anda second gas distributor operatively coupled with the respective second ends of the plurality of conduits for fluid communication therewith;at least one of the conduits having a first valve at the first end and prior to the first gas distributor, and having a second valve at the second end and prior to the second gas distributor.5. The system of claim 4 , further comprising:a first distributor valve proximate an inlet to the first gas distributor; anda second distributor valve proximate an inlet to the second gas distributor.6. The system of claim 4 , further comprising:a protective cover surrounding at least a portion of at least one of the first gas distributor or the second gas distributor.7. A method for producing metals claim 4 , the method comprising:bubbling gas into an ...

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Номер записи: 25
26-01-2017 дата публикации

SYSTEM, METHOD AND APPARATUS FOR MEASURING ELECTROLYSIS CELL OPERATING CONDITIONS AND COMMUNICATING THE SAME

Номер: US20170022619A1
Автор: Hosler Robert, Tarcy Gary, Wang Xiangwen
Принадлежит: ALCOA INC.

System, method and apparatus for measuring electrolysis cell operating conditions and communicating the same are disclosed. The system includes a selectively positionable member coupled to an analytical apparatus, wherein the selectively positionable is configured to move the analytical apparatus into and out of physical communication with a bath. The system may also include a crust breaker for breaking the surface of a bath and an electronic device for measuring bath level. 1. A method comprising: operating a metal electrolysis cell comprising a bath; moving an analytical apparatus using a selectively positionable member from a first position to a second position , wherein in the first position the analytical apparatus is not in physical communication with the bath , wherein in the second position the analytical apparatus is in physical communication with the bath; measuring at least one operating condition related to the bath using the analytical apparatus; and communicating the operating condition to a host computer through a network.2. The method of claim 1 , further comprising: detecting a delta between the first position and the second position using an electronic device.3. The method of claim 2 , further comprising: communicating the delta to the host computer through the network.4. The method of claim 2 , wherein the analytical apparatus and the electronic device are integrated claim 2 , and wherein the selectively positionable member claim 2 , the analytical apparatus and the electronic device are automated.5. The method of claim 2 , wherein the operating condition comprises bath superheat claim 2 , bath temperature claim 2 , bath constituent concentration claim 2 , bath constituent ratio claim 2 , and bath level.6. The method of claim 5 , wherein the metal electrolysis cell is an aluminum electrolysis cell claim 5 , wherein the bath constituent concentration is the concentration of alumina claim 5 , and wherein the bath constituent ratio is the ratio of ...

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Номер записи: 26
10-02-2022 дата публикации

ENERGY MANAGEMENT METHOD AND ARRANGEMENT

Номер: US20220042181A1
Автор: Järvinen Ari, Sopo Harri
Принадлежит:

There is provided an energy management method, comprising steps of conducting () electric energy from an energy production plant () to an energy storage facility (), applying, in the energy storage facility (), the received electric energy on a chemical compound () to separate the chemical compound to a first component () and a second component (), and storing (), in the energy storage facility (), the first component and the second component separately. 1. An energy management method , comprising:conducting electric energy produced by an energy production plant to an energy storage facility;applying, in the energy storage facility, the received electric energy to a chemical compound to separate the chemical compound into a first component and a second component, wherein the first component comprises an alkaline metal and the second component comprises a halogen gas;storing, in the energy storage facility, the first component and the second component separately; andbringing the first component and the second component together to re-form the chemical compound and to produce energy when needed.2. The energy management method according to further comprising:detecting an over production situation in a power grid where all the energy available is not consumed by consumers connected to the power grid; andinitiating the conducting of electric energy from the energy production plant to the energy storage facility upon detection of an over production situation in the power grid.3. The energy management method according to claim 1 , wherein the chemical compound comprises sodium chloride claim 1 , and the first component comprises sodium and the second component comprises chloride.4. The energy management method according to claim 1 , further comprising:recovering energy electrochemically and/or thermoelectrically.5. The energy management method according to claim 1 , wherein the first component and the second component are recovered from their respective storages and ...

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Номер записи: 27
10-02-2022 дата публикации

METHOD FOR EXTRACTING URANIUM WITH COUPLING DEVICE OF WIND POWER GENERATION AND URANIUM EXTRACTION FROM SEAWATER

Номер: US20220042194A1
Автор: Chen Tao, DUAN Tao, HE Rong, LEI Jia, Li Yi, YANG Fan, ZHU Wenkun
Принадлежит: SOUTHWEST UNIVERSITY OF SCIENCE AND TECHNOLOGY

A method for extracting uranium with a coupling device of wind power generation and uranium extraction from seawater includes the following steps: adding oxygen vacancy (OV)-containing InOto absolute ethanol, and subjecting a resulting mixture to stirring and ultrasonic treatment to obtain a solution of InOin absolute ethanol; coating the solution uniformly on carbon cloth, and drying to obtain carbon cloth coated with OV-containing InO; inserting the coated carbon cloth (as a working electrode) and another blank carbon cloth (as a counter electrode) into a plastic carrier of a coupling device; fixing a small wind power generation apparatus above the plastic carrier, and connecting the working electrode and the counter electrode to a storage battery of the apparatus via wires; and placing the coupling device in seawater, and after the storage battery is charged, energizing the working electrode and the counter electrode to extract uranium from the seawater. 1. A method for extracting uranium with a coupling device of wind power generation and uranium extraction from seawater , comprising the following steps:{'sub': 2', '3-x', '2', '3-x, 'step 1, adding oxygen vacancy (OV)-containing InOto absolute ethanol to obtain a first mixture, and subjecting the first mixture to stirring for 0.5 h to 1 h and then to ultrasonic treatment for 0.5 h to 1 h to obtain a solution of InOin absolute ethanol;'}{'sub': 2', '3-x', '2', '3-x, 'step 2, coating the solution of InOin absolute ethanol uniformly on carbon cloth; and after the coating is completed, naturally drying the carbon cloth to obtain carbon cloth coated with OV-containing InO;'}{'sub': 2', '3-x, 'step 3, using the carbon cloth coated with OV-containing InOas a working electrode and blank carbon cloth as a counter electrode; and inserting the working electrode and the counter electrode into a plastic carrier of the coupling device, separately;'}step 4, fixing a small wind power generation apparatus above the plastic ...

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Номер записи: 28
24-01-2019 дата публикации

SYSTEMS AND METHODS FOR PRODUCING METAL CLUSTERS; FUNCTIONALIZED SURFACES; AND DROPLETS INCLUDING SOLVATED METAL IONS

Номер: US20190024250A1
Автор: Baird Zane, Cooks Robert Graham, Li Anyin, Pradeep Thalappil
Принадлежит:

The invention generally relates to systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions. In certain aspects, the invention provides methods that involve providing a metal and a solvent. The methods additionally involve applying voltage to the solvated metal to thereby produce solvent droplets including ions of the metal containing compound, and directing the solvent droplets including the metal ions to a target. In certain embodiments, once at the target, the metal ions can react directly or catalyze reactions. 120-. (canceled)21. A functionalized substrate comprising:a substrate; andat least one discrete spot on the substrate, the spot comprising an aggregate of uncapped metal nanoparticles, wherein each nanoparticle of the aggregate maintains its individual features.22. The substrate according to claim 21 , wherein the substrate comprises a plurality of discrete spots.23. The substrate according to claim 22 , wherein the spots are patterned onto the substrate.24. The substrate according to claim 21 , further comprising a sample.25. The substrate according to claim 24 , wherein the sample is below the aggregate of uncapped metal nanoparticle.26. The substrate according to claim 24 , wherein the sample is above the aggregate of uncapped metal nanoparticle.27. The substrate according to claim 21 , wherein the substrate comprises a metal.28. The substrate according to claim 21 , wherein the uncapped metal nanoparticles comprise silver.29. The substrate according to claim 21 , wherein the uncapped metal nanoparticles are uniform in size.30. The substrate according to claim 21 , wherein the aggregates are non-spherically shaped.31. A method for producing a functionalized substrate claim 21 , the method comprising:providing a substrate; andspraying, under ambient conditions, metal ions from a droplet emitter onto a discrete location on the substrate, thereby producing an aggregate of metal nanoparticles at ...

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Номер записи: 29
23-01-2020 дата публикации

SYSTEMS AND METHODS FOR PRODUCING METAL CLUSTERS; FUNCTIONALIZED SURFACES; AND DROPLETS INCLUDING SOLVATED METAL IONS

Номер: US20200024762A1
Автор: Baird Zane, Cooks Robert Graham, Li Anyin, Pradeep Thalappil
Принадлежит:

The invention generally relates to systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions. In certain aspects, the invention provides methods that involve providing a metal and a solvent. The methods additionally involve applying voltage to the solvated metal to thereby produce solvent droplets including ions of the metal containing compound, and directing the solvent droplets including the metal ions to a target. In certain embodiments, once at the target, the metal ions can react directly or catalyze reactions. 120-. (canceled)21. A method for producing a functionalized substrate , the method comprising:providing a substrate;providing a focusing mask; andspraying, under ambient conditions, metal ions from a droplet emitter toward the focusing mask such that the ions interact with the focusing mask and are focused to a discrete location on the substrate, thereby producing an aggregate of metal nanoparticles at the discrete location on the substrate.22. The method according to claim 21 , further comprising:moving to at least one other discrete location on the substrate; andspraying, under ambient conditions, metal ions from a droplet emitter toward another location on the focusing mask such that the ions interact with the other location on the focusing mask and are focused to another discrete location on the substrate, thereby producing an aggregate of uncapped metal nanoparticles at the other discrete location on the substrate.23. The method according to claim 21 , wherein the method is repeated a plurality of times to produce an array of discrete spots.24. The method according to claim 22 , further comprising depositing a sample on the substrate.25. The method according to claim 24 , wherein the sample is deposited prior to the spraying step.26. The method according to claim 24 , wherein the sample is deposited after to the spraying step.27. The method according to claim 21 , wherein the substrate ...

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Номер записи: 30
01-02-2018 дата публикации

Electro-thermochemical Li Cycling for NH3 Synthesis from N2 and H2O

Номер: US20180029895A1
Автор: CARGNELLO Matteo, Jaramillo Thomas F., Kibsgaard Jakob, LIN John, McEnaney Joshua M., Nørskov Jens K., Schwalbe John, Singh Aayush Ranjan
Принадлежит:

An electro-thermochemical cycling system for producing ammonia is provided that includes a reaction chamber having a metal compound input port, an anode suitable for oxidation in contact with the metal compound and configured for oxidation of hydroxide ions to water and oxygen, a cathode suitable for plating in contact with the metal compound and configured to electrolyze the metal compound to metal, a voltage source connecting the cathode and anode, a nitrogen port to the reaction chamber that combines nitrogen with the electrolyzed metal on the cathode to form a metal-nitrogen compound proximal to the nitrogen input, an atomic hydrogen port to the reaction chamber that combines with the metal-nitrogen compound to form ammonia, and an ammonia output port from the reaction chamber, where a metal compound input port inputs the metal compound to the reaction chamber according to a depletion rate of the metal compound in the reaction chamber. 1) An electro-thermochemical cycling system for producing ammonia , comprising:a) a reaction chamber comprising a metal compound input port, wherein a metal compound is input to said reaction chamber through said metal compound input port;b) an anode suitable for oxidation, wherein said anode is in contact with said metal compound, wherein said anode is configured for oxidation of anions;c) a cathode that is suitable for plating, wherein said cathode is configured to electrolyze said metal compound to metal;d) a voltage source, wherein said voltage source connects said cathode to said anode;e) a nitrogen port to said reaction chamber containing said electrolyzed metal, wherein nitrogen from said nitrogen port combines with said electrolyzed metal to form a metal-nitrogen compound proximal to said nitrogen input;f) an atomic hydrogen port to said reaction chamber containing said metal-nitrogen compound, wherein atomic hydrogen from said atomic hydrogen port combines with said metal-nitrogen compound to form ammonia; andg) an ...

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Номер записи: 31
04-02-2016 дата публикации

SYSTEM AND METHOD FOR REMOVAL OF METALS FROM SOLUTION

Номер: US20160032474A1
Автор: FENG Zhange, SAMIA Anna Cristina, SCHERSON Daniel
Принадлежит:

A process to extract metal ions and potentially other hazardous species present in solution to levels low enough to make it suitable for use and/or to quantify the levels of these contaminants in the solution. The process involves the use of functionalized magnetic particles to bind with metal ions. The process occurs in a three-chambered cell and utilizes a magnet to agglomerate the magnetic particles bound with metal ions to an electrode, and by altering the pH of the solution within the cell using gases produced by a solid state electrolyzer or from the air, encourages the plating of the metal ions on the electrode and the pushing out of the metal-free solution out of the cell. 1. A process for extracting a metal species from a solution , said process comprising:(a) providing a solution to an electrochemical cell comprising a cathode, the solution comprising a metal ion to be removed from the solution;(b) introducing a plurality of functionalized magnetic particles into the solution, the functionalized magnetic particles comprising a functional group suitable for binding the metal ion;(c) adjusting the pH of the solution by oxidizing hydrogen or reducing oxygen produced by a solid state polymeric electrolyzer or from the air to promote binding of the metal ion to the functionalized magnetic particles;(d) magnetically drawing the particles to the cathode; and(e) applying an electrical current to the cell and plating the metal ions onto the cathode.2. The process of claim 1 , wherein a magnetic force is applied to the cathode prior to providing the solution to the electrochemical cell such that the functionalized magnetic particles are associated with the cathode.3. The process of claim 2 , wherein introducing the functionalized particles into the solution comprises removing the magnetic force from the cathode such that the functionalized magnetic particles are dispersed in the water solution.4. The process of claim 1 , comprising repeating steps (b) through (e) ...

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Номер записи: 32
31-01-2019 дата публикации

SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELLS

Номер: US20190032232A1
Автор: DiMilia Robert A., Dynys Joseph M., LIU Xinghua, Martello Jeffrey S.
Принадлежит: Alcoa USA Corp.

Broadly, the present disclosure relates to sidewall features (e.g. inner sidewall or hot face) of an electrolysis cell, which protect the sidewall from the electrolytic bath while the cell is in operation (e.g. producing metal in the electrolytic cell). 1. An electrolysis cell , comprising:an anode;a cathode in spaced relation from the anode;a molten electrolyte bath in liquid communication with the anode and the cathode; wherein the cell body is configured to retain the molten electrolyte bath;', 'wherein the sidewall comprises: a polarized sidewall portion, wherein the polarized sidewall portion is in liquid communication with the molten electrolyte bath., 'a cell body comprising a sidewall and a bottom,'}2. The apparatus of claim 1 , wherein the polarized sidewall portion is one of:an anodically polarized sidewall, a cathodically polarized sidewall, and combinations thereof.3. The apparatus of claim 2 , wherein the polarized sidewall portion comprises:a cathodically polarized sidewall, wherein the cathodically polarized sidewall is positioned below the bath-vapor interface and adjacent to the bottom of the cell body such that the cathodically polarized sidewall is in liquid communication with the bottom of the cell.4. The apparatus of claim 1 , wherein the polarized sidewall portion comprises:at least 50% of surface of the inner sidewall.5. The apparatus of claim 1 , further comprising:a non-polarized sidewall portion, wherein both the polarized sidewall portion and the non-polarized sidewall portion are adjacent to each other and in liquid communication with the molten electrolyte bath.6. The apparatus of claim 5 , wherein the non-polarized sidewall portion is positioned above the cathodically polarized sidewall and is in communication with the bath-air interface.7. The apparatus of claim 5 , wherein the non-polarized sidewall portion is selected from the group consisting of:a thermal conductor; a stable material; a frozen ledge device, and combinations thereof. ...

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Номер записи: 33
06-02-2020 дата публикации

METHOD AND APPARATUS FOR RECOVERY OF NOBLE METALS, INCLUDING RECOVERY OF NOBLE METALS FROM PLATED AND/OR FILLED SCRAP

Номер: US20200040475A1
Автор: Brosseau André, Moskovchenko Svitlana
Принадлежит: Greene Lyon Group, Inc.

Systems and methods for the recovery of noble metal from noble-metal-containing material are generally described. Certain embodiments related to systems and methods in which an electric current is transported between an electrode and the noble metal of a noble-metal-containing material to dissolve at least a portion of the noble metal from the noble-metal-containing material. The dissolved noble metal can subsequently be precipitated out of solution and recovered, according to certain embodiments. Noble metals can be recovered from any suitable noble-metal-containing material, including plated and/or filled scrap materials and/or other materials. 1. A system for recovering noble metals from a noble metal-containing material , comprising:an electrode;a noble-metal containing material; andan electrolytic solution comprising a sulfonic acid and/or persulfuric acid,wherein the system is configured such that, when an electric current is transported between the electrode and the noble metal, the noble metal is removed from the noble metal-containing material; andwherein the electrolytic solution comprises a mixture of acid and water and has a water content of less than or equal to 30 weight percent.2. The system of claim 1 , wherein the electrolytic solution comprises a sulfonic acid.3. The system of claim 1 , wherein the electrolytic solution comprises persulfuric acid.4. (canceled)5. The system of claim 1 , wherein the electrolytic solution comprises an aqueous solution of a sulfonic acid.7. The system of claim 1 , wherein the electrolytic solution comprises an aqueous solution of an alkanesulfonic acid claim 1 , comprising an alkyl group containing 1-5 carbon atoms.8. The system of claim 1 , wherein the electrolytic solution comprises an aqueous solution of methanesulfonic acid.9. (canceled)10. The system of claim 1 , wherein the electrolytic solution comprises a peroxymonosulfate ion (SO) and/or a peroxydisulfate ion (SO).11. The system of claim 1 , wherein the system ...

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Номер записи: 34
16-02-2017 дата публикации

METHOD FOR HIGH-THROUGHPUT MICRO-SAMPLING ANALYSIS OF ELECTROCHEMICAL PROCESS SALTS

Номер: US20170045423A1
Автор: Bailey James L., LAUNIERE Cari A., PEREIRA Candido, Wiedmeyer Stanley G.
Принадлежит: UCHICAGO ARGONNE, LLC

Briefly, the invention provides a method for analyzing molten salt electrolyte involving extracting a sample of a molten salt electrolyte from an electrorefiner or other process vessel or conduit; generating droplets from the sample, where the droplets are at a first temperature; transporting the droplets to detectors, where during transport, the droplets attain a second temperature that is lower than the first temperature; analyzing the droplets at or below the second temperature; and returning the droplets to the process. Also provided is a system for analyzing molten salt electrolyte using a droplet generator. 1. A method for analyzing a process fluid , said method comprising the steps of:a) extracting fluid from a process stream;b) generating droplets from the extracted fluid, wherein the droplets are at a first temperature;c) transporting the droplets to detectors, wherein during transport, the droplets attain a second temperature that is lower than the first temperature;d) analyzing the droplets at or below the second temperature; ande) returning the droplets to the stream.2. The method of wherein the step of generating the droplets comprises directing the extracted fluid to a droplet generator comprising:a first molten salt reservoir and a second molten salt reservoir, where the first molten salt reservoir is positioned above the second molt salt reservoir;a first molten salt conduit providing fluid communication between the first reservoir and the second reservoir, wherein the first conduit defines an upstream region having a first cross sectional area and a downstream region having a second cross sectional area which is reversibly constricted.a midstream region of the conduit forming an aperture such that the aperture resides between the upstream region and the downstream region of the first conduit;and a means of molten salt egress from a depending end of the downstream region of the first molten salt conduit, said egress means positioned between the ...

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Номер записи: 35
25-02-2021 дата публикации

Electrochemical reactor for processes for non-ferrous metal electrodeposition, which comprises a set of apparatuses for gently agitating an electrolyte, a set of apparatuses for containing and coalescing an acid mist, and a set of apparatuses for capturing and diluting acid mist aerosols remaining in the gas effluent of the reactor

Номер: US20210054515A1
Автор: Victor Eduardo VIDAURRE HEIREMANS
Принадлежит: Individual

The invention relates to an electrochemical reactor for continuous copper electrodeposition at high current densities with copper sulfate electrolytes, which comprises devices and systems of functional means that are linked and operated in line, thereby forming a “triad”, for standardising operational conditions in a series of operative parallel reactors. The triad, installed in each existing or new electrolytic container, comprises: a gentle electrolyte agitation system (AGSEL) with means for pulsing control of the aeration volume diffused by bubbling directed into each inter-cathodic space; a “duo” of systems linked in line, which comprises a system of removable anode covers (CAR) for containing, confining and coalescing the acid mist; and an acid mist recycling system (SIRENA) that captures non-coalesced electrolyte aerosols and condenses the steam, returning same to the process, while the pollutants of the gaseous fluid from the reactor are substantially diluted.

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Номер записи: 36
22-02-2018 дата публикации

DIELECTRIC BARRIER DISCHARGE PLASMA METHOD AND APPARATUS FOR SYNTHESIZING METAL PARTICLES

Номер: US20180051382A1
Автор: BOUCHARD Mathieu, FORTIN Marc-André, SARRA-BOURNET Christian, TURGEON Stéphane
Принадлежит:

A dielectric barrier discharge (DBD) plasma apparatus for synthesizing metal particles is provided. The DBD plasma apparatus includes an electrolyte vessel for receiving an electrolyte solution comprising metal ions; an electrode spaced-apart from the electrolyte vessel; a dielectric barrier interposed between the electrolyte vessel and the electrode such that, when the electrolyte solution is present in the electrolyte vessel, the dielectric barrier and an upper surface of the electrolyte solution are spaced-apart from each other and define a discharge area therebetween; and gas inlet and outlet ports in fluid communication with the discharge area such that supplying gas in the discharge area while applying an electrical potential difference between the electrode and the electrolyte solution cause a plasma to be produced onto the electrolyte solution, the plasma interacting with the metal ions and synthesizing metal particles. A method for synthesizing metal particles using a DBD plasma apparatus is also provided. 1. A method for synthesizing metal particles , comprising:providing a dielectric barrier discharge (DBD) plasma apparatus, the DBD plasma apparatus comprising an electrolyte vessel, an electrode spaced-apart from the electrolyte vessel, and a dielectric barrier interposed between the electrolyte vessel and the electrode;introducing an electrolyte solution comprising metal ions inside the electrolyte vessel, the electrolyte solution having an upper surface spaced-apart from the dielectric barrier;supplying gas into a discharge area extending between the upper surface of the electrolyte solution and the dielectric barrier; andapplying an alternating or pulsed direct electrical potential difference between the electrode and the electrolyte solution, an amplitude of the electrical potential difference being sufficient to produce a plasma onto the electrolyte solution so as to interact with the metal ions and thereby synthesize the metal particles.2. The ...

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Номер записи: 37
03-03-2022 дата публикации

Vertically Integrated Pure Lithium Metal Production and Lithium Battery Production

Номер: US20220069278A1
Автор: Emilie Bodoin
Принадлежит: Pure Lithium Corp

Methods are proposed for fabricating highly pure lithium metal electrodes from aqueous lithium salt solutions by means of electrolysis through lithium ion selective membranes, performed at constant current densities between about 10 mA/cm 2 and about 50 mA/cm 2 , and wherein the constant current is applied for a time between about 1 minute and about 60 minutes. The electrolysis is performed under a blanketing atmosphere, the blanketing atmosphere being substantially free of lithium reactive components. Methods are further proposed for vertically integrating the electrolytic fabrication of highly pure lithium metal electrodes into the production of lithium metal batteries, the fabrication of lithium electrodes and lithium metal batteries being performed in a single facility.

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Номер записи: 38
02-03-2017 дата публикации

METHOD OF CONTROLLING AN ALUMINUM REDUCTION CELL WITH THE MINIMUM POWER

Номер: US20170058413A1
Автор: BORZYKH Sergey Dmitrievich
Принадлежит:

This invention refers to metallurgy of aluminum, specifically, to the method of extracting aluminum by molten salt reduction, namely, the method of controlling an aluminum reduction cell by the minimum power. This method consists in measuring the resistive voltage drop in the reduction cell, comparison of the measured value with the set voltage drop value in the reduction cell and elimination of the mismatch by the relevant anode displacement. The anode displacement reduces the mismatch between the heating power and the set value until the minimum power is released in the reduction cell. Release of the minimum power is determined by the spontaneous growth of the electrochemical component of the reduction cell voltage, this mismatch is maintained with the relevant anode displacement without any variations in the thermal state of the reduction cell. The invention enables to reduce the electric power consumption, enhance the current metal yield and reduce the labor intensity of reduction cell maintenance. 1. The method of controlling the aluminum reduction cell by measuring the resistive voltage drop in the reduction cell , comparing the measured value with the set voltage drop in the reduction cell and eliminating the mismatch by displacing the relevant anode characterized by displacing the anode , thus reducing the mismatch between the heating power and the set value until the release of the minimum power in the reduction cell; determining the release of the minimum power by the spontaneous growth of the electrochemical component of the reduction cell voltage and maintaining this mismatch by the relevant anode displacement without changing the thermal state of the reduction cell.2. The method of characterized by creating the mismatch between the heating power and the set value with the minimum power release in the reduction cell during the period of reduction cell thermal constant and maintaining in each period of measurement the resistive voltage drop in the ...

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Номер записи: 39
02-03-2017 дата публикации

Methods And Systems For Reducing Impurity Metal From A Refinery Electrolyte Solution

Номер: US20170058415A1
Автор: Bender Jack, Emmerich Nathan C.
Принадлежит:

Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: 2. The method of claim 1 , wherein Rin the phosphate ester is a branched or linear C6-C18 alkyl group.3. The method of claim 1 , wherein the phosphate ester comprises iso-octyl phosphoric acid claim 1 , 2-ethylhexyl phosphoric acid claim 1 , octophenyl phosphoric acid or nonylphenyl phosphoric acid.4. The method of claim 3 , wherein the phosphate ester comprises iso-octyl phosphoric acid or a C12 alkyl phenylphosphoric acid.5. The method of claim 4 , further comprising contacting the refinery electrolyte solution comprising an impurity metal with a di-substituted phosphate ester.6. The method of claim 1 , further comprising contacting the electrolyte solution with a solubility modifier.7. The method of claim 1 , further comprising contacting the electrolyte solution with a kinetic modifier.8. The method of claim 1 , wherein the impurity metal is selected from the group consisting of bismuth claim 1 , antimony claim 1 , tin and combinations thereof.10. The method of claim 9 , wherein Rin the phosphate ester is a branched or linear C6-C12 alkyl group.11. The method of claim 9 , wherein the phosphate ester comprises iso-octyl phosphoric acid claim 9 , 2-ethylhexyl phosphoric acid claim 9 , octophenyl phosphoric acid or nonylphenyl phosphoric acid.12. The method of claim 11 , wherein the phosphate ester comprises iso-octyl phosphoric acid.13. The method of claim 12 , wherein the phosphate ester comprises phenylphosphoric acid.14. The method of claim 9 , further comprising mixing the loaded organic solution with a strip solution to provide a strip solution containing impurity metal and stripped organic.15. The method of claim 14 , wherein the stripped organic is mixed with fresh electrolyte solution with impurities.16. The ...

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Номер записи: 40
02-03-2017 дата публикации

Methods And Systems For Reducing Impurity Metal From A Refinery Electrolyte Solution

Номер: US20170058416A1
Автор: Jack BENDER, Nathan C. Emmerich
Принадлежит: BASF SE

Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: wherein R 1 comprises a linear, branched or cyclic alkyl or aryl group, and wherein the impurity metal is selected from the group consisting of iron, antimony, arsenic, bismuth, tin and combinations thereof.

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Номер записи: 41
04-03-2021 дата публикации

ANCHOR SYSTEMS FOR LIFTING AN ELECTROLYTIC VESSEL

Номер: US20210062352A1
Автор: Dufresne Robert
Принадлежит:

A liftable electrolytic vessel including at least one anchor assembly being at least partially embedded in each of two opposed core walls to provide anchorage to a lifting accessory of a lifting device; and related method for lifting the electrolytic vessel. Each anchor assembly comprises an anchor having a strap slot, and a strap connected to the anchor and extending from the anchor along and inside at least a portion of the corresponding core wall. The anchor further includes a connector which is sized and configured to receive a fastener or engage a lifting accessory such as a chain or a hook. The anchor assembly may include one anchor provided at each end of the strap. A plurality of anchor assemblies may extend vertically and horizontally within a core of the vessel to offer various anchorage points from an outer surface of the core. Design of the anchor of a first anchor assembly may differ from the design of a second anchor assembly. A lifting accessory is further designed to be securable to each anchor of the vessel. 1. An electrolytic vessel for refining metals and being liftable by a lifting device , the electrolytic vessel comprising: a core base for contacting a floor, and', 'four core walls extending upwardly from peripheral edges of the core base; and, 'a core shaped to hold an electrolytic liquid, the core comprising an anchor providing anchorage to a lifting accessory of the lifting device; and', 'a strap connected to the anchor and extending from the anchor along and inside at least a portion of a corresponding core wall., 'at least one anchor assembly being at least partially embedded in each of two opposed core walls, each anchor assembly comprising2. The electrolytic vessel of claim 1 , wherein the anchor comprises:a main component having a strap slot for receiving the strap therein; anda connector mounted about the main component and connectable to the lifting accessory.3. The electrolytic vessel of claim 2 , wherein the connector is protruding ...

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Номер записи: 42
28-02-2019 дата публикации

ELECTRODE STRUCTURE PROVIDED WITH RESISTORS

Номер: US20190062937A1
Автор: FIORUCCI Alessandro, MOJANA Corrado, PEREGO Michele, PERRONE Paolo
Принадлежит:

The invention relates to an electrode which can be employed in the cells of plants for the electrolytic extraction of copper and other non-ferrous metals from ionic solutions. The electrode consists of an apparatus comprising at least one anodic panel for the evolution of oxygen or chlorine connected through a plurality of resistors in parallel to at least one distribution structure for electrical current. The panel may optionally exhibit areas of electrical discontinuity. The invention also relates to an electrolyser using the electrode described above. 1. Anodic apparatus for electrorefinement or electrolytic extraction of non-ferrous metals comprising at least one anodic panel , which is used as an anode and presents at least one surface capable of evolving oxygen or chlorine , and at least one electrical current distribution structure , characterized by the fact that said at least one electrical current distribution structure is electrically connected to said at least one anodic panel by a plurality of resistors set in parallel with one another , each resistor of said plurality of resistors having a resistance , measured at 40° C. , equal to or greater than 5·10Ω.2. The apparatus of wherein said at least one anodic panel is made up of a substrate made of valve metal or its alloys and at least one catalytic coating.3. The apparatus of wherein said at least one anodic panel is chosen from mesh claim 1 , perforated plates or louver structures.4. The apparatus according to wherein each anodic panel is electrically connected to at least one electrical current distribution structure by a number of between 15 and 600 resistors set in parallel.5. The apparatus of wherein said at least one anodic panel is equipped with at least one zone of partial or total electrical discontinuity.6. The apparatus of wherein said plurality of resistors is connected to said at least one anodic panel through a plurality of electrical connection regions situated on the panel and said at ...

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Номер записи: 43
10-03-2016 дата публикации

ELECTROLYTIC CELL FOR METAL ELECTROWINNING

Номер: US20160068982A1
Автор: Calderara Alice, FAITA Giuseppe, FIORUCCI Alessandro, IACOPETTI Luciano
Принадлежит:

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. 1. Metal electrowinning cell comprising:an anode with a catalytic surface towards oxygen evolution reaction;a cathode suitable for metal deposition from an electrolytic bath, arranged parallel to said anode;an electrically conductive porous screen interposed between said anode and said cathode and connected to said anode through a microprocessor configured to detect a voltage between said porous screen and said anode.2. The cell according to wherein said microprocessor is configured to compare said detected voltage between said porous screen and said anode to a reference value and send an alert signal when the difference between said detected voltage and said reference value exceeds a preset threshold.3. The cell according to wherein said porous screen further comprises a means of vertical displacement actuated by said microprocessor when the difference between said detected voltage and said reference value exceeds a preset threshold.4. The cell according to wherein said means of vertical displacement comprises a rod connecting said porous screen to a spring actuated through said microprocessor.5. The cell according to wherein said microprocessor has an inlet impedance of at least 1 kΩ.6. The cell according to wherein said microprocessor has an inlet impedance of at least 1 MΩ.7. The cell according to wherein the surface said porous screen is sensibly less catalytic towards oxygen evolution than said anode.8. The cell according to wherein said porous screen consists of a titanium mesh or punched sheet provided with a coating catalytically inert towards oxygen evolution reaction.9. The cell according to wherein said ...

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Номер записи: 44
09-03-2017 дата публикации

METHODS FOR RECOVERING METALS FROM ELECTRONIC WASTE, AND RELATED SYSTEMS

Номер: US20170067135A1
Автор: Clark Gemma, Diaz Aldana Luis A., Dufek Eric J., Keller Philip, LISTER TEDD E, Parkman Jacob A.
Принадлежит:

A method of recovering metals from electronic waste comprises providing a powder comprising electronic waste in at least a first reactor and a second reactor and providing an electrolyte comprising at least ferric ions in an electrochemical cell in fluid communication with the first reactor and the second reactor. The method further includes contacting the powders within the first reactor and the second reactor with the electrolyte to dissolve at least one base metal from each reactor into the electrolyte and reduce at least some of the ferric ions to ferrous ions. The ferrous ions are oxidized at an anode of the electrochemical cell to regenerate the ferric ions. The powder within the second reactor comprises a higher weight percent of the at least one base metal than the powder in the first reactor. Additional methods of recovering metals from electronic waste are also described, as well as an apparatus of recovering metals from electronic waste. 1. A method of recovering metals from electronic waste , the method comprising:providing a powder comprising electronic waste in at least a first reactor and a second reactor;providing an electrolyte comprising at least ferric ions in an electrochemical cell in fluid communication with the first reactor and the second reactor;contacting the powder within the first reactor with the electrolyte to dissolve at least one base metal from the powder into the electrolyte and reduce at least some of the ferric ions to ferrous ions;contacting the powder within the second reactor with the electrolyte to dissolve at least one base metal from the powder into the electrolyte, the powder in the second reactor comprising a higher weight percent of the at least one base metal than the powder in the first reactor; andoxidizing the ferrous ions at an anode of the electrochemical cell to regenerate the ferric ions.2. The method of claim 1 , further comprising reducing the at least one dissolved base metal from each of the first reactor and ...

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Номер записи: 45
15-03-2018 дата публикации

Method for producing copper and apparatus for producing copper

Номер: US20180073156A1
Автор: Masahiro Kato, Masatoshi Majima, Mitsuyasu Ogawa, Tomoyuki Awazu
Принадлежит: Sumitomo Electric Industries Ltd

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.

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Номер записи: 46
24-03-2022 дата публикации

Handling device to be used to convey an intervention tool on an electrolytic cell

Номер: US20220090280A1
Автор: Frederic Brun, Steeve Renaudier
Принадлежит: Rio Tinto Alcan International Ltd

This handling device comprises a chassis carrying the intervention tool, and a means of displacement allowing movement of the chassis, in particular along the superstructure of the electrolytic cell. The means of displacement is adapted to rest against the superstructure.

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Номер записи: 47
16-03-2017 дата публикации

METHOD FOR REDUCING THE FORMATION OF FLUOROCARBONS IN MOLTEN SALT ELECTROLYSIS

Номер: US20170073829A1
Автор: FRIEDRICH Bernd, Hanebuth Marc, TREMEL Alexander, VOGEL Hanno
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A sensor is provided for measuring the concentration of a fluorocarbon in the offgas during molten salt electrolysis of metal compounds. The measurement takes place at time intervals of less than 10 seconds and a controller initiates reduction in an electrolysis voltage if a fluorocarbon limit value of 25 ppm is exceeded. 1. A method for reducing formation of fluorocarbons in molten salt electrolysis of metal compounds , comprising:measuring, by a sensor, concentration of a fluorocarbon in offgas at time intervals of less than 10 seconds; andinitiating, by a controller, a reduction in at least one of an electrolysis voltage and an electrolysis current density at an anode, when a fluorocarbon limit value of not more than 100 ppm is exceeded.2. The method as claimed in claim 1 , wherein said measuring of the fluorocarbon concentration takes place in intervals of less than 2 seconds.3. The method as claimed in claim 2 , wherein said measuring of the fluorocarbon concentration takes place in intervals of less than one second.4. The method as claimed in claim 2 , wherein said measuring of the fluorocarbon concentration takes place in intervals of less than 0.5 second.5. The method as claimed in claim 1 , wherein the fluorocarbon limit value is 10 ppm.6. The method as claimed in claim 1 , wherein the fluorocarbon limit value is 1 ppm.7. The method as claimed in claim 1 , wherein said measuring of the concentration of the fluorocarbon occurs at a plurality of points over a melt surface.8. The method as claimed in claim 7 , wherein one measuring point for said measuring of the concentration of the fluorocarbon is provided per 10 kA current intensity present in an electrolysis system.9. The method as claimed in claim 7 , wherein one measuring point for said measuring of the concentration of the fluorocarbon is provided per 2 kA current intensity present in an electrolysis system.10. The method as claimed in claim 7 , wherein one measuring point for said measuring of the ...

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Номер записи: 48
05-03-2020 дата публикации

METHOD FOR MANUFACTURING HIGH PURITY TIN, ELECTROWINNING APPARATUS FOR HIGH PURITY TIN AND HIGH PURITY TIN

Номер: US20200071842A1
Автор: Imori Toru, Ouchi Takashi, Takahashi Hirofumi, Takemoto Kouichi
Принадлежит: JX NIPPON MINING & METALS CORPORATION

Provided is a method for manufacturing high purity tin including: depositing electrodeposited tin on the surface of a cathode by electrowinning in an electrolytic bath in which a diaphragm is placed between an anode and the cathode, by using a raw material for tin as the anode and a leachate obtained by electrolytically leaching the raw material for tin in a sulfuric acid solution as an electrolytic solution, the electrolytic solution containing a smoothing agent for improving a surface property of the electrodeposited tin; discharging the electrolytic solution from the electrolytic bath such that lead in the discharged electrolytic solution is removed; and putting the electrolytic solution from which lead is removed back into the electrolytic bath. 1. A method for manufacturing high purity tin , the method comprising:depositing electrodeposited tin on the surface of a cathode by electrowinning in an electrolytic bath in which a diaphragm is placed between an anode and the cathode, by using a raw material for tin as the anode and a leachate obtained by electrolytically leaching the raw material for tin in a sulfuric acid solution as an electrolytic solution, wherein the electrolytic solution contains a smoothing agent for improving a surface property of the electrodeposited tin,discharging the electrolytic solution from the electrolytic bath,removing lead from the discharged electrolytic solution, andputting the electrolytic solution from which lead is removed back into the electrolytic bath.2. The method for manufacturing high purity tin according to claim 1 , which comprises:discharging the electrolytic solution in an anode side chamber in the electrolytic bath in which the anode is placed,removing lead from the discharged electrolytic solution, andputting the electrolytic solution from which lead is removed back into a cathode side chamber in the electrolytic bath in which the cathode is placed.3. The method for manufacturing high purity tin according to claim 1 ...

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Номер записи: 49
05-03-2020 дата публикации

PULSE REVERSE CURRENT HIGH RATE ELECTRODEPOSITION AND CHARGING WHILE MITIGATING THE ADVERSE EFFECTS OF DENDRITE

Номер: US20200076010A1
Автор: Hall Timothy D., Inman Maria E., Liu Danny Xin, Taylor Earl Jennings
Принадлежит:

The problem of high rate electrodeposition of metals such as copper during electrowinning operations or high rate charging of lithium or zinc electrodes for rechargeable battery applications while avoiding the adverse effects of dendrite formation such as causing short-circuiting and/or poor deposit morphology is solved by pulse reverse current electrodeposition or charging whereby the forward cathodic (electrodeposition or charging) pulse current is “tuned” to minimize dendrite formation for example by creating a smaller pulsating boundary layer and thereby minimizing mass transport effects leading to surface asperities and the subsequent reverse anodic (electropolishing) pulse current is “tuned” to eliminate the micro- and macro-asperities leading to dendrites. 1. A method of charging a battery , the method comprising: forward cathodic pulses to deposit metal on the battery anode, and', 'between selected successive forward cathodic pulses, applying one or more reverse anodic pulses to polish the battery anode; and, 'applying a microprofile charge to the battery including forward cathodic pulses to deposit metal on the battery anode, and', 'between selected successful forward cathodic pulses applying one or more reverse anodic pulses to polish the battery anode; and, 'subsequent to the application of the microprofile charge to the battery, applying a macroprofile charge to the battery includingsaid micro profile charge and macroprofile charge applied to the battery sequentially.2. The method of in which the microprofile charge includes a cathodic to anodic charge ratio of greater than one claim 1 , an average current density of greater than 5 mA|cma frequency of between 0.10 to 100 Hz claim 1 , a cathodic duty cycle of less than 10% claim 1 , and an anodic duty cycle of greater than 50%.3. The method of where in the macroprofile charge includes a cathodic to anodic charge ratio of greater than 1 claim 1 , an average current density of greater than 5 mA/cm claim 1 , ...

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Номер записи: 50
22-03-2018 дата публикации

Method and apparatus for treating acidic liquid containing metal ions

Номер: US20180079663A1
Автор: Hideyuki Komori, Kazushige Ishida, Mami HIROSE, Mamoru Iwasaki, Motohiro Aizawa, Nobuyuki Ota, Shingo Miyamoto, Takako Sumiya
Принадлежит: Hitachi GE Nuclear Energy Ltd, Kurita Water Industries ltd

A method in which an anode chamber and a cathode chamber are separated by a cation exchange membrane, an acid solution containing metal ions is introduced into the anode chamber, a cathode solution is introduced into the cathode chamber, and a current is applied across the anode and the cathode, whereby the metal ions in the solution in the anode chamber pass through the cation exchange membrane, move into the cathode solution, and precipitate as metal onto the cathode, wherein there are minimal instances where electrodeposition is impossible or the electrodeposition rate decreases. Pre-adding a salt of the acid contained in the acid solution makes it possible to suppress concentration-diffusion of the acid from the acid solution. Adding a salt of the acid into the cathode chamber makes it possible to reduce the impressed voltage, reduce the amount of hydrogen generated on the cathode, and reduce the amount of power.

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Номер записи: 51
22-03-2018 дата публикации

METHOD FOR PRODUCING TUNGSTEN

Номер: US20180080101A1
Автор: KAWAMURA Toshifumi
Принадлежит: JX NIPPON MINING & METALS CORPORATION

Provided is a method for efficiently producing tungsten from a raw material mixture comprising at least one valuable containing tungsten. The present invention relates to a method for producing tungsten, comprising the steps of subjecting a raw material mixture comprising at least one valuable containing tungsten to electrolysis using an organic electrolytic solution to dissolve tungsten in the electrolytic solution; and calcining the electrolytic solution containing dissolved tungsten at a temperature of less than 800° C. to obtain tungsten. 1. A method for producing tungsten , comprising the steps of:subjecting a raw material mixture comprising at least one valuable containing tungsten to electrolysis using an organic electrolytic solution to dissolve tungsten in the electrolytic solution; andcalcining the electrolytic solution containing dissolved tungsten at a temperature of less than 800° C. to obtain tungsten.2. The method for producing tungsten according to claim 1 , wherein the organic electrolytic solution is an organic alkaline electrolytic solution.3. The method for producing tungsten according to claim 2 , wherein the organic alkaline electrolytic solution contains at least one alcohol amine.4. The method for producing tungsten according to claim 3 , wherein the at least one alcohol amine is monoethanolamine and/or triethanolamine.5. The method for producing tungsten according to claim 1 , wherein the raw material mixture contains from 1 to 30% by mass of at least one valuable other than tungsten.6. The method for producing tungsten according to claim 5 , wherein the raw material mixture contains from 1 to 10% by mass of at least one valuable other than tungsten.7. The method for producing tungsten according to claim 6 , wherein the raw material mixture contains from 3 to 10% by mass of at least one valuable other than tungsten.8. The method for producing tungsten according to claim 1 , wherein the electrolysis is carried out by adjusting a temperature ...

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Номер записи: 52
23-03-2017 дата публикации

Parallel Jet Electrolytic Process and Device

Номер: US20170081771A1
Автор: Gao Junjiang, Ning Wantao, Zhou Songlin
Принадлежит:

The invention discloses a parallel jet electrolytic process, wherein an electrolyte after being pressurized is jetted in parallel from a position at the bottom and near a surface of a cathode at a rate of 0.5-2.5 m/s into a gap between the cathode and an anode. During the production process, the pressurized electrolyte is jetted in parallel along the surface of the cathode, and the electrolyte flows from bottom to top at the cathode side and moves from top to bottom at the anode side simultaneously, which thus achieves a side cutting function on the cathode and the anode; and the side cutting flow of the electrolyte from top to bottom at the anode is able to greatly increase the settling rate of the anode slime and avoid its adhesion to the anode to form an anode slime layer. The invention also provides a parallel jet electrolytic device. 1. A parallel jet electrolytic process , wherein an electrolyte after being pressurized is jetted in parallel from a position at the bottom and near a surface of a cathode at a rate of 0.5 to 2.5 m/s into a gap between the cathode and an anode.2. The parallel jet electrolytic process according to claim 1 , wherein the electrolyte is delivered to a pressurization device by a delivery pump and pressurized claim 1 , and the electrolyte has a pressure of 0.5 to 1 Mpa.3. The parallel jet electrolytic process according to claim 1 , wherein the electrolyte is jetted into the gap between the cathode and the anode as two flows claim 1 , in which the first flow is jetted in a flat shape parallel to the surface of the cathode claim 1 , forming a fan-shaped liquid curtain wall close to the surface of the cathode; the second flow is jetted from the side of the first flow that is far away from the cathode; and the electrolyte flows from bottom to top along the surface of the cathode at the cathode side claim 1 , and moves from top to bottom along a surface of the anode at the anode side simultaneously claim 1 , forming an inner circulation.4. ...

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Номер записи: 53
30-03-2017 дата публикации

SYSTEM AND METHOD FOR RECOVERING METAL FROM METAL-CONTAINING WASTE LIQUID

Номер: US20170088964A1
Автор: Lin Hung-Chin
Принадлежит:

Disclosed is a system for recovering metal from metal-containing waste liquid. The system includes a waste liquid storage unit, an extraction unit, and an electrolysis unit. The waste liquid storage unit is configured to store a metal-containing waste liquid. The extraction unit is in fluid connection with the waste liquid storage unit and includes an extraction device and a back-extraction device. The extraction device is configured to collect a target metal ion present in the metal-containing waste liquid, and the back-extraction device is configured to back-extract the target metal ion into a back-extracting liquid to form a metal compound. The electrolysis unit is in fluid connection with the waste liquid storage unit and the extraction unit, configured to reduce the target metal ion to a solid metal, or to dissociate the metal compound and deposit a solid metal. 1. A system for recovering metal from metal-containing waste liquid , comprising:a waste liquid storage unit configured to store a metal-containing waste liquid;an extraction unit in fluid connection with the waste liquid storage unit, including an extraction device and a back-extraction device, wherein the extraction device is configured to collect a target metal ion present in the metal-containing waste liquid, and the back-extraction device is configured to back-extract the target metal ion into a back-extracting liquid to form a metal compound; andan electrolysis unit in fluid connection with the waste liquid storage unit and the extraction unit, configured to reduce the target metal ion to a solid metal, or to dissociate the metal compound and deposit a solid metal.2. The system according to claim 1 , wherein the extraction device is in fluid connection with the back-extraction device through a circulation pipeline claim 1 , and the electrolysis unit is in fluid connection with the waste liquid storage unit and the circulation pipeline through an inlet pipeline thereof.3. The system according to ...

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Номер записи: 54
26-06-2014 дата публикации

ELECTRODE WASHING METHOD AND SYSTEM

Номер: US20140174485A1
Автор: Iverson Gordon Steven, Jickling Robert Stanley
Принадлежит: EPCM Services LTD.

Electrodes are conveyed edgewise along a path. The electrodes can be supported by their bottom peripheral edge and can be maintained generally vertically. A plurality of wash nozzles are positioned adjacent to the path on opposing sides thereof. Wash spray from the nozzles is directed to impinge sides of the electrode. The nozzles can be arranged linearly to form a nozzle array angled so that the wash spray impinges an upper portion prior to a bottom portion of the electrode. Separate sections for rinsing or pre-washing can be provided within a washing chamber. Used water can be collected and recycled. 1. A system for washing electrodes , each of the electrodes including first and second sides and peripheral edges , the system comprising:a) a conveyor for conveying the electrodes edgewise along a path; andb) a plurality of wash nozzles positioned adjacent to the path on opposing sides thereof, the wash nozzles directed towards the path for impinging the electrodes as the electrodes are conveyed along the path.2. The system of claim 1 , wherein the conveyor includes a conveyor belt for supporting a bottom peripheral edge of each electrode.3. The system of claim 2 , wherein the conveyor belt includes at least one support cleat for supporting the bottom peripheral edge of each electrode and maintaining the electrode generally above the conveyor belt.4. The system of claim 3 , wherein the conveyor belt includes at least one safety stop for engaging a rear peripheral edge of the electrode to urge the electrode along the path.5. The system of claim 4 , further comprising a plurality of guide rails arranged laterally on both sides of the path claim 4 , the guide rails for maintaining the electrodes generally vertically as the electrodes are conveyed along the path.6. The system of claim 5 , wherein the wash nozzles are each directed generally perpendicularly to the path.7. The system of claim 6 , wherein two or more of the plurality of wash nozzles are arranged linearly to ...

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Номер записи: 55
07-04-2016 дата публикации

Method For Manufacturing High Purity Tin, Electrowinning Apparatus For High Purity Tin And High Purity Tin

Номер: US20160097139A1
Автор: Imori Toru, Ouchi Takashi, Takahashi Hirofumi, Takemoto Kouichi
Принадлежит:

Provided is a method for manufacturing high purity tin including: depositing electrodeposited tin on the surface of a cathode by electrowinning in an electrolytic bath in which a diaphragm is placed between an anode and the cathode , by using a raw material for tin as the anode and a leachate obtained by electrolytically leaching the raw material for tin in a sulfuric acid solution as an electrolytic solution, the electrolytic solution containing a smoothing agent for improving a surface property of the electrodeposited tin; discharging the electrolytic solution from the electrolytic bath such that lead in the discharged electrolytic solution is removed; and putting the electrolytic solution from which lead is removed back into the electrolytic bath. 1. A method for manufacturing high purity tin , the method comprising:depositing electrodeposited tin on the surface of a cathode by electrowinning in an electrolytic bath in which a diaphragm is placed between an anode and the cathode, by using a raw material for tin as the anode and a leachate obtained by electrolytically leaching the raw material for tin in a sulfuric acid solution as an electrolytic solution, wherein the electrolytic solution contains a smoothing agent for improving a surface property of the electrodeposited tin,discharging the electrolytic solution from the electrolytic bath,removing lead from the discharged electrolytic solution, andputting the electrolytic solution from which lead is removed back into the electrolytic bath.2. The method for manufacturing high purity tin according to claim 1 , which comprises:discharging the electrolytic solution in an anode side chamber in the electrolytic bath in which the anode is placed,removing lead from the discharged electrolytic solution, andputting the electrolytic solution from which lead is removed back into a cathode side chamber in the electrolytic bath in which the cathode is placed.3. The method for manufacturing high purity tin according to claim 1 ...

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Номер записи: 56
14-04-2016 дата публикации

Device for reducing a metal ion from a salt melt

Номер: US20160102411A1
Автор: Alexander Tremel, Bernd Friedrich, Hanno Vogel, Marc Hanebuth
Принадлежит: SIEMENS AG

Between an anode and a cathode, a salt melt containing a metal ion is separated from the anode by a gap across which an electric arc can be formed. The metal ion is deposited on the anode and subsequently removed.

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Номер записи: 57
04-04-2019 дата публикации

RECOVERY OF A METAL FROM PRIMARY AND SECONDARY SULPHURATED MINERALS AND OXIDIZED MINERALS, AND OTHER COMPOSITIONS OF VALUABLE MINERALS

Номер: US20190100846A1
Автор: GÓMEZ VERDEJO Guillermo Sebastián
Принадлежит: Quantum Matrix SPA

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. 1. A method to separate and recover at least one metal from a source of oxidized and/or primary and secondary sulfide ores , the method comprising the following stages:i. providing in a reactor a source of oxidized and/or primary and secondary sulfide ores, where said ores source has a controlled granulometry;ii. determining the value of the dielectric constant of the ores source by electromagnetic, chemical, physical and/or mineralogical characterization;iii. providing an acid leaching composition A with a dielectric constant of at least 2% to 10% greater than the dielectric constant of the ore source;iv. modifying the value of the dielectric constant of the ores source by incorporating to the reactor an aqueous acid composition B having a dielectric constant of at least 2% to 10% greater than the dielectric constant of the ore source;v. contacting the ores source with the acid leaching composition A under controlled conditions of pressure and temperature in the reactor in order to form a mixture between the leaching composition A and the source of ores, where said reactor forms part of a system comprising a generating set and radio frequency amplifier, allowing to providing radio frequency to the mixture,vi. submitting the mixture to stirring and recirculation of the leaching composition A through the system;vii. providing the mixture with a supply oxygen and ozone through an oxygen concentrator and ozonizer, where said supply has been previously submitted to treatment with ultraviolet light generated by an UV unit;viii. allowing the dissolution of the metal and the migration of said metal to the leaching composition in order to provide a composition comprising the solubilized metal (PLS);ix. through an electrochemical separation technique, extracting the ...

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Номер записи: 58
28-04-2016 дата публикации

SYSTEM FOR EVALUATION OF CURRENT DISTRIBUTION IN ELECTRODES OF ELECTROCHEMICAL PLANTS

Номер: US20160115608A1
Автор: PRADO PUEO Felix
Принадлежит:

The present invention relates to a system for direct detection of current supplied to the electrodes of electrolytic cells, particularly useful in non-ferrous metal electrowinning or electrorefining plants. The current distribution on a practically unlimited number of electrodes can be obtained through direct measurement on the electrode hanging bars without requiring the manual intervention of plant staff. 1. System for evaluation of current distribution in cathodes and anodes of a metal electrodeposition plant , the system comprising:at least one electrolysis cell containing an electrolyte;a current bus-bar associated with said at least one electrolysis cell;a multiplicity of cathodes and anodes surmounted by cathodic and anodic hanger bars of homogeneous resistivity and regular geometry in electrical contact therewith, said hanger bars having a terminal part abutting said current bus-bar and being suitable for holding the corresponding cathodes and anodes in position inside said at least one electrolysis cell;wherein said cathodic and anodic hanger bars are equipped with at least one electrical probe connected with at least two contact detection points located on said cathodic and anodic hanger bars in the region delimited by the electrical connection with the current bus-bar and the first electrical connection with the corresponding cathode or anode.2. System for evaluation of current distribution in cathodes and anodes of a metal electrodeposition plant , the system comprising:at least one electrolysis cell containing an electrolyte;a current bus-bars associated with said at least one electrolysis cell;a balance secondary bus-bar;a multiplicity of cathodes and anodes surmounted by cathodic and anodic hanger bars of homogeneous resistivity and regular geometry in electrical contact therewith, said hanger bars having a first terminal part abutting said current bus-bar and a second terminal part abutting said balance secondary bus bar, said hanger bars being ...

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Номер записи: 59
28-04-2016 дата публикации

METHOD FOR METAL ELECTROWINNING AND AN ELECTROWINNING CELL

Номер: US20160115609A1
Автор: Barker Michael H., VIRTANEN Henri K.
Принадлежит: OUTOTEC (FINLAND) OY

The invention relates to a method for electrowinning a metal from an electrolyte in an electrowinning cell that comprises an electrolysis tank, one or more anodes, and one or more cathodes, which anodes and cathodes are housed in the electrolysis tank. The method comprises supplying sulfur dioxide to the anode to depolarize the anode process and to reduce the energy consumption of the electrowinning cell. 1. A method for electrowinning a metal from an electrolyte in an electrowinning cell that comprises an electrolysis tank , one or more anodes , and one or more cathodes , which anodes and cathodes are housed in the electrolysis tank , the method comprising supplying sulfur dioxide to the anode to depolarize the anode process and to reduce the energy consumption of the electrowinning cell , wherein housing each anode in an anode bag of its own and introducing sulfur dioxide into the lower part of the anode bag which anode bag comprises a diaphragm cloth bag or an ion exchange membrane.2. The method according to claim 1 , further comprising introducing sulfur dioxide in gas form into the electrolysis tank in the vicinity of the anode.3. The method according to claim 1 , further comprising dissolving sulfur dioxide into an electrolyte before introducing said electrolyte into the electrolysis tank in the vicinity of the anode.4. The method according to claim 1 , wherein the anodes are comprised of platinum coated titanium mesh.5. The method according to claim 1 , wherein the anodes are comprised of gold coated titanium mesh.6. The method according to claim 1 , wherein the anodes are PbCaSn anodes spray-coated with platinum powder.7. The method according to claim 1 , wherein the anodes are PbCaSn anodes spray-coated with gold powder.8. The method according to claim 1 , wherein the anodes are stainless steel anodes with platinum coating.9. The method according to wherein the anodes are stainless steel anodes with gold coating.10. An electrowinning cell for electrowinning ...

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Номер записи: 60
11-05-2017 дата публикации

SYSTEMS AND METHODS FOR PRODUCING METAL CLUSTERS; FUNCTIONALIZED SURFACES; AND DROPLETS INCLUDING SOLVATED METAL IONS

Номер: US20170130352A1
Автор: Cooks Robert Graham, Li Anyin, Luo Qingjie
Принадлежит:

The invention generally relates to systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions. In certain aspects, the invention provides methods that involve providing a metal and a solvent. The methods additionally involve applying voltage to the solvated metal to thereby produce solvent droplets including ions of the metal containing compound, and directing the solvent droplets including the metal ions to a target. In certain embodiments, once at the target, the metal ions can react directly or catalyze reactions. 1. A method for providing droplets comprising metal ions , the method comprising:contacting a solvent to a metal to produce solvated metal ions;applying voltage to produce solvent droplets comprising the solvated metal ions; anddirecting the solvent droplets comprising the solvated metal ions to a mass spectrometer.2. The method according to claim 1 , wherein the solvent droplets are directed to the mass spectrometer by a force selected from the group consisting of: an electric field claim 1 , a gas flow claim 1 , and a combination thereof.320-. (canceled)21. The method according to claim 1 , wherein the metal is a noble metal or a noble metal salt.22. The method according to claim 21 , wherein the noble metal is gold or silver.23. The method according to claim 1 , further comprising collecting the metal ions on a surface after the metal ions have been analyzed in the mass spectrometer.24. The method according to claim 23 , wherein a subset of the metal ions are collected on the surface.25. The method according to claim 1 , wherein the solvent is an organic solvent.26. The method according to claim 25 , wherein the organic solvent is acetonitrile. The present application claims the benefit of and priority to each of U.S. provisional application Ser. No. 61/877,528, filed Sep. 13, 2013, U.S. provisional application Ser. No. 61/880,219, filed Sep. 20, 2013, and U.S. provisional application Ser. No ...

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Номер записи: 61
23-04-2020 дата публикации

SYSTEMS AND METHODS FOR MAINTAINING CHEMISTRY IN MOLTEN SALT SYSTEMS

Номер: US20200122109A1
Автор: Goyal Puru, Hanson Michael, Kruizenga Alan, Merwin Augustus
Принадлежит: KAIROS POWER LLC

Methods and systems for removing impurities from a molten salt stream are provided. A molten salt stream is provided that comprises a mixture of compounds selected from the group consisting of LiF, BeF, and NaF, and ZrF. The molten salt stream is flowed through a loop that may contain a precipitation filter, electrochemical potential, and/or a sparger, which thereby remove impurities in the molten salt stream. Various physical methods and apparatus are used to control the ability to remove impurities from the molten salt stream based on temperature, solubility, and general chemistry control. 1. A method of removing impurities from a molten salt stream , the method comprising:a. providing a trap to allow residence time in said molten salt stream;b. said trap having packing media to remove impurities from the molten salt stream.2. The method of claim 1 , wherein the trap comprises a phase separator.3. The method of claim 2 , wherein the trap controls the removal of impurities by controlling temperature of the molten salt stream.4. The method of claim 2 , wherein the trap controls the removal of impurities through controlling chemical potential of the molten salt stream.5. The method of claim 2 , wherein the trap controls the removal of impurities through controlling the electrochemical potential of the molten salt stream.6. The method of claim 2 , wherein the phase separator comprises a vessel with a packed bed claim 2 , wherein the packed bed is comprised of a beryllium alloy.7. The method of claim 2 , wherein phase separator comprises a vessel with a packed bed claim 2 , wherein the packed bed is comprised of a lithium alloy.8. The method of claim 2 , wherein the method includes a degassing stream.9. The method of claim 1 , wherein the trap comprises a degasser.10. The method of claim 9 , wherein the trap controls the removal of impurities by controlling temperature of the molten salt stream.11. The method of claim 9 , wherein the trap controls the removal of ...

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Номер записи: 62
01-09-2022 дата публикации

APPARATUS AND METHOD FOR OPERATING AN ELECTROLYTIC CELL

Номер: US20220275529A1
Автор: Bardet Benoit, NOIZET Alain, PETITJEAN Bruno
Принадлежит:

An apparatus, also named transfer box or TB, for conveying an anode assembly outside of an electrolyte cell is described. An apparatus, also named cell preheater lifting beam or CPLB, for conveying an anode assembly or a cell pre-heater outside of an electrolyte cell is also disclosed. TB and CPLB are conjointly used for starting up the electrolytic cell or for replacing a spent anode assembly while maintaining the production of non-ferrous metal, such as aluminum or aluminium. The thermal insulation of the TB allows maintaining the anode temperature homogeneity and preventing thermal shocks when introducing the inert anodes into the hot electrolytic bath. TN and CPLB allow accurate positioning of anode assemblies or cell-preheaters over the electrolysis cell before achieving mechanical and electrical connections of the anode assembly or the cell pre-heater to the electrolysis cell. Several related methods for the operation of an electrolytic cell are also disclosed. 1. An apparatus for conveying a spent anode assembly or a cell pre-heater outside of an electrolyte cell , the cell-preheater being configured to be inserted in the electrolyte cell for pre-heating the electrolyte cell before inserting a pre-heated anode assembly in the pre-heated cell , the apparatus comprising:a supporting structure, defining an interior spacing; an insulated position wherein the spent anode assembly or the cell pre-heater is positioned in the interior spacing of the supporting structure; and', 'a loading-unloading position wherein the spent anode assembly or the cell pre-heater is outside the supporting structure for loading the spent anode assembly or the cell pre-heater to the actuator assembly or unloading the spent anode assembly or the cell pre-heater from the actuator assembly; and, 'an actuator assembly coupled with the supporting structure and configured to support the spent anode assembly or the cell pre-heater, the actuator assembly being operable to move the spent anode ...

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Номер записи: 63
19-05-2016 дата публикации

APPARATUS FOR PROTECTION OF ANODES AND CATHODES IN A SYSTEM OF ELECTROLYSIS CELLS

Номер: US20160138177A1
Автор: Barker Michael H., GRANT Duncan, NORDLUND Lauri, RANTALA Ari, SCHMACHTEL Sönke, VIRTANEN Henri K.
Принадлежит: OUTOTEC (FINLAND) OY

Provided is an electrode assembly for electrolytic processing in an electrolysis cell comprising an electrode blade comprising a metallic hanger bar portion, a first lug for supporting the metallic hanger bar portion on a first power supply bar, an insulating piece connecting the metallic hanger bar portion to the first lug. The electrode assembly also comprises an electrical switch unit controlling electrical current supply between the first lug and the metallic hanger bar based on a control signal transmitted to a terminal of the electrical switch unit, a control unit configured to transmit the control signal to the terminal of the electrical switch unit, and a power storage unit configured to supply power to the control unit, the power storage unit being charged from the first lug and the hanger bar when the electrical switch unit switches off electrical current supply between the first lug and the metallic hanger bar. 120-. (canceled)21. An electrode assembly for electrolytic processing of a metal in an electrolysis cell , the electrode assembly comprising:an electrode blade comprising a metallic hanger bar portion;a first lug for supporting the metallic hanger bar portion on a first power supply bar;a second lug for supporting the metallic hanger bar portion in a horizontal position together with the first lug;an insulating piece connecting the metallic hanger bar portion to the first lug;an electrical switch unit controlling electrical current supply between the first lug and the metallic hanger bar portion based on control signals transmitted to a terminal of the electrical switch unit;a control unit comprising a memory and at least one processor configured to transmit the control signals to the terminal of the electrical switch unit; anda power storage unit configured to supply power to the control unit, the power storage unit being charged from the first lug and the metallic hanger bar portion when the electrical switch unit switches off electrical current ...

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Номер записи: 64
24-05-2018 дата публикации

METHODS FOR SIMULTANEOUS LEACHING AND EXTRACTION OF PRECIOUS METALS

Номер: US20180142322A1
Автор: FOLEY Stephen, Moradi Loghman, Salimi Hiwa
Принадлежит: UNIVERSITY OF SASKATCHEWAN

The present applications relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance comprising gold and/or palladium such as a gold- and/or palladium-containing ore in one step using a compound of Formula I:(I). 3. The method of claim 2 , wherein only one of R claim 2 , R claim 2 , Rand Ris H.4. The method of claim 2 , wherein Rand Rtogether with the nitrogen atom to which they are attached form a heterocycloalkyl or a substituted heterocycloalkyl claim 2 , wherein the heterocycloalkyl is selected from aziridinyl claim 2 , azetidinyl claim 2 , pyrrolidinyl claim 2 , piperidinyl claim 2 , azepanyl claim 2 , azocanyl claim 2 , imidazolidinyl claim 2 , oxazolidinyl claim 2 , thiazolidinyl claim 2 , piperazinyl claim 2 , hexahydropyrimidinyl claim 2 , morpholinyl claim 2 , 1 claim 2 ,3-oxazinanyl claim 2 , thiomorpholinyl claim 2 , 1 claim 2 ,3-thiazinanyl claim 2 , 1 claim 2 ,3-diazepanyl claim 2 , 1 claim 2 ,3-oxazepanyl claim 2 , 1 claim 2 ,3-thiazepanyl claim 2 , 1 claim 2 ,4-diazepanyl claim 2 , 1 claim 2 ,4-oxazepanyl claim 2 , 1 claim 2 ,4-thiazepanyl claim 2 , 1 claim 2 ,3-diazocanyl claim 2 , 1 claim 2 ,3-oxazocanyl claim 2 , 1 claim 2 ,3-thiazocanyl claim 2 , 1 claim 2 ,4-diazocanyl claim 2 , 1 claim 2 ,4-oxazocanyl claim 2 , 1 claim 2 ,4-thiazocanyl claim 2 , 1 claim 2 ,5-diazocanyl claim 2 , 1 claim 2 ,5-oxazocanyl and 1 claim 2 ,5-thiazocanyl.5. (canceled)6. The method claim 2 , wherein Ris H and Ris Calkyl or Ccycloalkyl.7. The method of claim 1 , wherein Y is NR.8. The method of claim 7 , wherein Ris H claim 7 , Calkyl or Ccycloalkyl.10. (canceled)11. (canceled)12. The method of claim 1 , wherein the molar ratio of the compound of Formula I to the gold and/or palladium is about 3:1 to about 4:1.13. The method of claim 1 , wherein the acid is HCl having a concentration in the aqueous solution of about 1 M to ...

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Номер записи: 65
24-05-2018 дата публикации

Method and System for Precluding Air Pollution in Industrial Facilities

Номер: US20180142368A1
Автор: VIDAURRE-HEIREMANS Victor Eduardo
Принадлежит:

A holistic system for sustained capture, confinement and depuration of acid mist generated in nonferrous metal electrodeposition processes utilizing lead anodes, for precluding zero release of gaseous fluid pollutants in the atmospheric air surrounding electrodeposition processes, providing an assured solution to acid mist control and total abatement in an effective, efficient manner and sustainable in time by immediate recovery and recycling back in the source generating the contaminant effluents as there are produced, according to a “cell by cell” strategy, and directly connecting each cell to a system for depuration, recovery and recycling the contaminants gaseous fluid flow extracted from each cell reducing them to innocuous levels in the discharge to the open atmosphere; complying the condition of “100% Null escape of acid mist” from each individual cell to the working environment, simultaneously with minimum power usage, and substantial global gaseous fluid contaminant reduction, far exceeding present minimum sustainability standards, in terms of human health, energy usage and environmental protection. 1. A system for precluding air pollution in an electrodeposition tankhouse by capturing and processing byproduct gaseous fluids that emanate as a result of electrodeposition of nonferrous metals within electrolytic cells , said system comprising: an apparatus for confining a gaseous fluid as it is being originated by an electrowinning process within an electrolytic cell , wherein said gaseous fluid comprises at least an acid , fine airborne electrolyte liquid particles , contaminant gasses , and vapors of water and acid , wherein said electrolytic cell comprises a plurality of anodic and cathodic plates; an apparatus for removing said at least one acid , fine airborne electrolyte liquid particles , and vapors of water and acid from said gaseous fluid; and an apparatus for monitoring process variables in real time that allow controlling a plurality of ...

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Номер записи: 66
21-08-2014 дата публикации

EQUIPMENT AND METHOD FOR ELECTROLYTIC RECOVERY OF METAL

Номер: US20140231269A1
Автор: Nieminen Ville, Palmu Lauri, Virtanen Henri
Принадлежит: OUTOTEC OYJ

The invention concerns a system of gas ducts () for transporting gas, for example, into electrolytic equipment, in connection with which there are means () for taking at least gas into the system of gas ducts, whereby there is a suitable number of gas supply holes () in the system of gas ducts in a wall () limiting the system of gas ducts, whereby the material, such as gas, flowing in the system of gas ducts () is prevented at least in part from passing through the wall () of the system of gas ducts (). The invention also concerns equipment and a method for electrolytic recovery of metal, such as copper. 1613719861967. A system of gas ducts () for transporting gas , for example , into electrolysis equipment , in connection with which there are means () for taking at least gas to the system of gas ducts , whereby there is a suitable number of gas supply holes () in the system of gas ducts in a wall () limiting the system of gas ducts , characterized in that the material , such as gas () , flowing in the system of gas ducts () is prevented at least in part from flowing through the wall () of the system of gas ducts () , when the gas bubbles are allowed to discharge directly upwards from the gas supply holes ().267. A system of gas ducts as defined in claim 1 , characterized in that the system of gas ducts () is made of a porous material claim 1 , whereby the diameter of the supply holes () located therein is less than 3 millimetres.3611. A system of gas ducts as defined in claim 1 , characterized in that the system of gas ducts () is coated at least in part with a material () claim 1 , which is impermeable to gas.4. A system of gas ducts as defined in claim 3 , characterized in that paint claim 3 , lacquer claim 3 , glue or some other corresponding material is used as the material impermeable to gas.56. A system of gas ducts as defined in claim 1 , characterized in that the system of gas ducts () is formed of a sufficient number of interconnected pipes.66. A system of ...

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Номер записи: 67
09-06-2016 дата публикации

System For Recovering And Recycling Acid Mist Generated In Electrolytic Cells For Electrowinning Or Electrorefining Non-Ferrous

Номер: US20160158686A1
Автор: Edgardo Enrique BELTRAN NAVARRO, Victor Eduardo VIDAURRE HEIREMANS
Принадлежит: Individual

Acid mist is extracted from electrolytic cells and conveyed to a first device for trapping electrolyte droplets and condensing the hazardous contaminating sulfuric add vapors, then gaseous discharges are collected in a manifold, and the first devices are either connected directly to a second multi-chamber device for condensing the acid waste vapors that have not been trapped, which is connected to a gas extractor system which exhausts said gas either directly to the atmosphere or to a chemical treatment system for purification prior to discharge; or alternatively, the manifold discharges directly to an extractor system, which in turn discharges either directly to a centralized waste gas and vapor removal system or to the atmosphere. The recovery and recycling system further comprises a system for collecting condensates for reuse in the process and two systems for the measurement, control and regulation of acid mist extraction flows.

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Номер записи: 68
09-06-2016 дата публикации

Method for electrolytically refining lead in sulfamate bath

Номер: US20160160369A1
Автор: Hidetoshi SASAOKA, Yujiro TOKITA
Принадлежит: JX Nippon Mining and Metals Corp

In the electrolytic refining of lead in a sulfamate bath, the production of a white residue is suppressed, and a decrease in the lead concentration in the electrolytic solution is suppressed. A method for electrolytically refining lead in a sulfamate bath, comprising performing electrolytic refining at a decomposition rate of sulfamic acid controlled at 0.06%/day or less.

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Номер записи: 69
22-09-2022 дата публикации

COPPER ELECTROREFINING

Номер: US20220298661A1
Автор: Coletti Bert, De Visscher Yves, Geenen Charles, Goris Jan Dirk A., Jerroudi Rafik, Vandevelde Mark
Принадлежит: METALLO BELGIUM

A metal composition includes from 90.10% wt up to 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. The composition is suitable for being processed by a process including the 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/mof 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 stream of electrolyte over a cell wall, and a gas is bubbled through the electrolyte in between anode and cathode. The composition is even more suitable after a reduction of its oxygen content. 1. A molten liquid metal composition comprising at least 90.10% wt and at most 97% wt of copper , the balance being other elements as impurities as part of which the molten liquid metal composition comprises ,at least 0.1% wt of nickel,at least 0.0001% wt and less than 1.00% wt of iron, andat least 250 ppm wt and at most 3000 ppm wt of oxygen.2. The molten liquid metal composition according to further comprising claim 1 , as part of the impurities claim 1 , at least 0.10% wt and at most 3.00% wt of antimony claim 1 ,3. The molten liquid metal composition according to further comprising claim 1 , as part of the impurities claim 1 , at least 0.010% wt and at most 0.50% wt of bismuth.4. The molten liquid metal composition according to further comprising claim 1 , as part of the impurities claim 1 , at most 6.00% wt of tin.5. The molten liquid metal composition according to further comprising claim 1 , as part of the impurities claim 1 , at most 6.00% wt of lead.6. The molten liquid metal composition according to further comprising claim 1 , as part of the impurities claim 1 , at least 0.0001% wt and at most 0.50% wt of ...

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Номер записи: 70
23-05-2019 дата публикации

HIGH PURITY TIN AND METHOD FOR PRODUCING SAME

Номер: US20190153607A1
Автор: Imori Toru, TAKEMOTO Koichi
Принадлежит: JX Nippon Mining & Metals Corp.

Provided is high purity tin having purity of 5N (99.999% by mass), which can suppress generation of particles. According to the high purity tin, the number of particles each having a particle diameter of 0.5 μm or more is 50,000 or less per a gram. 1. High purity tin having a purity of 5N (99.999% by mass) or more , wherein the number of particles each having a particle diameter of 0.5 μm or more is 50 ,000 or less per a gram.2. The high purity tin according to claim 1 , wherein the number of particles each having a particle diameter of 0.5 μm or more is 10 claim 1 ,000 or less per a gram.3. The high purity tin according to claim 1 , wherein each of concentrations of iron claim 1 , copper claim 1 , lead and sulfur contained in the high purity tin is 0.5 ppm by mass or less.4. The high purity tin according to claim 1 , wherein a concentration of antimony is 1 ppm by mass or less.5. The high purity tin according to claim 1 , wherein a concentration of oxygen is less than 5 ppm by mass.6. A method for producing high purity tin according to claim 1 , comprising:a step (1) of providing primary refined electrodeposited tin having improved purity on a surface of a cathode by carrying out electrolytic refining in an electrolytic bath partitioned into an anode chamber and a cathode chamber by disposing a diaphragm between an anode and a cathode, said electrolytic bath containing an sulfuric acidic solution of tin sulfate as an electrolytic solution and raw material tin as said anode, said raw material tin having a lead content of 20 ppm by mass or less, an iron content of 5 ppm by mass or less, a copper content of 0.5 ppm by mass or less, an antimony content of 5 ppm by mass or less and the total content of silver, arsenic, bismuth, cadmium, copper, iron, indium, nickel, lead, antimony and zinc of 30 ppm by mass or less, while adding to at least said cathode camber a smoothing agent for reducing a surface area of electrodeposited tin, wherein said step (1) comprises ...

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Номер записи: 71
24-06-2021 дата публикации

Improvement in copper electrorefining

Номер: US20210189576A1
Автор: Bert COLETTI, Charles Geenen, Jan Dirk A. Goris, Mark Vandevelde, Rafik Jerroudi, Yves DE VISSCHER
Принадлежит: Metallo Belgium NV

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/m 2 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.

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Номер записи: 72
15-06-2017 дата публикации

METHOD FOR RECYCLING VALUABLE METALS FROM SPENT BATTERIES

Номер: US20170170532A1
Автор: Blais Jean-Francois, Coudert Lucie, Mercier Guy, TANONG Kulchaya, Tran Lan Huong
Принадлежит:

A process has been developed in order to recover and recycle the metals present in spent batteries, including alkaline spent batteries alone or mixed with other types of spent batteries. This method shows a good potential in terms of metals recoveries efficiencies and economic feasibility. Firstly, the spent batteries are crushed (optionally after having been frozen in the case of spent batteries of mixed types). Then, the undesirable parts (plastics, steel cases, papers, etc.) are removed by screening. The collected powder, containing the metals, is mixed with a solution of sulfuric acid in the presence of a reducing agent. The solid/liquid separation is carried out by filtration and the leachate is purified in order to selectively recover the metals. The purification steps consist of: a) recovering Zn by solvent extraction followed by an electrowinning process; b) simultaneously recovering Mn and Cd by solvent extraction process; c) selectively recovering Cd from the mixture solution of Cd and Mn by electrowinning process; d) precipitating Mn from a pure solution of MnSOin a carbonate form; e) removing the impurities present in the effluent by solvent extraction in order to obtain a pure NiSOsolution; f) precipitating Ni from a NiSOsolution in a carbonate form. 1. A process for recovering valuable metals from spent batteries comprising the steps of:a) crushing the spent batteries;b) separating debris as a coarse fraction and a fine fraction;c) leaching metals present in the fine fraction with strong inorganic acid and a reducing agent to produce an aqueous leachate;d) extracting Zn from the leachate by electrowinning to obtain a metallic deposit of Zn and a Zn-depleted aqueous solution; ande) extracting Mn from the Zn-depleted aqueous solution of d) by precipitation at pH of about 8-9 to obtain precipitated Mn and a Zn- and Mn-depleted aqueous solution.2. The process of claim 1 , wherein in the leaching step c) claim 1 , the strong inorganic acid is selected from ...

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Номер записи: 73
18-09-2014 дата публикации

SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELLS

Номер: US20140262808A1
Автор: DiMilia Robert A., Dynys Joseph M., LIU Xinghua, Martello Jeffrey S.
Принадлежит:

Broadly, the present disclosure relates to sidewall features (e.g. inner sidewall or hot face) of an electrolysis cell, which protect the sidewall from the electrolytic bath while the cell is in operation (e.g. producing metal in the electrolytic cell). 1. An apparatus , comprising: an anode;', 'a cathode in spaced relation from the anode;', 'a molten electrolyte bath in liquid communication with the anode and the cathode;', wherein the cell body is configured to retain the molten electrolyte bath;', 'wherein the sidewall comprises: a polarized sidewall portion, wherein the polarized sidewall portion is in liquid communication with the molten electrolyte bath., 'a cell body comprising a sidewall and a bottom,'}], 'an electrolysis cell is provided, comprising2. The apparatus of claim 1 , wherein the polarized sidewall portion is one of:an anodically polarized sidewall, a cathodically polarized sidewall, and combinations thereof.3. The apparatus of claim 2 , wherein the polarized sidewall portion comprises:a cathodically polarized sidewall, wherein the cathodically polarized sidewall is positioned below the bath-vapor interface and adjacent to the bottom of the cell body such that the cathodically polarized sidewall is in liquid communication with the bottom of the cell.4. The apparatus of claim 1 , wherein the polarized sidewall portion comprises:at least 50% of surface of the inner sidewall.5. The apparatus of claim 1 , further comprising:a non-polarized sidewall portion, wherein both the polarized sidewall portion and the non-polarized sidewall portion are adjacent to each other and in liquid communication with the molten electrolyte bath.6. The apparatus of claim 5 , wherein the non-polarized sidewall portion is positioned above the cathodically polarized sidewall and is in communication with the bath-air interface.7. The apparatus of claim 5 , wherein the non-polarized sidewall portion is selected from the group consisting of:a thermal conductor; a stable ...

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Номер записи: 74
22-06-2017 дата публикации

METHOD AND ARRANGEMENT FOR COLLECTING AND REMOVAL OF ACID MIST FROM AN ELECTROLYTIC CELL

Номер: US20170175279A1
Автор: HAUTANIEMI Timo, HIRSI Tuomas
Принадлежит:

A method and an arrangement for collecting and removal of acid mist from an electrolytic cell. The arrangement includes a cover for covering an open top of a container of the electrolytic cell so that a space is formed between a surface of electrolyte contained in the container and the cover, a decontamination system provided with an acid mist suction channel terminating in an upwards facing inlet opening in the space, and a cleaning arrangement for spraying the upwards facing inlet opening with washing fluid. The cleaning arrangement has a fluid nozzle. The fluid nozzle is in the acid mist suction channel. The fluid nozzle is arranged to spray washing fluid at least downwards into the acid mist suction channel. 1. A method for collecting and removal of acid mist from an electrolytic cell in a metal electrowinning process or in a metal electrorefining process , where an electric current is passed between a plurality of electrodes , from anodes to cathodes alternately arranged and submerged in electrolyte contained in a container having an open top , the method comprising:covering the open top of the container with a cover so that a space is formed between a surface of the electrolyte contained in the container and the cover,providing a decontamination system having an acid mist suction channel terminating in an upwards facing inlet opening in the space between the surface of the electrolyte contained in the container and the cover, and having suction means for sucking acid mist from the space between the surface of the electrolyte contained in the container and the cover,sucking acid mist from the space between the surface of the electrolyte contained in the container and the cover by means of the suction means of the decontamination system,providing a cleaning arrangement for spraying the upwards facing inlet opening of the acid mist suction channel with washing fluid to prevent the upwards facing inlet opening of the acid mist suction channel from being blocked, ...

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Номер записи: 75
28-05-2020 дата публикации

ACTINIDE AND RARE EARTH DRAWDOWN SYSTEM FOR MOLTEN SALT RECYCLE

Номер: US20200165735A1
Автор: FIGUEROA Javier, TYLKA Magdalena M., Wiedmeyer Stanley G., Williamson Mark A., Willit James L.
Принадлежит: UCHICAGO ARGONNE, LLC

A method for recycling molten salt from electrorefining processes, the method having the steps of collecting actinide metal using a first plurality of cathodes from an electrolyte bath, collecting rare earths metal using a second plurality of cathodes from the electrolyte bath, inserting the collected actinide metal and uranium into the bath, and chlorinating the inserted actinide metal and uranium. Also provided is a system for recycling molten salt, the system having a vessel adapted to receive and heat electrolyte salt, a first plurality of cathodes adapted to be removably inserted into the vessel, a second plurality of cathodes adapted to be removably inserted into the vessel, an anode positioned within the vessel so as to be coaxially aligned with the vessel, and a vehicle for inserting uranium into the salt. 1. A system for recycling molten salt , the system comprising:a) a vessel adapted to receive and heat electrolyte salt;b) a first plurality of cathodes adapted to be removably inserted into the vessel;c) a second plurality of cathodes adapted to be removably inserted into the vessel;d) an anode positioned within the vessel so as to be coaxially aligned with the vessel; ande) a vehicle for positioning elemental metal within the salt.2. The system as recited in wherein the vessel further comprises a lid with regions defining apertures to slidably receive the first plurality and second plurality of cathodes and the anode.3. The system as recited in wherein the anode comprises internal passageways to direct fluid to the bottom of the vessel.4. The system as recited in wherein the cathodes circumscribe the anode.5. The system as recited in wherein the first plurality of cathodes and the second plurality of cathodes are sequentially inserted into the salt.6. The system as recited in wherein the first plurality of cathodes is positioned within the vessel but above the salt when the second plurality is inserted in the salt.7. The system as recited in wherein the ...

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Номер записи: 76
08-07-2021 дата публикации

PREPARING FE/NI-FREE ALKALI METAL HYDROXIDE ELECTROLYTES

Номер: US20210207278A1
Автор: Najafpour Mohammad Mahdi, Salmanion Mahya
Принадлежит:

A method for preparing an Fe/Ni-free alkali metal hydroxide solution may include electrodepositing Ni ions of an alkali metal hydroxide electrolyte on surfaces of an Au anode and an Au cathode by placing the Au anode and the Au cathode within the Fe-free alkali metal hydroxide electrolyte and applying a voltage in a range of 1.75 to 2.25 between the Au anode and the Au cathode for a period in a range of 8 to 12 hours. 1. A method for preparing an Fe/Ni-free alkali metal hydroxide solution , the method comprising:{'sub': '2', 'forming a dispersion by mechanically mixing an Ni(OH)precipitate with an alkali metal hydroxide electrolyte at a stirrer rate in a range of 100 rpm to 300 rpm, the alkali metal hydroxide electrolyte comprising at least one of Lithium hydroxide (LiOH), Sodium hydroxide (NaOH), Potassium hydroxide (KOH), Rubidium hydroxide (RbOH), and Caesium hydroxide (CsOH);'}separating the dispersion into a first supernatant and a first pellet by centrifuging the dispersion, the first supernatant comprising an Fe-free alkali metal hydroxide electrolyte;electrodepositing Ni ions of the first supernatant on surfaces of an Au anode and an Au cathode by placing the Au anode and the Au cathode within the first supernatant and applying a voltage in a range of 1.75 to 2.25 between the Au anode and the Au cathode for a period in a range of 8 to 12 hours;removing the Au anode and Au cathode from the first supernatant;{'sub': '2', 'reducing Au ions within the first supernatant as Au nanoparticles by injecting Hgas into the first supernatant;'}separating Au nanoparticles from the first supernatant by centrifuging the first supernatant to obtain a second supernatant and a second pellet, the second pellet comprising the Au nanoparticles; anddecanting the second supernatant, the second supernatant comprising the Fe/Ni-free alkali metal hydroxide solution.2. A method for preparing an Fe/Ni-free alkali metal hydroxide solution , the method comprising:electrodepositing Ni ions ...

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Номер записи: 77
28-06-2018 дата публикации

ELECTRODE STRUCTURE FOR THE ELECTRODEPOSITION OF NON-FERROUS METALS

Номер: US20180179652A1
Автор: PRADO PUEO Felix
Принадлежит:

The present invention relates to an electrode structure which can detect the electric current and optionally activate alarm signals in electrolytic cells for the electrodeposition of non-ferrous metals, for example for electrowinning of metals, in particular for the electrolytic production of copper and other non-ferrous metals proceeding from ionic solutions. The present invention further relates to a data acquisition system to be used in connection with said electrode structure. 2. The anodic structure according to claim 1 , wherein each said periodic actuation cycle has a duration of 1-15000 seconds.4. The anodic structure according to claim 3 , wherein said periodic actuation cycle has a duration of 300-6000 seconds claim 3 , wherein said microcontrol unit is configured to activate said at least one electric current sensor 1-10 times during each cycle claim 3 , each activation of said at least one electric current sensor having a duration of less than 15 milliseconds.5. The anodic structure according to claim 4 , wherein said microcontrol unit is configured to activate said wireless communication means 1-3 times during each cycle.6. The anodic structure according to claim 1 , wherein said at least one electric current sensor is a Hall sensor.7. The anodic structure according to claim 1 , wherein said at least one electric current sensor is a temperature sensor.8. The anodic structure according to claim 6 , wherein said anodic hanger bar comprises a lower horizontal main portion and two horizontal upper end portions connected to opposite sides of said horizontal main portion through two slanted intermediate portions claim 6 , said at least one wireless integrated device being positioned on the top surface of either of said slanted intermediate portions.9. The anodic structure according to claim 8 , wherein said two slanted intermediate portions form an angle of 20-70 degrees with the vertical claim 8 , and wherein said Hall sensor is positioned in correspondence ...

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Номер записи: 78
09-07-2015 дата публикации

APPARATUS FOR USE IN ELECTROREFINING AND ELECTROWINNING

Номер: US20150191840A1
Автор: GRANT Duncan
Принадлежит: OUTOTEC OYJ

An apparatus for use in the electroproduction or electrorefining which includes first and second electrodes, at least one bus bar, and at least one power supply wherein a power supply is associated with an electrode and is arranged to regulate a current supply from a bus bar to the electrode. 1. An apparatus for use in the electroproduction or electrorefining , comprising:first and second electrodes;at least one bus bar; and 'wherein a power supply is associated with an electrode and is arranged to regulate a current supply from a bus bar to the electrode.', 'at least one power supply;'}2. The apparatus as claimed in claim 1 , further comprising a controller associated with each power supply to maintain the current flow to the electrode at a predetermined value.3. An apparatus as claimed in claim 2 , wherein each controller is adjacent to or part of its associated power supply.4. The apparatus as claimed in claim 1 , in which each power supply includes a current monitoring device and each associated controller controls the operation of the power supply in response to current measurements made by the current measuring device.5. The apparatus as claimed in claim 1 , wherein at least one of the power supplies is operated as a current source.6. The apparatus as claimed in claim 1 , wherein at least one of the power supplies is switched mode power converter claim 1 , wherein at least one of the power supplies includes one or more power semiconductor switches claim 1 , and the duty cycle of operation of the power supply is greater than 20 kHz.7. The apparatus as claimed in claim 1 , wherein at least one of the power supplies provides auxiliary power in addition to that provided by the bus bars.8. The apparatus as claimed in claim 1 , wherein the electrode includes a plurality of protrusions arranged to rest on the bus bars.9. The apparatus as claimed in claim 8 , wherein the at least one power supply is disposed between one or more of the plurality of protrusions and the ...

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Номер записи: 79
16-07-2015 дата публикации

APPARATUS FOR USE IN ELECTROREFINING AND ELECTROWINNING

Номер: US20150197868A1
Автор: GRANT Duncan
Принадлежит: OUTOTEC OYJ

An apparatus for electroproduction or electrorefining of material including an electrode having a first conducting layer and a second conducting layer 2. The apparatus as claimed in claim 1 , wherein the first conducting layer is bonded or glued to the electrically insulating layer and the second conducting layer is bonded or glued to the electrically insulating layer claim 1 , or the electrically insulating layer extends to cover at least part of the edges of the electrode.3. The apparatus as claimed in any claim 1 , further comprising a plurality of power supplies claim 1 , wherein one or more of the power supplies are operated as a current source claim 1 , or one or more of the power supplies comprises a switched mode power converter claim 1 , or wherein each power supply includes a current monitoring device wherein an associated controller monitors the operation of the power supply in response to current measurements made by the current measuring device claim 1 , or wherein at least some of the power supplies include a communication device for exchanging data with a computer.4. The apparatus as claimed in claim 1 , wherein power is supplied to the first conducting layer and the second conducting layer independently.5. The apparatus as claimed in claim 1 , further including at least one step down transformer to reduce a supply voltage to an intermediate voltage for input to the power supplies.6. The apparatus of claim 1 , comprising a second electrode and actuators for controlling a separation between the electrode and the second electrode as a function of at least one of:evolution of current-voltage characteristic between the electrode and the second electrode;electrode condition; andtime.7. The apparatus of claim 1 , comprising:a plurality of electrodes; andcurrent sensors associated with at least some of the electrodes, and output or data-processing circuits for outputting or processing the current measurements. This application is a divisional application of ...

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Номер записи: 80
20-06-2019 дата публикации

Systems and Methods for Controlling Electrochemical Processes

Номер: US20190186030A1
Автор: Williamson Floyd L.
Принадлежит:

A system is disclosed for controlling an electrochemical process. The system has a power source that is coupled to a power amplifier. The power amplifier is configured to provide an electromotive force (emf) signal, and a plurality of electrodes apply the emf signal to an electrochemical solution. A control element is configured to control the power amplifier such that the emf signal exhibits a predetermined frequency, amplitude, and duty cycle for reducing a thickness of the Nernst diffusion layer such that an operational parameter is set to a predetermined value. 1. A system for controlling an electrochemical process , comprising:a power source;a power amplifier coupled to the power source and configured to provide an electromotive force (emf) signal;an electrochemical solution;a plurality of electrodes positioned within the electrochemical solution for applying the emf signal to the electrochemical solution, wherein a voltage potential across the electrodes causes ions to flow in the electrochemical solution, and wherein the electrochemical solution forms a Nernst diffusion layer along a boundary while the ions are flowing in the electrochemical solution; anda control element configured to control the power amplifier such that the emf signal exhibits a predetermined frequency, amplitude, and duty cycle for reducing a thickness of the Nernst diffusion layer such that an operational parameter of the system is set to a predetermined value, the control element further configured to control the power amplifier such that the emf signal is repetitively applied to the electrochemical solution via the electrodes at least until the operational parameter is set to the predetermined value, and wherein the operational parameter is selected from at least one of the group including: a thickness of the Nernst diffusion layer, a limiting current density, a power density, an overpotential voltage, an ionic resistance, an exchange current density, a surface concentration, a surface ...

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Номер записи: 81
20-06-2019 дата публикации

METHODS OF FORMING METALS USING IONIC LIQUIDS

Номер: US20190186031A1
Автор: Baek Donna L., Fox Robert V., Lister Tedd E.
Принадлежит:

A method of forming an elemental metal (e.g., a rare-earth element) includes forming a multicomponent solution comprising an ionic liquid, a secondary component, and a metal-containing compound. The multicomponent solution is contacted with at least a first electrode and a second electrode. A current is passed between the first electrode to the second electrode through the multicomponent solution. The metal-containing compound is reduced to deposit the elemental metal therefrom on the first electrode. 1. A method of forming an elemental metal , the method comprising:forming a multicomponent solution comprising an ionic liquid, a secondary component, and a metal-containing compound;contacting the multicomponent solution with at least a first electrode and a second electrode;passing a current between the first electrode to the second electrode through the multicomponent solution; andreducing the metal-containing compound to deposit metal therefrom on the first electrode.2. The method of claim 1 , wherein the secondary component comprises a material selected from the group consisting of a gas claim 1 , a liquid claim 1 , a salt claim 1 , and a supercritical fluid.3. The method of claim 1 , wherein the secondary component comprises a second ionic liquid.4. The method of claim 1 , wherein forming a multicomponent solution comprises forming the multicomponent solution to comprise the ionic liquid claim 1 , the secondary component claim 1 , the metal-containing compound claim 1 , and an anolyte.5. The method of claim 4 , wherein the anolyte comprises a material selected from the group consisting of formic acid claim 4 , ammonia claim 4 , oxalic acid claim 4 , acetic acid claim 4 , carboxylic acids claim 4 , and phthalic acid.6. The method of claim 4 , further comprising oxidizing the anolyte at the second electrode.7. The method of claim 1 , wherein forming a multicomponent solution comprises dissolving the metal-containing compound in the ionic liquid.8. The method of ...

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Номер записи: 82
23-07-2015 дата публикации

RECOVERY OF RARE EARTH METALS

Номер: US20150203979A1
Автор: Mänsoor Barati, Seetharaman Seshadri, Seetharaman Sridhar, Teng Lidong
Принадлежит: JERNKONTORET

The invention concerns a process for recovering at least one rare earth metal (REM) from the group of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. A chloride salt melt is provided and aluminium chloride is used to chlorinate a REMcontaining resource. The REM can be recovered by electrolysis, vaporisation or hydrometallurgical methods. 1. A process for recovering at least one rare earth metal (REM) from the group of Sc , Y , La , Ce , Pr , Nd , Pm , Sm , Eu , Gd , Tb , Dy , Ho , Er , Tm , Yb , and Lu , said process including the steps of:a) providing a crucible for supporting a salt melt; 60-99 of a chloride salt composition consisting of at least two metal chlorides selected from the group consisting of chlorides of Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, and Ra;', {'sub': '3', '1- 30 of AlCland,'}, 'optionally', '≦10 of halides, additional chlorides, sulphides and/or oxides;, 'b) providing a salt melt consisting of (in weight %)c) providing at least one REM containing resource to the crucible before or after heating to form the salt melt, said REM containing resource including at least one rare earth metal from the group of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu;d) reacting the aluminium chloride as a chloride donor with at least one rare earth metal of the REM containing resource to form at least one rare earth metal chloride dissolved in the salt melt;{'sub': 3', '3', '3, 'e) maintaining the content of AlClin the salt melt by adding AlClstepwise or continuously as it is consumed or by in situ formation of AlClin the salt melt;'}f) recovering said at least one REM, preferably by electrolysing the salt melt and selectively electrodepositing at least one REM.2. A process as claimed in claim 1 , wherein the salt composition comprises at least two of the salts selected from the group: NaCl claim 1 , KCl claim 1 , LiCl claim 1 , and CaCl claim 1 , preferably at least three of the salts selected from the group: ...

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Номер записи: 83
02-10-2014 дата публикации

METHOD FOR PRODUCING METAL BY MOLTEN SALT ELECTROLYSIS AND APPARATUS USED FOR THE PRODUCTION METHOD

Номер: US20140291161A1
Автор: Awazu Tomoyuki, Majima Masatoshi
Принадлежит:

Provided is a method for obtaining a particular metal at high purity, with safety, and at low cost, from a treatment object containing two or more metal elements. The present invention provides a method for producing a metal by molten salt electrolysis, the method including a step of dissolving, in a molten salt, a metal element contained in a treatment object containing two or more metal elements; and a step of depositing or alloying a particular metal present in the molten salt, on one of a pair of electrode members disposed in the molten salt containing the dissolved metal element, by controlling a potential of the electrode members to a predetermined value. 1. A method for producing a metal by molten salt electrolysis , the method comprising:a step of dissolving, in a molten salt, a metal element contained in a treatment object containing two or more metal elements; anda step of depositing or alloying a particular metal present in the molten salt, on one of a pair of electrode members disposed in the molten salt containing the dissolved metal element, by controlling a potential of the electrode members to a predetermined value.2. The method for producing a metal by molten salt electrolysis according to claim 1 , wherein the treatment object is an ore or a crude metal ingot obtained from the ore.3. The method for producing a metal by molten salt electrolysis according to claim 1 ,wherein the method is a method for producing tungsten,a metal element contained in the treatment object is tungsten,in the step of dissolving, in a molten salt, a metal element from a treatment object, tungsten is dissolved from the treatment object, andin the step of depositing or alloying a particular metal, tungsten present in the molten salt is deposited on one of a pair of electrode members disposed in the molten salt containing dissolved tungsten, by controlling a potential of the electrode members to a predetermined value.4. The method for producing a metal by molten salt ...

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Номер записи: 84
30-07-2015 дата публикации

ELECTRIC CURRENT SENSING AND MANAGEMENT SYSTEM FOR ELECTROLYTIC PLANTS

Номер: US20150211136A1
Автор: Boon Chris, Fraser Rob, Garces Baron Jorge, Gill Gerald, Johnston Noel, Johnston Tim, Nolet Sebastian, Yesberg John
Принадлежит:

The present invention relates to an electric current management (ECM) system and method comprising at least one electrolytic cell having at least two electrodes in contact with electrolyte media; a plurality of sensor means for measuring the current passing through one or more electrodes, said sensor means being located inside at least one ECM bar installed in one or more operating electrolytic cells; a support means for supporting at least one ECM bar in each cell; wherein the support means is adapted to avoid disruption to normal electrode movements and damage to the ECM bar. The present invention introduces improvements for minimizing the effects that several types of variables have on current measurement, such as magnetic field interference, cell geometry and contact configuration, in order to provide a reliable approximation of the current passing through each electrode. The present invention can be applied to real time monitoring of each cathode, or anode, constituting a metal electrowinning or electrorefining cell or other electrolytic cell. 1. An electric current management (ECM) system for improving the operation within electrolytic plants , comprising:at least one electrolytic cell having at least two electrodes within an electrolyte medium;a plurality of sensor means for measuring the current passing through one or more electrodes, wherein said sensor means are located inside at least one electric current management bar;one or more ECM bars installed in one or multiple operating electrolytic cells,support means for supporting the ECM bar or bars for each cell,a protection means for the ECM bar.2. Electric current management system according to claim 1 , wherein the protection means comprises a deflector installed above the ECM bar.3. (canceled)4. (canceled)5. (canceled)6. Electric current management system according to claim 1 , wherein the support means and the protection means are retrofitted to an existing cell or wherein the support means and ...

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Номер записи: 85
19-07-2018 дата публикации

ELECTROLYTIC TANK AND ELECTROLYTIC METHOD FOR HIGH-EFFICIENCY DRY REPROCESSING

Номер: US20180202057A1
Автор: Sumita Osao, Ueno Isao, YOKOMINE Takehiko
Принадлежит:

A molten salt electrolysis tank, comprises: an anode feeder which is equipped with a mechanism for recovering deteriorated contact resistance that takes place between the metal fuel rod and the anode in the course of the anodic electrolysis; a cathode feeder which is controlled so as to have a potential in a range that causes U and/or Pu ions to be reduced to metal; a heating mechanism for locally heating the metal fuel rod and/or an excitation mechanism for bringing the metal fuel rod into a locally excited state; and a solenoid coil or a permanent magnet that is disposed between the anode feeder and the cathode feeder so as to improve separation efficiency of U and/or Pu ions by applying a combination of an electric field and a magnetic field. 1. A molten salt electrolysis tank in which electrolytic refining is performed by dissolving a spent metal fuel pin through anodic electrolysis in a crucible filled with a molten salt to cause U and/or Pu to be reduced and precipitated once again on a surface of a cathode , the spent metal fuel pin containing elements including zirconium (Zr) and uranium (U) , U and plutonium (Pu) , or Zr and U and Pu , the electrolytic tank comprising:an anode feeder that is provided with a mechanism for recovering from deterioration of contact resistance between the metal fuel pin and the anode in a course of the anodic electrolysis;a cathode feeder that is connected to the cathode and controlled at a potential in a range that causes U and/or Pu ions to be reduced to metal;a heating mechanism for locally heating the metal fuel pin and/or an excitation mechanism for bringing the metal fuel pin to a locally excited state; anda solenoid coil or a permanent magnet that is disposed between the anode feeder and the cathode feeder to improve a separation efficiency of the U and/or Pu ions by applying a combination of an electric field and a magnetic field.2. The electrolytic tank according to claim 1 , further comprising a mechanism in which a ...

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Номер записи: 86
19-07-2018 дата публикации

TITANIUM MASTER ALLOY FOR TITANIUM-ALUMINUM BASED ALLOYS

Номер: US20180202058A1
Автор: COX JAMES R., DEALWIS CHANAKA L., KLUCK Juliane B., KOHLER BENJAMIN A., LEWIS MICHAEL G.
Принадлежит:

A process is disclosed for the electro-refinement of titanium aluminides to produce titanium-aluminum master alloys which process is effective even in the presence of substantial amounts of aluminum and in the presence of ten (10) or more weight percent oxygen in the material(s) to be refined. The process is likewise effective without the addition of titanium chlorides or other forms of soluble titanium to the electrolyte bath comprising halide salts of alkali metals or alkali-earth metals or a combination thereof. 1. A process for electro-refining titanium-aluminides to produce titanium master alloys , comprising:a. placing titanium-aluminide comprising more than ten weight percent aluminum, and at least ten weight percent oxygen, into a reaction vessel, the reaction vessel configured with an anode, a cathode, and an electrolyte, the electrolyte including halide salts of alkali metals or alkali-earth metals or a combination thereof;b. heating the electrolyte to a temperature of 500° C.-900° C. sufficient to create a molten electrolyte mixture;c. directing an electrical current from the anode through the molten electrolyte mixture to the cathode; andd. dissolving the titanium-aluminide from the anode to deposit a titanium-aluminum master alloy at the cathode.2. The process of wherein the anode includes a non-consumable mesh container in which the titanium aluminide is placed claim 1 , the titanium aluminide being consumable during the refining process.3. The process of wherein the titanium-aluminide comprises 10%-25% aluminum and at least 10% oxygen by weight.4. The process of wherein the titanium-aluminide comprises 15%-25% aluminum and at least 10% oxygen by weight.5. The process of wherein the titanium-aluminide comprises 20%-25% aluminum and at least 10% oxygen by weight.6. The process of wherein the titanium aluminum master alloy comprises about 99.0% titanium and about 1.0% aluminum by weight.7. The process of wherein the titanium aluminum master alloy ...

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Номер записи: 87
06-08-2015 дата публикации

PROCESS FOR TREATING MAGNESIUM-BEARING ORES

Номер: US20150218720A1
Автор: FOURNIER Joël, Picard François
Принадлежит:

It is described a process for extracting magnesium from magnesium-bearing materials comprising the steps of leaching the magnesium-bearing material with HCl as to obtain a leachate comprising the magnesium in solution and a solid form; purify said leachate to produce magnesium chloride and electrolysing the magnesium chloride producing magnesium metal. 1. A process for extracting magnesium metal from a magnesium-bearing material , said process comprising:a. leaching the magnesium-bearing material with HCl as to obtain a leachate containing magnesium chloride; andb. electrolyzing the magnesium chloride for extracting magnesium metal.2. The process of claim 1 , wherein the step of electrolyzing the magnesium chloride comprises using an electrolysis cell having a cathode and an anode wherein a source of hydrogen gas is delivered to the anode.3. The process of claim 2 , further comprising the step of dehydrating magnesium chloride contained in the leachate before the step of electrolyzing the leachate containing magnesium chloride to obtain magnesium metal.4. The process of claim 3 , wherein a two step fluidized bed is used for dehydrating the magnesium chloride.5. The process of claim 4 , further comprising a drying step in a fluidized bed dryer followed by gaseous HCl drying to extract anhydrous magnesium chloride.6. The process of claim 5 , wherein the dehydrated magnesium chloride is further dissolved in molten salt electrolyte.7. The process of claim 1 , wherein dry hydrochloric acid is added to proceed with the dehydration step.8. The process of claim 1 , further comprising recycling said gaseous HCl by contacting it with water so as to obtain a composition having a concentration of about 25 to about 45 weight % and using said composition for leaching.9. The process of claim 8 , wherein said magnesium-bearing material is leached with HCl having a concentration of about 20 to about 45 weight % at a temperature of about 60 to about 125° C.10. (canceled)11. The ...

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Номер записи: 88
06-08-2015 дата публикации

MAGNETIC SHIELDING FOR MEASURING A PLURALITY OF INPUT AND/OR OUTPUT CURRENTS TO AN ELECTROLYTIC CELL

Номер: US20150218722A1
Автор: Garces Baron Jorge
Принадлежит:

The present invention relates to a system and method for monitoring, in real time, the electric current that passes through each one of a plurality of single cathodes or anodes forming an electrolytic cell. The system comprises a plurality of sensor means including Hall Effect sensors. The sensor means are arranged for current measurement and thermal drift correction. Such sensors are located in a sensor bar which includes a protecting shield which provides magnetic shielding and also prevents corrosion. The present invention enables a more accurate measurement of the current of each electric unit within the electrolytic cell (cathode or anode) by using a ferromagnetic barrier acting as a magnetic shield in order to reduce the effects of magnetic fields adjacent to the target one and by correcting the measurement based on heat factors that may alter the measurement. 1. A monitoring system for monitoring the electric current circulating through each one of a plurality of single electric units constituting an electrolytic cell; the system comprising current sensors , processing units and built-in data transport means to provide a reliable and meaningful measurement of the current circulating through each one of the electrodes , whereina. such current sensors are located by a magnetic shielding device covering it of the magnetic field generated by adjacent electrode current circulation; andb. such processing units comprise means for correcting the measurement of the current circulating through each one of the electrodes based on the effects external variables have on magnetic field behaviour.2. Monitoring system according to claim 1 , wherein the magnetic shielding device blocks specific magnetic fields generated by adjacent electrodes claim 1 , allowing “only” certain magnetic field sources to be detected by current sensors.3. (canceled)4. Monitoring system according to claim 1 , wherein the shielding device comprises a coating or otherwise shielding over the largest ...

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Номер записи: 89
27-07-2017 дата публикации

Cell for metal electrowinning

Номер: US20170211195A1
Автор: Alessandro FIORUCCI, Giuseppe Faita, Luciano Iacopetti
Принадлежит: Industrie De Nora Spa

The present invention relates to an electrolyser for electrowinning of non-ferrous metals comprising a plurality of intercalated elementary cells, wherein each elementary cell is equipped with a device suitable for the detection of anomalies in the distribution of electric current to the respective anode.

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Номер записи: 90
12-08-2021 дата публикации

METHOD AND APPARATUS FOR ELECTROLYTIC REDUCTION OF FEEDSTOCK ELEMENTS, MADE FROM FEEDSTOCK, IN A MELT

Номер: US20210246564A1
Автор: Brodskyy Andriy, Chukhmanov Oleksandr, Gonchar Andrii, Romanov Roman, Troshchylo Viktor
Принадлежит:

The present invention pertains to a method for electrolytic reduction of feedstock elements, made from feedstock, in a melt. In addition, the present invention relates to an apparatus for electrolytic reduction of feedstock elements, made from feedstock, and can be used for the reduction of oxides of metals belonging to Groups 3-14 of the Periodic Table. The method is implemented using the apparatus that, according to the invention, comprises an electrolyzer bath; an electrolytic cell; an electrolyzer bath insert plate; a cover with evolved gas outlets. Moreover, the electrolytic cell contains at least one cathode chamber and two anode plates, which are vertically arranged relative to each other, at least one current source, independently connected to the cathode chamber and one or two anode plates, and a device for horizontal reciprocating movement of the said electrolytic cell, which is found outside of the electrolyzer cover. 1. A method for electrolytic reduction of feedstock elements made from feedstock in a melt by electrolysis in at least one electrolytic cell containing the said melt , at least one cathode chamber and two anode plates that are vertically arranged relative to each other , providing:an ordered arrangement of feedstock elements;constant current supply to each of the orderly arranged feedstock elements during the reduction process using at least one current source, independently connected to the cathode chamber and to one or two anode plates;feed of the melt into the space between the cathode chamber and the anode plates and flow of the melt through the pores of the feedstock elements;supply of fresh portions of the active ingredient;removal of gases evolved at the anode plate without their contact with the cathode chamber and the feedstock elements placed in it;main and additional heating of the indicated electrolytic cell;horizontal reciprocating movement of the electrolytic cell;simultaneous supply of fresh portions of the reduced active ...

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Номер записи: 91
23-10-2014 дата публикации

ELECTRORECOVERY OF GOLD AND SILVER FROM THIOSULPHATE SOLUTIONS

Номер: US20140311896A1
Автор: Alonso Gómez Alejandro Rafael, Benavides Pérez Ricardo, Lapidus Lavine Gretchen Terri, Lara Valenzuela Carlos
Принадлежит:

The present invention is related to the mining industry and treatment of mineral and materials that contain gold and silver. Specifically, it is related to a process to recover gold and silver, from copper thiosulfate solutions with a autogenerated electrolysis process. The advantages of the present invention, relative to those of the state of the technique, reside in the increased velocity compared with cementation using copper, without employing electric current. Our process is characterized by operating in an electrochemical autogeneration cell, in which the anode and cathode are connected in short circuit and the anodic and cathodic compartments are separated by an ion exchange membrane. Additionally, using a copper anode and the stripped solution as the anolyte, the levels of soluble copper are maintained stable, conserving the leaching power of the thiosulfate solutions, whereby it is possible to recycle them back to the leaching stage. 13.-. (canceled)4. An autogenerated electrolysis cell for the electrorecovery of silver from thiosulfate leaching solutions comprising a cathodic and an anodic compartment separated by a ion exchange membrane , a copper anode and a titanium cathode , connected in short circuit , a catholyte consistent in a pregnant leaching solution and an anolyte , stripped of its gold and silver in the cathodic compartment.5. A silver electrorecovery process from thiosulfate leaching solutions , in an autogenerated electrolysis cell , consisting of the following: in the first stage , feed the cathodic compartment with a solution proceeding from the leaching step , feed to the anodic compartment a synthetic solution similar to the catholyte , but without dissolved silver , maintain the operation of the electrolysis cell during a specified time , mechanically recover the silver deposit by being performed in an autogenerated electrolysis cell as was stated in the previous claim; the predetermined time that the cell operates is that which permits ...

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Номер записи: 92
19-08-2021 дата публикации

METHOD FOR PRODUCING MAGNESIUM AND CHLORINE AND ELECTROLYTIC CELL FOR IMPLEMENTING SAME

Номер: US20210254228A1
Автор: KHARIN Evgeniy Alekseevich, LOSHKAREV Sergey Alexandrovich
Принадлежит:

The invention relates to producing magnesium and chlorine from a solution of magnesium chloride-containing salts, using an electrolytic cell. A diaphragmless electrolytic cell includes: an electrolysis chamber with alternating anodes and cathodes; and a magnesium separation cell separated from the electrolysis chamber by a partition having upper V-shaped circulation channels and lower circulation channels. Electrolysis is carried out at 6-25 gas saturation of the electrolyte with chlorine bubbles in an interelectrode gap. The flow rate of the electrolyte in the upper circulation channels is 20-60. The ratio of current strength to electrolyte mass is 8-10. The ratio of the width of the electrolysis chamber to the width of the magnesium separation cell is 1.6-2.7. Additional channels are mounted in the partition, between the upper and lower circulation channels, said additional channels having a flow passage area of 0.016-0.048 of the area of the upper V-shaped channels. 2. A diaphragm-less electrolytic cell for performing the method according to claim 1 , wherein the electrolytic cell comprises an electrolysis chamber having alternating anodes and cathodes claim 1 , a magnesium separation cell separated from the electrolysis chamber by a partition with upper V-shaped and lower circulation channels claim 1 , wherein a ratio of widths of the electrolysis chamber and the magnesium separation cell is 1.6÷2.7 claim 1 , additional channels are mounted in the partition between the upper V-shaped and lower channels claim 1 , the additional channels have a flow passage area equal to 0.016÷0.048 of an area of the upper V-shaped channels claim 1 , and the additional channels in the partition are made of a fusion cast crystalline mica material claim 1 , namely fluorophlogopite. The invention relates to the production of magnesium and chlorine from a magnesium chloride-containing salt melt by means of electrolysis.The prior art discloses a method for the production of magnesium ...

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Номер записи: 93
16-08-2018 дата публикации

COMPOSITE NANOPARTICLES AND METHODS OF PREPARATION THEREOF

Номер: US20180230607A1
Автор: Johnson Francis, Kandapallil Binil Itty Ipe, Krishnan Lakshmi
Принадлежит: GENERAL ELECTRIC COMPANY

The present invention is directed to composite nanoparticles comprising a metal, a rare earth element, and, optionally, a complexing ligand. The invention is also directed to composite nanoparticles having a core-shell structure and to processes for preparation of composite nanoparticles of the invention. 2. The composite nanoparticle of claim 1 , wherein the metal is a transition metal or a post-transition metal.3. The composite nanoparticle of claim 1 , wherein the metal is selected from the group consisting of iron claim 1 , cobalt claim 1 , nickel claim 1 , manganese claim 1 , platinum claim 1 , aluminum claim 1 , copper claim 1 , zirconium claim 1 , and chromium.4. The composite nanoparticle of claim 1 , wherein the rare earth element is selected from the group consisting of samarium claim 1 , praseodymium claim 1 , neodymium claim 1 , gadolinium claim 1 , yttrium claim 1 , dysprosium claim 1 , and terbium.5. The composite nanoparticle of claim 1 , wherein the metal is cobalt and the rare earth element is samarium.6. The composite nanoparticle of claim 1 , wherein the rare earth to the metal element stoichiometric ratio in the composite nanoparticle is selected from the group consisting of 1:1 claim 1 , 1:3 claim 1 , 1:5 claim 1 , 1:7 claim 1 , 1:13 claim 1 , 2:7 claim 1 , 2:17 claim 1 , and 5:19.7. The composite nanoparticle of claim 1 , wherein the complexing ligand is selected from the group consisting of 2-[2-(dimethylamino)ethoxy]ethanol claim 1 , 2-[2-(diethylamino)ethoxy]ethanol claim 1 , 2-{[2-(dimethylamino)ethyl]methylamino}ethanol claim 1 , and 4-(dimethylamino)-1-butanol.8. The composite nanoparticle of having a mean diameter size from about 2 nm to about 500 nm.9. The composite nanoparticle of having an aspect ratio from 1 to 1000.10. A composite nanoparticle comprising a core nanoparticle and a shell layer substantially encapsulating the core nanoparticle;the core nanoparticle consisting essentially of a metal or a rare earth element;the shell ...

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Номер записи: 94
16-08-2018 дата публикации

Apparatus for recovery of material generated during electrochemical material removal in acidic electrolytes

Номер: US20180230621A1
Автор: Brian T. Skinn, E. Jennings Taylor, Eric Lee Kathe, Maria E. Inman, Savidra C. Lucatero, Stephen T. Snyder, Timothy D. Hall
Принадлежит: Faraday Technology Inc

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.

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Номер записи: 95
24-08-2017 дата публикации

METHOD FOR PREPARING TITANIUM BY USING ELECTROWINNING

Номер: US20170241029A1
Автор: Choi Ho-Gil, PARK Jong-ha, YI Kyung-Woo
Принадлежит:

The present disclosure relates to a method for preparing titanium by using electrowinning and, more specifically, to a method for preparing titanium by using electrowinning, comprising the steps of: preparing a mixture by mixing a solid electrolyte, which contains an oxide of a Group 1 element and boron oxide, with titanium dioxide; and forming a molten oxide from the mixture by putting the mixture in an electrowinning apparatus comprising an anode and an insoluble cathode and heating the same, and then forming titanium on the cathode by applying voltage to the anode and the cathode. 1. A method for preparing titanium by using electrowinning , comprising the steps of: preparing a mixture by mixing a solid electrolyte , which contains an oxide of a Group 1 element and boron oxide , with titanium dioxide; andforming a molten oxide from the mixture by putting the mixture in an electrowinning apparatus comprising an anode and an insoluble cathode and heating the same, and then forming titanium on the cathode by applying voltage to the anode and the cathode.2. The method of claim 1 , wherein the oxide of a Group 1 element is one selected from a group consisting of NaO claim 1 , NaO claim 1 , KO and LiO.3. The method of claim 1 , wherein the boron oxide is BO.4. The method of claim 1 , wherein the mixture comprises 20 to 45 weight % of the oxide of a Group 1 element claim 1 , 50 to 75 weight % of the boron oxide claim 1 , and 5 to 30 weight % of the titanium dioxide.5. The method of claim 1 , wherein the insoluble cathode is one selected from a group consisting of carbon claim 1 , platinum claim 1 , tantalum claim 1 , and tungsten.6. The method of claim 1 , wherein the heating is performed at a temperature of 700 to 1100° C.7. The method of claim 1 , wherein the voltage difference between the anode and the cathode is 1.2 to 5.0V.8. The method of claim 1 , further comprising the step of recovering the titanium formed on the cathode.9. The method of claim 8 , wherein the ...

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Номер записи: 96
09-09-2021 дата публикации

NEW ELECTRO-CHEMICAL PROCESS BASED ON A DIMENSIONLESS FACTOR

Номер: US20210277530A1
Автор: Alejo Ivan, GALLEGOS RIEDEMANN
Принадлежит:

The invention relates to a new way of reducing dissolved metals, in particular Cuto Cu, in which the effect of the diffusion-limiting layer is regulated, optimising the variables which determine the mobilisation of the metal ion (Cu+) towards the cathode and the thermodynamic stability of the reduction reaction of Cu+to Cu(or metal of interest) on the cathodic surface. The process is carried out by controlling a dimensionless ratio (referred to as t) or the cathodic polarisation, within certain predefined margins, dynamically adjusting concentrations, flows and/or electrical currents to maintain the predefined operating conditions at an optimum level. 1. A process of electrochemical reduction of Cuand other metals , such as Ni , Ag , As , and Co , which controls migratory , diffusive and convective variables , allowing the extraction of Cufrom dilute solutions and in the presence of other ions , CHARACTERIZED because it operates maintaining the cathode potential Ec or the recovery within a predefined range. To prevent the Ec from exceeding the limits of a certain range , the flow of cupric ions should be increased or decreased , and the density of the current fed should be decreased or increased. To prevent the from exceeding the limits of a certain range , the flow of cupric ions should increased or decreased , and the density of the current fed should be decreased or increased.2. An electrolytic process according to claim 1 , CHARACTERIZED because depending on the operational range of Ec or that is selected claim 1 , it can be used in the extraction of high purity Cu claim 1 , Cuto refining claim 1 , As and Cu by means of the formation of cupro-arsenicals claim 1 , or extracting As by the formation of Arsine.3. A process according to claim 1 , CHARACTERIZED in that it is equipped with Ec sensor (s) claim 1 , sensors of the flow fed to the cells claim 1 , and equipment that allows the feeding flows to the cells to be varied claim 1 , based on the Ec readings. The ...

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Номер записи: 97
09-09-2021 дата публикации

ELECTROLYTIC CELL ASSEMBLIES AND METHODS FOR PERIODIC VERTICAL DISPLACEMENT

Номер: US20210277532A1
Автор: Dufresne Robert
Принадлежит:

An electrolytic cell assembly for hydrometallurgical refining of metal and related method for lifting thereof. The cell assembly comprises a rectangular base for contacting a floor; four walls extending upward from the rectangular base and defining an electrolysis cavity for receiving electrolyte and electrodes; anchor apertures provided through the base and/or the walls for providing anchor points for lifting the electrolytic cell assembly off of the floor; and plugs and/or protective layer for plugging and/or covering the anchor apertures to seal the electrolysis cavity during hydrometallurgical refining. 1. An electrolytic cell assembly for hydrometallurgical refining of metal , comprising: a rectangular base for contacting a floor, and', 'four walls extending upward from the rectangular base and defining an electrolysis cavity for receiving electrolyte and electrodes; and, 'an electrolytic cell comprisingat least two anchor assemblies for lifting the electrolytic cell assembly off of the floor, each anchor assembly comprising an anchor aperture located in the base and/or the walls for providing anchor points.2. (canceled)3. (canceled)4. The electrolytic cell assembly of claim 1 , wherein each anchor assembly further comprises a protective layer for covering at least the anchor aperture and sealing the electrolysis cavity during hydrometallurgical refining.5. (canceled)6. (canceled)7. (canceled)8. The electrolytic cell assembly of claim 1 , wherein each anchor assembly further comprises a plug for plugging the anchor aperture and sealing the electrolysis cavity during hydrometallurgical refining.9. The electrolytic cell assembly of claim 1 , wherein the anchor aperture comprises:a central opening used to inert lifting elements; anda reinforcement structure defining the central opening.10. (canceled)11. (canceled)12. (canceled)13. The electrolytic cell assembly of claim 1 , wherein the plug has a body portion with an outer surface that contacts the corresponding ...

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Номер записи: 98
30-08-2018 дата публикации

MONITORING CONDITION OF ELECTROCHEMICAL CELLS

Номер: US20180245226A1
Автор: GILLIAM RYAN J.
Принадлежит:

Disclosed herein are methods, systems, and computer programs that relate to monitoring condition of one or more electrochemical cells or a group of the electrochemical cells in one or more electrolyzers. 1. A method for monitoring condition of one or more electrochemical cells in an electrolyzer , the method comprising:characterizing a reference voltage range for one or more electrochemical cells in an electrolyzer during operation, wherein the one or more electrochemical cells comprise an anode in contact with an anolyte comprising metal ions, and wherein the reference voltage range is dynamic dependent on factors comprising current density and concentration of the metal ions in the anolyte of the one or more electrochemical cells;acquiring a voltage of the one or more electrochemical cells during the operation;comparing the acquired voltage with the reference voltage range based on the factors; andgenerating an alarm trigger when the acquired voltage deviates from the reference voltage range, thereby monitoring the condition of the one or more electrochemical cells in the electrolyzer.2. The method of claim 1 , further comprising determining the concentration of the metal ions in the anolyte of the one or more electrochemical cells and based on the determination claim 1 , characterizing the reference voltage range for the one or more electrochemical cells.3. The method of claim 2 , comprising determining the concentration of the metal ions in the feed anolyte and/or exit anolyte from the one or more of the electrochemical cells in the electrolyzer.4. The method of claim 1 , wherein the anolyte further comprises salt ions and the factors further comprise concentration of the salt ions in the anolyte during the operation of the one or more electrochemical cells.5. The method of claim 4 , wherein the salt ions are alkali metal salt ions or alkaline earth metal salt ions.6. The method of claim 1 , wherein the concentration of the metal ions in the anolyte comprises ...

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Номер записи: 99
31-08-2017 дата публикации

Process and apparatus for metal refining

Номер: US20170247805A1
Автор: Dirkjan KOOIJMAN, Silvan Johan Thus
Принадлежит: ELEMETAL HOLDING BV

The invention is directed to a process and apparatus for metal refining, in particular for refining a mixture of conductive particles, such as heavy non-ferrous particles. In accordance with the invention a feed containing a mixture of conductive particles is fed to a dissolution unit, wherein the less noble metal is separated from a metal of interest in the presence of one or more acids or complexing agents, thus producing a stream having a concentrated less noble metal and producing a conductive stream containing a metal of interest. The conductive stream is then fed to a refining unit, wherein the conductive stream is separated in a stream of concentrated metal(s) of interest and a stream of concentrated conductive particles.

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Номер записи: 100