US20150240372A1 - Cathode and method of manufacturing - Google Patents

Cathode and method of manufacturing Download PDF

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Publication number
US20150240372A1
US20150240372A1 US14/431,569 US201314431569A US2015240372A1 US 20150240372 A1 US20150240372 A1 US 20150240372A1 US 201314431569 A US201314431569 A US 201314431569A US 2015240372 A1 US2015240372 A1 US 2015240372A1
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US
United States
Prior art keywords
conducting bar
electrode
conducting
plate
inclined portion
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.)
Abandoned
Application number
US14/431,569
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English (en)
Inventor
Jason Robert Cerezo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Glencore Technology Pty Ltd
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Glencore Technology Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from AU2012904201A external-priority patent/AU2012904201A0/en
Application filed by Glencore Technology Pty Ltd filed Critical Glencore Technology Pty Ltd
Assigned to STEELMORE HOLDINGS PTY LTD. reassignment STEELMORE HOLDINGS PTY LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CEREZO, JASON ROBERT, RICHBURY PTY. LTD.
Assigned to GLENCORE TECHNOLOGY PTY LTD reassignment GLENCORE TECHNOLOGY PTY LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STEELMORE HOLDINGS PTY LTD.
Publication of US20150240372A1 publication Critical patent/US20150240372A1/en
Abandoned legal-status Critical Current

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    • 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
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing

Definitions

  • This invention is concerned with an electrode for electrolytic processes.
  • the invention is concerned particularly, although not exclusively, with a cathode for an electrolysis process.
  • Cathodes for electrolytic processes consist of a conducting bar and a plate of stainless steel or titanium placed in an electrolytic solution hanging from the conducting bar.
  • a problem with existing cathodes is that the conducting bar made of copper (which is a highly conductive metal) is welded to the stainless steel or titanium plate.
  • the problem is that such a weld is difficult to produce and has bad resistance to acid mist which is produced, potentially resulting in the weld being quickly corroded and the plate becoming detached.
  • a problem with replacing the copper with a different metal is that there would be a significant voltage drop, this, multiplied by the number of electrodes in use and the high currents increases the operating costs substantially.
  • One way around this is to coat a stainless steel conducting bar in copper, however, the copper coating separates from the stainless steel after a while due to the corrosion produced by the acid mist of the electrolytic operation, leading to a larger voltage drop.
  • Another prior art solution is to weld the stainless steel to the copper in a three part process where the first zone is formed of a copper-nickel alloy, an intermediate zone of mostly a nickel alloy and a second zone of stainless steel-nickel. This results in a satisfactory solution but requires a special welding process using nickel electrodes.
  • the invention resides in an electrode for electrolytic processes, the electrode comprising:
  • the conducting bar has a conducting member attached thereto to increase the conductivity of the conducting bar.
  • the electrode is a cathode. More preferably, the cathode can be used for electrolytic processes of copper production.
  • the electrolytic processes are electrolytic processes of copper production.
  • copper electro refining or electro winning are electrolytic processes of copper production.
  • the conducting bar is made of stainless steel.
  • the conducting bar may be made from another suitable metal or alloy, such as titanium. It will be appreciated that the conducting bar may also be referred to as a hanger bar.
  • the conducting member is attached to the conducting bar by welding.
  • the conducting bar preferably has an inside surface.
  • the conducting bar is hollow. More preferably the conducting bar has a tubular shape that is made by roll forming.
  • Roll forming is typically a continuous bending operation in which a long strip of sheet metal is passed through sets of rolls mounted on consecutive stands, each set performing only an incremental part of the bend, until the desired cross-section profile is obtained.
  • Design of the rolls used in the roll forming operation typically starts with a flower formation, which is the sequence of profile cross-sections, one profile for each stand of rolls.
  • the conducting member is made of copper or a copper alloy.
  • the conducting member may be made from another suitable metal or alloy having low resistivity.
  • the conducting member is welded to an inside surface of the conducting bar.
  • the conducting member is welded to an inside surface of the conducting bar before the conducting bar is formed.
  • the conducting member is welded to a sheet or plate which is then roll formed into a conducting bar.
  • the plate is made from stainless steel.
  • the plate may be made from another suitable metal or alloy, such as titanium.
  • the conducting bar is made from the same material as the plate. More preferably the conducting bar and plate are made of stainless steel. Typically the plate is welded to the conducting bar. Alternatively, the plate may be integrally formed with the conducting bar.
  • the conducting bar may have a first and second portion substantially in axial alignment, a third portion axially offset from the first and second portion, a fourth portion disposed between the first and third portion and a fifth portion disposed between second and the third portion.
  • the plate is attached to the third portion.
  • the axis of the third portion is below the level of the axis of the first and second portion. A benefit of this is that more of the plate can be in contact with an electrolyte solution.
  • the conducting bar is roll formed into such a shape.
  • the invention resides in a method of manufacturing an electrode, the method including the steps of:
  • the step of attaching the conducting member to an inside surface of the conducting bar involves welding the conducting member to the conducting bar.
  • the step of attaching the plate to the conducting bar involves welding the plate to the conducting bar.
  • the method includes the step of forming the conducting bar into a hollow shape and/or a tubular shape.
  • the step of forming the conducting bar into a hollow shape and/or a tubular shape involves roll forming the conducting bar.
  • the method includes the step of forming the conducting bar such that a first and second portion are substantially in axial alignment, a third portion is axially offset from the first and second portion, a fourth portion is disposed between the first and third portion and a fifth portion is disposed between second and the third portion.
  • the step of forming the conducting bar into such a configuration involves roll forming the conducting bar.
  • the method includes the step of forming the conducting bar such that a first and second portion are substantially in axial alignment, a third inclined portion and fourth inclined portion are disposed between the first and second portions, wherein the axes of the third inclined portion and fourth inclined portion are angled relative to the axes of the first and second portions.
  • the third inclined portion and the fourth inclined portion form an obtuse angle.
  • the third inclined portion and the fourth inclined portion form a right angle or an acute angle.
  • the third inclined portion is adjacent to the fourth inclined portion.
  • the invention resides in an electrode for electrolytic processes, the electrode comprising:
  • the conducting bar has a first and second portion substantially in axial alignment, a third inclined portion and fourth inclined portion disposed between the first and second portions, wherein the axes of the third inclined portion and fourth inclined portion are angled relative to the axes of the first and second portions.
  • the third inclined portion and the fourth inclined portion form an obtuse angle.
  • the third inclined portion and the fourth inclined portion form a right angle or an acute angle.
  • the third inclined portion is adjacent to the fourth inclined portion.
  • the third inclined portion and the fourth inclined portion are inclined inwardly relative to an upper edge of the plate.
  • the plate comprises at least one cut-out.
  • the at least one cut-out is located between a plane defined by the upper edge of the plate and a plane defined by the lowest part of the conducting bar.
  • the conducting bar is a conducting bar as disclosed in this specification.
  • the conducting bar may be made of copper and/or a copper alloy.
  • the invention resides in a hollow conducting bar for an electrode having:
  • a conducting member attached to an inside surface of the conducting bar.
  • the conducting bar is made of stainless steel.
  • the conducting bar may be made from another suitable metal or alloy, such as titanium.
  • the conducting member is attached to the conducting bar by welding.
  • the conducting member is made of copper or a copper alloy.
  • the conducting member may be made from another suitable metal or alloy having low resistivity.
  • the conducting member is welded to an inside surface of the conducting bar before the conducting bar is formed.
  • the conducting member is welded to a sheet or plate which is then roll formed into a conducting bar.
  • the conducting bar has a first and second portion substantially in axial alignment, a third portion axially offset from the first and second portion, a fourth portion disposed between the first and third portion and a fifth portion disposed between second and the third portion.
  • the conducting bar has a first and second portion substantially in axial alignment, a third inclined portion and fourth inclined portion disposed between the first and second portions, wherein the axes of the third inclined portion and fourth inclined portion are angled relative to the axes of the first and second portions.
  • the third inclined portion and the fourth inclined portion form an obtuse angle.
  • the third inclined portion and the fourth inclined portion form a right angle or an acute angle.
  • the third inclined portion is adjacent to the fourth inclined portion.
  • FIG. 2 shows perspective schematic view according to an embodiment of the invention
  • FIG. 3 shows a schematic cross sectional view of a conducting bar and a conducting member according to an embodiment of the invention
  • FIG. 4 shows a schematic cross sectional view of the conducting bar and a conducting member of FIG. 3 welded together;
  • FIG. 5 shows a schematic cross sectional view of the conducting bar of FIG. 4 formed into a hollow shape
  • FIG. 6 shows a schematic cross sectional view of the conducting bar of FIG. 5 welded
  • FIG. 7 shows a schematic cross sectional view of the conducting bar of FIG. 6 and a plate
  • FIG. 8 shows a schematic cross sectional view of the conducting bar and the plate of FIG. 7 welded together
  • FIG. 9 shows a schematic cross sectional view of a conducting bar according to an embodiment of the invention.
  • FIG. 10 shows a schematic view of an electrode according to an embodiment of the invention.
  • FIG. 11 shows a schematic view of an electrode according to an embodiment of the invention.
  • FIG. 12 shows a schematic view of an electrode according to an embodiment of the invention.
  • the cathode 10 comprises a conducting bar 20 attached to a plate 30 by welds 32 .
  • a conducting member 26 is attached to the conducting bar 20 by welds 28 .
  • the conducting bar 20 and the plate 30 are made of stainless steel and as such the welds 32 are stainless steel welds of high structural strength having resistance to corrosion.
  • The, conducting bar 20 is hollow, with an inside surface 22 .
  • the conducting bar 20 is welded by a weld 24 to provide a tube shaped conducting bar 20 .
  • the conducting member 26 is made of copper and the welds 28 are not required to be as strong as the welds 32 , as there is minimal structural load placed on welds 28 .
  • the welds 28 are primarily for conductive purposes such that the conductivity of the stainless steel conducting bar 20 is increased by the copper conducting member 26 .
  • a benefit of having the conductive member 26 welded to an inside surface 22 of the conducting bar 20 is that the conductive member 26 and the welds 28 are less susceptible to corrosion.
  • a benefit of welding the conductive member 26 to the conductive bar 20 is that the conductive member 26 is not required to provide structural strength to the conductive bar 20 , as such, less copper material can be used, resulting in reduced costs.
  • FIGS. 3 , 4 , 5 , 6 , 7 and 8 there is shown a cathode 10 during various stages of production.
  • the conducting member 26 is placed on the inside surface 22 (i.e. this will become the inside surface) of conducting bar 20 (i.e. this plate or sheet material will become the conducting bar).
  • the conducting member 26 is attached to the conducting bar 20 by welds 28 .
  • the conducting bar 20 is roll formed to provide a hollow shape.
  • the conducting bar 20 is sealed along its length by weld 24 .
  • the plate 30 is positioned adjacent to the conducting bar 20 .
  • the plate 30 is attached to the conducting bar by welds 32 .
  • FIG. 9 there is shown a cross sectional view of a conducting bar 20 according to an embodiment of the present invention.
  • the conducting bar 20 is made of stainless steel and has a conducting member 26 made of copper attached to an inside surface 22 of the conducting bar 20 by welds 28 .
  • the conducting member 26 has a ‘U’ shape cross section. A benefit of this is that the conducting member 26 can be made by bending or roll forming a sheet or plate material.
  • FIG. 10 there is shown a cathode 10 according to the present invention with a “straight” shaped conducting bar 20 and a plate 30 which is placed in electrolyte solution 50 .
  • a cathode 10 with conducting bar 20 having a first portion 70 and a second portion 72 substantially in axial alignment, a third portion 74 is axially offset from the first portion 70 and second portion 72 , a fourth portion 76 is disposed between the first portion 70 and third portion 74 and a fifth portion 78 is disposed between second portion 72 and the third portion 74 .
  • a plate 30 is attached to the third portion 74 of the conducting bar 20 . The plate 30 is placed in electrolyte solution 50 .
  • the cathode 10 in FIG. 11 has more of the plate 30 in the electrolytic solution, this results in a lower voltage drop between the conducting bar 20 and the part of the plate 30 which is in the electrolytic solution 50 .

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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)
US14/431,569 2012-09-26 2013-09-26 Cathode and method of manufacturing Abandoned US20150240372A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2012904201A AU2012904201A0 (en) 2012-09-26 A cathode and method of manufacturing
AU2012904201 2012-09-26
PCT/AU2013/001109 WO2014047689A1 (en) 2012-09-26 2013-09-26 A cathode and method of manufacturing

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2013/001109 A-371-Of-International WO2014047689A1 (en) 2012-09-26 2013-09-26 A cathode and method of manufacturing

Related Child Applications (1)

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US16/156,531 Division US11136683B2 (en) 2012-09-26 2018-10-10 Cathode and method of manufacturing

Publications (1)

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US20150240372A1 true US20150240372A1 (en) 2015-08-27

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US14/431,569 Abandoned US20150240372A1 (en) 2012-09-26 2013-09-26 Cathode and method of manufacturing
US16/156,531 Active 2034-05-14 US11136683B2 (en) 2012-09-26 2018-10-10 Cathode and method of manufacturing

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US (2) US20150240372A1 (pt)
EP (1) EP2900848B1 (pt)
JP (2) JP6616187B2 (pt)
CN (1) CN103917696B (pt)
AP (1) AP2013008333A0 (pt)
AU (1) AU2013325117B2 (pt)
BR (1) BR112015006769B1 (pt)
CA (1) CA2886023C (pt)
CL (1) CL2015000750A1 (pt)
CY (1) CY1123928T1 (pt)
ES (1) ES2858558T3 (pt)
MX (1) MX365023B (pt)
PE (1) PE20150969A1 (pt)
PL (1) PL2900848T3 (pt)
RU (1) RU2663500C2 (pt)
WO (1) WO2014047689A1 (pt)
ZA (1) ZA201502315B (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017176118A1 (en) * 2016-04-06 2017-10-12 Beheermaatschappij Clement Weert B.V. Cathode carrier for use in a electrolysis device, and such an electrolysis device
WO2018045407A1 (en) * 2016-09-09 2018-03-15 Glencore Technology Pty Limited Improvements in hanger bars

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3748041A1 (en) 2019-06-03 2020-12-09 Permascand Ab An electrode assembly for electrochemical processes

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US20110272114A1 (en) * 2010-05-05 2011-11-10 Horacio Rafart Mouthon Method for manufacturing anodes

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US4269687A (en) * 1979-01-23 1981-05-26 Imi Kynoch Limited Electrode suspension bars
US7332064B2 (en) * 2002-01-25 2008-02-19 Mount Isa Mines Limited Hangar bar
CN201686759U (zh) * 2010-04-30 2010-12-29 任海波 清洁免维护电解锰用阴极
US20110272114A1 (en) * 2010-05-05 2011-11-10 Horacio Rafart Mouthon Method for manufacturing anodes

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017176118A1 (en) * 2016-04-06 2017-10-12 Beheermaatschappij Clement Weert B.V. Cathode carrier for use in a electrolysis device, and such an electrolysis device
WO2018045407A1 (en) * 2016-09-09 2018-03-15 Glencore Technology Pty Limited Improvements in hanger bars
EA037114B1 (ru) * 2016-09-09 2021-02-08 Гленкор Текнолоджи Пти Лимитед Усовершенствования в подвесных штангах
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Also Published As

Publication number Publication date
MX2015003847A (es) 2015-07-17
MX365023B (es) 2019-05-20
AU2013325117B2 (en) 2018-08-09
RU2663500C2 (ru) 2018-08-07
PL2900848T3 (pl) 2021-06-14
CN103917696A (zh) 2014-07-09
BR112015006769B1 (pt) 2022-02-01
BR112015006769A2 (pt) 2017-07-04
JP6616187B2 (ja) 2019-12-04
EP2900848A1 (en) 2015-08-05
RU2015113932A (ru) 2016-11-20
EP2900848A4 (en) 2016-04-20
US11136683B2 (en) 2021-10-05
AU2013325117A1 (en) 2015-04-16
CY1123928T1 (el) 2022-03-24
ES2858558T3 (es) 2021-09-30
CA2886023A1 (en) 2014-04-03
JP2019163549A (ja) 2019-09-26
ZA201502315B (en) 2016-01-27
EP2900848B1 (en) 2020-12-09
WO2014047689A1 (en) 2014-04-03
CN103917696B (zh) 2018-02-27
CL2015000750A1 (es) 2015-12-04
JP6840190B2 (ja) 2021-03-10
JP2015529286A (ja) 2015-10-05
PE20150969A1 (es) 2015-07-17
CA2886023C (en) 2021-06-15
US20190040539A1 (en) 2019-02-07
AP2013008333A0 (en) 2015-03-31

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Owner name: GLENCORE TECHNOLOGY PTY LTD, AUSTRALIA

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Effective date: 20141027

Owner name: STEELMORE HOLDINGS PTY LTD., UNITED KINGDOM

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