WO2015010220A2 - Dispositif de rigidification d'électrodes et système de rigidification utilisant ce dispositif - Google Patents

Dispositif de rigidification d'électrodes et système de rigidification utilisant ce dispositif Download PDF

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Publication number
WO2015010220A2
WO2015010220A2 PCT/CL2014/000030 CL2014000030W WO2015010220A2 WO 2015010220 A2 WO2015010220 A2 WO 2015010220A2 CL 2014000030 W CL2014000030 W CL 2014000030W WO 2015010220 A2 WO2015010220 A2 WO 2015010220A2
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WO
WIPO (PCT)
Prior art keywords
electrode
stiffening
anodes
anode
extension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CL2014/000030
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English (en)
Spanish (es)
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WO2015010220A3 (fr
Inventor
Percy Danilo YAÑEZ CASTAÑEDA
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to US14/906,545 priority Critical patent/US20160160375A1/en
Publication of WO2015010220A2 publication Critical patent/WO2015010220A2/fr
Publication of WO2015010220A3 publication Critical patent/WO2015010220A3/fr
Anticipated expiration legal-status Critical
Priority to US16/102,718 priority patent/US20190078223A1/en
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/008—Current shielding devices
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/10—Electrodes, e.g. composition, counter electrode

Definitions

  • the present application refers to a straightening, separating and stiffening system of anodes, which includes at least one stiffening device, preferably plastic, which improves the quality and increases the production of the metal cathodes obtained in electrolytic processes, avoiding short circuits that affect the nodulation formation on the cathode surface.
  • said system and device that is installed along the sides of each anode, increases the efficiency of electric current and prolongs the time of use of the anodes, solving part of the main problems existing in electrolytic processes.
  • anode plates initially flat, straight or vertical, are used.
  • These anodes mainly made of lead or any other suitable material for the process, suffer degradation due to the corrosive action of the hot acid electrolyte in which they are submerged.
  • the anodes oxidize, producing a thinning of the anode due to the gradual release of the oxide that forms on its surface.
  • the properties of the anodic plates change, including their mechanical properties, being susceptible to deformation, for example, bending concavely, losing their original verticality.
  • the deformation of the anode results in inefficient operation thereof, since a deformed anode tends to reduce its separation, or simply to join, with respect to one or both adjacent cathodes. Said reduction of separation or contact facilitates the production of short circuits in the cathodes to be harvested, which give rise to nodules, malformations or beans, generating losses in the production of cathodes by nodulation and losses in the efficiency of the current.
  • the anodes that are currently used in the electro obtaining or electro refining processes with the use and corrosion by the hot acid electrolyte corrode, thin and deform, losing their verticality and, as a consequence, generating micro short circuits due to the approach of these with one or both adjacent cathodes.
  • the main problem that solves the present invention is to straighten and stiffen the anodes, keeping them vertical, avoiding buckling and, in addition, managing to maintain the greatest distance between anode and cathode all the way in an equidistant way, reducing the percentage of nodulation rejections at 1 and 2% and, therefore, improving the quality and production of cathodes.
  • the devices known in the art do not allow to solve in an integral way the problems derived from the deformation of the anodic plates, that is, to maintain rigid and completely vertical anodes at the same time that there is an equidistant separation of these with the cathodes, avoiding short circuits and nodulation formation that affect the quality and production of electrodepositive electrodes.
  • the present invention proposes a system and a device that straightens and stiffens the anode during its use, while maintaining its separation from adjacent cathodes, avoiding the short circuits causing nodulations.
  • This system consists of the implementation of at least one stiffening device, which consists of a rigid monolithic body, preferably elongated in plastic, which is installed along a large part of the peripheral edge of an electrode, preferably the side walls of the anodic plates, where said device has a rectangular internal section that establishes a fit adjusted to the thickness of the anodic plate in most of its length, at least over 50% of its major side, allowing straightening and stiffening said plate.
  • the outer shape of the device of the invention which mainly consists of two inclined planes that form a "V"
  • stiffening the anode allows to efficiently distance the anode from the cathode, avoiding with micro short circuits integrally, that is, separating and stiffening the anodic plates at the same time.
  • the device has other characteristics that favor electrodeposition, as well as facilitate the operation of the electrodes during use.
  • the stiffening system and device of the invention allows to solve the problems of the prior art thanks to the reduction of the micro-short circuits that generate the nodulations, affecting an increase in the efficiency of the electrolytic cells of at least one 2%, which then causes more high quality cathodes to be produced, without nodulations.
  • the most important advantage of the invention in comparison with the state of the art, is that the characteristics of the system and device cause an increase in the production and quality of cathodes harvested by 3 to 5%, as well as an increase in efficiency current of at least 2%, added to the prolongation of the life of the anodes by at least 20%, factors of high incidence in electrodeposition.
  • Fig. 1 shows an isometric view of a preferred embodiment of the stiffening system of the invention.
  • Figures 2a, 2b and 2c show a preferred embodiment of the stiffener device deploying in a plane the rear, front and side projections, respectively.
  • Figures 3 and 3b show an isometric view of the cross section of the stiffening device according to a preferred embodiment of the invention, together with a sectional view of the cross section of said device, respectively.
  • Fig. 4 shows an isometric view of a set of anodes of a cell having the stiffener system of the invention installed according to a preferred embodiment.
  • Fig. 5 shows a diagram of a sectional view of how the stiffening device acts with respect to the spacing between anodes and cathodes.
  • Fig. 6 shows an isometric view of the inclined planes present at the ends of the stiffening device according to an embodiment thereof.
  • Figures 7a and 7b show an isometric view of an embodiment of the stiffening device of the invention, together with a sectional view of the cross section of said device, respectively.
  • Figures 8a and 8b show a plan view and its lateral projection, respectively, of an embodiment of the invention where the stiffening device incorporates anode spacer elements.
  • Figures 9a and 9b show an isometric view and its subsequent projection, respectively, of a stiffener system with the device of Figure 8 in a set of anodes.
  • Fig. 10 shows an isometric view of an embodiment of the stiffener system of the invention that includes at least one central ring-type separator device next to the stiffener.
  • Figures l ia, llb and 11c show rear, front and side views, respectively, of one embodiment of the stiffening device of the invention.
  • Figures 12a and 12b show an isometric view of an embodiment of the stiffening device of the invention, together with its cross-section, respectively, which includes reinforcement in the area of fit with the anode.
  • the present invention consists of a stiffener device and its incorporation in a stiffener system that allows stiffening and straightening an anode plate throughout its length, while maintaining an equidistant separation along the entire anode with respect to adjacent cathodes.
  • Said system and device make it possible to reduce the formation of nodulations in electrodeposited cathodes by preventing the formation of short circuits caused by the reduction of separation between anode and cathode, in addition to increasing the life of the anodes by preventing their deformation due to constant degradation. that these suffer during the operation in the electrolytic medium.
  • Figure 1 shows an embodiment of the stiffener system incorporating stiffener devices 2, in particular two, installed on the sides 5 of an anodic plate 1, along most of the extension of said sides 5, at least covering 50 % of the extension of said side 5 or preferably between 50 and 100% of said sides, where in one embodiment the entire extension of the major side of the electrode is covered.
  • said stiffening devices 2 include inclined planes 3, as detailed in Figure 6, located at least one of the ends of the stiffening device 2, on the walls or lateral planes 4 of said device. Said inclined planes 3 facilitate the operation with the electrodes by allowing their proper location thanks to the sliding that occurs between the edges of an electrode and said inclined planes 3 during the extraction or entry into the electrolytic cell.
  • the inclined planes 3 In addition to facilitating the correct location of the electrodes in the cell, they prevent them from coming into contact during said operations and, therefore, from being damaged by said contact.
  • the stiffening devices 2 have inclined planes 3 both on both sides of the upper end and on both sides of the lower end of said device, as shown in Figure 1, facilitating that the electrodes freely slide over said planes both in the extraction and in the entry of cathodes and / or anodes of the electrolytic cell.
  • FIGS. 2a, 2b and 2c it is possible to appreciate a stiffening device according to a preferred embodiment of the invention, wherein said device has inclined planes 3 at both ends of the device 2.
  • figures 2a, 2b and 2c which exposes Rear, front and side views of the stiffener device 2 respectively, show its triangular configuration, where the back is wider than the front.
  • said figure shows fixing holes 6 located at the front end of the stiffening device 2, along the extension thereof. Said fixing holes 6 allow the stiffening device 2 to be firmly fixed to the side 5 of the anode 1, using fixing means not shown in the figure.
  • FIGs 3a and 3b show schematic views that allow to observe in greater detail the configuration of the stiffener device 2.
  • said device has inclined side walls 4 in the form of "V" that define an equidistant angle with respect to to the transverse symmetry axis of the stiffening device 2, describing a triangular configuration as shown in Figure 3b.
  • the inclined side walls 4 define that the stiffening device 2 has a triangular cross-section, with a rear part wider than the front part, where said section, in particular the rear part, is responsible for maintaining adequate separation.
  • the inclined side walls 4 meet at the front center of the stiffener device 2 to form a shim zone 7, of square or rectangular section, preferably arranged along most of the front extension of said device, more preferably in all its frontal extension.
  • the shim zone 7 allows most of the side 5 of an anode 1 to be installed tightly in said shim zone 7, at least covering 50% of said cost or between 50% and 100%, providing sufficient surface for that the fixing holes 6, which are preferably present on the lateral sides of said shim zone, establish fixing points of the anode 1 to the stiffening device 2, stiffening the anodic plate.
  • one embodiment of the invention has a shim zone 7 with beveled ends 8.
  • Such beveled ends 8 favor electrodeposition by exposing both surfaces of the anodic plate to a adjacent angle to adjacent cathodes , which facilitates the circulation of the current between the electrodes and through the electrolytic medium.
  • Figure 4 shows a preferred embodiment of the system of the invention, where stiffening devices 2 are installed in most of both sides 5 of a set of anodes 1, where said devices cover at least 50% of the extension of said sides 5 or preferably between 50% and 100%, covering in a modality the entire extension of said sides. From said figure it can be seen that between two anodes there is provided a space in which a cathodic plate is located, preferably with covers, where the stiffening devices 2 establish an equidistant separation between an anode and its adjacent cathode along the entire electrode, preventing it from becoming deformed and, therefore, joining with a cathode throughout its surface area.
  • Figure 5 shows a diagram of the position occupied by anodes 1, using stiffening device 2, next to cathodes 9, using edge covers 10.
  • the stiffening device establishes an equidistant separation between anode 1 and cathode 9, preventing it from varying both along the electrode and while the anode degrades thanks to the stiffening effect. Said separation, together with the effect of avoiding deformation of the anodic plate, allows to reduce the occurrence of short circuits that affect the formation of nodulations and, therefore, increases the production of high quality cathodes.
  • Figures 7a and 7b show an embodiment of the invention comprising geometric characteristics of the stiffening device 2 that facilitate the passage of the current lines through the various openings 11 that can be made along the device.
  • the modality shown in Figures 7a and 7b describe a discontinuous fit zone 7, that is, with openings 11 which allow to expose a larger surface of the anode in order to provide a greater area for the circulation of current between anode and cathode to through the electrolytic medium, while still maintaining the stiffening effect provided by the device of the invention.
  • Figures 8a and 8b show another embodiment of the invention that includes distance elements 12 located on one or both sides or inclined walls of the stiffening device, preferably at its rear, where in a preferred embodiment said distance elements 12 form an integral part of said device.
  • the main characteristic of the distance elements 12 is to establish a contact surface between anodes, so that the separation between two anodes is always constant and, therefore, so that the cathode located between anodes that have the stiffening device 2 with distance elements 12 have a constant separation between adjacent anodes.
  • Figures 9a and 9b show an embodiment of the system of the invention comprising the use of a stiffening device 2 with distance elements 12, it being possible to appreciate the contact between said distance elements belonging to stiffening devices located in adjacent anodes.
  • said distance elements 12 may be located along the entire rear extension of the stiffening device 2 or at least in part of said extension, as can be seen in Figure 8b.
  • said spacer elements 12 are located in the center of the posterior longitudinal extension of the stiffening device 2, so as to provide a balanced contact surface between anodes as shown in Figures 9a and 9b.
  • Figure 10 shows an embodiment of the system of the invention that, in addition to incorporating stiffening devices 2 on the sides of each anode 1, incorporates at least one central separating device 13, and more of said devices may exist in the transverse extension of anode 1.
  • the central separating device 13 consists of a continuous ring that surrounds the anode on both sides, both in its upper part passing over the support bar and in its lower edge.
  • another embodiment of the central separating device 13 comprises a sectioned ring in its lower part, as a clamp, where this type of device can be easily installed in the anode when inserted from its upper part, without the need to fix both sides Of the device.
  • the central separating devices 13 are responsible for strengthening the stiffening characteristics of the stiffening devices 2, being useful in the case of anodes having high wear and / or in anodes of great transverse extension. Additionally, in figure 10 it is possible to appreciate that the central separating device 13 has fixing holes 6 along its extension, as in the shim zone 7 of the stiffening device 2, which allow fixing the central separating device 13 to the anode surface as well as joining the components of said device, specifically in its lower part if it corresponds to devices of the continuous ring type.
  • Figures 1, 1 Ib and 11c show an embodiment of the stiffener device 2 comprising a variable geometric configuration along the longitudinal extension of the device, defining a variable cross section along said extension.
  • a variable cross-section of the stiffener device 2 defined by a variable inclined side wall 4, facilitates the circulation of the electrolytic medium in the same way that occurs when using the discontinuous fit zone mode 7, expanding the exposure angle of the electrode surface.
  • Figures 12a and 12b show an embodiment of the stiffener device 2 in which the shim zone 7, which is formed from the joint between the inclined side walls 4 in the form of "V", is reinforced.
  • the shim zone 7 does not project from the joint of the inclined side walls 4 as in the preferred embodiment of the invention, but consists in a perforation or channel, of rectangular or square section, disposed within the side walls of the device, located in the axis of symmetry of the cross section of the device, specifically in its front part.
  • the shim zone 7 does not comprise projecting edges as in the preferred embodiment shown in Figure 3b, reducing the weakness of said edges in the face of mechanical stresses as well as providing side walls of the stiffening device that describe a surface with greater continuity, which favors the flow of current and, therefore, electrodeposition.
  • an embodiment of the stiffening device according to the invention has a triangular shaped lower support, preferably integrated to the device, which has a base which, depending on the dimensions of the electrolytic cell, comes into contact with the bottom of said cell, offering greater stability to the anodes.
  • said lower support has inclined walls intended to favor the installation and removal of adjacent cathodes, preventing them from hitting the bottom part of the anode.
  • any of the modalities presented above of the stiffener device and, therefore, of the stiffener system for example consisting of a combination of one or more of the above characteristics and / or of any component known in the art, They are considered within the scope of protection of this application.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Spark Plugs (AREA)

Abstract

L'invention concerne un dispositif de rigidification d'électrodes évitant la survenue de courts-circuits entre anodes et cathodes pendant l'opération d'électrodéposition, ce dispositif comprenant un corps monolithique rigide à parois latérales inclinées formant une section transversale de forme triangulaire, plus large au niveau de sa partie arrière, lesdites parois latérales inclinées se joignant au niveau de la partie avant du dispositif de manière à former une zone de calage destinée à recevoir, de manière ajustée, le bord périphérique d'une électrode, de préférence une anode, laquelle est rigidifiée sur toute sa longueur et séparée des électrodes adjacentes. L'invention concerne également un système de rigidification associé.
PCT/CL2014/000030 2013-07-22 2014-06-19 Dispositif de rigidification d'électrodes et système de rigidification utilisant ce dispositif Ceased WO2015010220A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/906,545 US20160160375A1 (en) 2013-07-22 2014-06-19 Electrode-rigidifying device and rigidifying system using said device
US16/102,718 US20190078223A1 (en) 2013-07-22 2018-08-13 Anode-stiffening device and stiffening system that uses said device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2013002099A CL2013002099A1 (es) 2013-07-22 2013-07-22 Dispositivo rigidizador de electrodos que comprende un cuerpo monolitico rigido de paredes laterales inclinadas que configuran una seccion transversal de forma triangular, en donde dichas paredes laterales se juntan en la parte frontal del dispositivo formando una zona de calce dispuesta para alojar el borde periferico de un electrodo; sistema rigidizador.
CL2099-2013 2013-07-22

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/906,545 A-371-Of-International US20160160375A1 (en) 2013-07-22 2014-06-19 Electrode-rigidifying device and rigidifying system using said device
US16/102,718 Continuation-In-Part US20190078223A1 (en) 2013-07-22 2018-08-13 Anode-stiffening device and stiffening system that uses said device

Publications (2)

Publication Number Publication Date
WO2015010220A2 true WO2015010220A2 (fr) 2015-01-29
WO2015010220A3 WO2015010220A3 (fr) 2015-03-19

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US (1) US20160160375A1 (fr)
CL (1) CL2013002099A1 (fr)
WO (1) WO2015010220A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017193225A1 (fr) * 2016-05-09 2017-11-16 Pl Copper Spa Dispositif d'optimisation de l'énergie dans des procédés électrolytiques
WO2019161514A1 (fr) * 2018-02-20 2019-08-29 Salazar Soto Boris Edgardo Système modulaire de centrage et d'alignement d'électrodes et couvre bords permanents de cathodes dans des cellules électrolytiques
WO2021068090A1 (fr) * 2019-10-10 2021-04-15 Yanez Castaneda Percy Danilo Dispositif optimisateur d'électrodéposition de métaux et système correpondant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107287626A (zh) * 2017-08-11 2017-10-24 杭州帝洛森科技有限公司 一种防短路的阳极板及应用其的电解装置
CN111850646A (zh) * 2020-08-18 2020-10-30 重庆佰鸿机械设备有限公司 管件内壁均匀流镀装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997421A (en) 1976-02-02 1976-12-14 Cominco Ltd. Top-mounted anode spacer clip
US4619751A (en) 1985-04-24 1986-10-28 Robinson Douglas J Anode insulator for electrolytic cell
US5762776A (en) 1997-02-18 1998-06-09 Quadna, Inc. Spacer for electrodes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713315B2 (ja) * 1987-04-10 1995-02-15 三菱マテリアル株式会社 極板型枠
US9150974B2 (en) * 2011-02-16 2015-10-06 Freeport Minerals Corporation Anode assembly, system including the assembly, and method of using same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997421A (en) 1976-02-02 1976-12-14 Cominco Ltd. Top-mounted anode spacer clip
US4619751A (en) 1985-04-24 1986-10-28 Robinson Douglas J Anode insulator for electrolytic cell
US5762776A (en) 1997-02-18 1998-06-09 Quadna, Inc. Spacer for electrodes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017193225A1 (fr) * 2016-05-09 2017-11-16 Pl Copper Spa Dispositif d'optimisation de l'énergie dans des procédés électrolytiques
WO2019161514A1 (fr) * 2018-02-20 2019-08-29 Salazar Soto Boris Edgardo Système modulaire de centrage et d'alignement d'électrodes et couvre bords permanents de cathodes dans des cellules électrolytiques
WO2021068090A1 (fr) * 2019-10-10 2021-04-15 Yanez Castaneda Percy Danilo Dispositif optimisateur d'électrodéposition de métaux et système correpondant
US12325924B2 (en) 2019-10-10 2025-06-10 Percy Danilo YÁÑEZ CASTAÑEDA System and device for optimizing metal electrodeposition

Also Published As

Publication number Publication date
CL2013002099A1 (es) 2014-02-14
US20160160375A1 (en) 2016-06-09
WO2015010220A3 (fr) 2015-03-19

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