US3798151A - Deposition plate to be used as a starter blank or cathode for use in metal refining - Google Patents

Deposition plate to be used as a starter blank or cathode for use in metal refining Download PDF

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Publication number
US3798151A
US3798151A US00292999A US3798151DA US3798151A US 3798151 A US3798151 A US 3798151A US 00292999 A US00292999 A US 00292999A US 3798151D A US3798151D A US 3798151DA US 3798151 A US3798151 A US 3798151A
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United States
Prior art keywords
frame
starter
blank
cathode
plate
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Expired - Lifetime
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US00292999A
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English (en)
Inventor
A Takamura
Y Moriguchi
H Sato
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Kobe Steel Ltd
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Kobe Steel Ltd
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Publication date
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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

Definitions

  • a deposition plate to be used as a starter blank for producing a starter sheet useful in an electrolytic metalrefining process the starter blank having a resilient, flexible frame around the peripheral edge thereof.
  • a wedge member is associated with the frame, the wedge member being removed from the frame upon insertion of the blank, and being subsequently inserted within the frame so as to lock the frame and blank together.
  • the resilient flexible frame preferably forms a sharp intersection with the starter blank.
  • the plate may likewise be used as a cathode, in which case the resilient, flexible frame does not extend around the entire periphery of the cathode as is the case with the starter blank, but to the contrary, extends only along the longitudinal sides thereof, the bottom portion having been removed.
  • the bottom edge of the plate contains an inwardly extending V-shaped groove or notch in lieu of the removed portion of the resilient frame.
  • the present invention relates generally to a starter blank, for producing a starter sheet, or cathode, upon which product copper plates may be deposited, for use in an electrolytic metal-refining process and more particularly to an improved starter blank and cathode having an insulating body which provides for improved stripping of the starter sheet or product plates from the starter blank or cathode, and which, is easy to maintain.
  • the process for producing a starter sheet or product plates normally includes the steps of depositing upon a starter blank or cathode, respectively, which may be made of various materials, such as, for example, copper or titanium, a copper layer having a thickness of from 0.5 to about 10.0 mm., and subsequently stripping the copper layer i.e., the starter sheet or product plate, from the starter blank or cathode.
  • a starter blank or cathode which may be made of various materials, such as, for example, copper or titanium, a copper layer having a thickness of from 0.5 to about 10.0 mm.
  • various means have been employed to facilitate the stripping operation as well as obtain a starter sheet or product plate of a given configuration.
  • Such means have included, for example, the use of a vinyl chloride resin frame, having a thickness of from 0.5 to about 2.0 mm., the frame being adhered to the peripheral edges of the starter blank or cathode by the use of an adhesive.
  • Another object of the present invention is to provide an improved starter blank or cathode which has an improved frame mounting to facilitate the stripping operation of the starter sheet or product plate.
  • Still another object of the present invention is to provide an improved starter blank or cathode of increased durability.
  • Yet another object of the present invention is to provide an improved starter blank or cathode which will decrease repair and maintenance time.
  • a plate to be used as a starter blank for producing a starter sheet for use in an electrolytic metal-refining process, having a flexible, resilient, U-shaped frame placed upon and around its peripheral edges.
  • a wedge is associated with the frame member. To insert the starter blank within frame member, the wedge is removed from the frame member and the notched portions of the frame member which house the Wedge member are squeezed together simulating a lever-and-fulcrum action. Such action consequently spreads the U-shaped portion of the frame member, thereby facilitating easy insertion of the starter blank within the frame.
  • the wedges are subsequently inserted within the notched housing portions, thereby simulating a shrink-fitting operation.
  • the bottom portion of the frame is removed, and in lieu thereof, the bottom edge portion of the plate is provided with an inwardly extending V-shaped groove or notch, such configuration aiding the stripping process for the cathode similar to that performed by the removed frame portion relative to the starter blank.
  • FIG. 1 is a cross-section view of a conventional starter blank showing the starter blank inserted within its insulating frame;
  • FIG. 2 is an enlarged cross-section view of a starter blank as illustrated in FIG. 1, taken along the line AA of FIG. 1;
  • FIG. 4 is an enlarged cross-section view of another embodiment of a starter blank constructed according to this invention.
  • FIG. is a cross-section view of a cathode constructed according to the present invention.
  • FIG. 6 is an enlarged cross-section view of a cathode as illustrated in FIG. 5, taken along line 6--6 of FIG. 5, prior to deposition of the copper product plates;
  • FIG. 7 is an enlarged cross-section view of a cathode as illustrated in FIG. 5, taken along line 6-6 of FIG. 5, subsequent to deposition of the copper product plates.
  • FIGS. -1 and 2 there is shown : a conventional deposition plate 1 for use as a starter blank having a vinyl chloride resin insulating frame 2 fitted upon its peripheral edges, resin frame 2 being substantially U-shaped in cross-section so as to receive within its U-shaped portion, blank 1.
  • a vinyl chloride resin insulating frame 2 fitted upon its peripheral edges, resin frame 2 being substantially U-shaped in cross-section so as to receive within its U-shaped portion, blank 1.
  • the durability of such a vinyl chloride resin frame has proven to be unsatisfactory.
  • the body of the frame must of necessity having rather thick walls comprising its U-shape so as to take full advantage of its resilient properties.
  • Such walled configuration however, as disclosed particularly in FIG.
  • FIG. 3 one embodiment of the present invention is illustrated, such first embodiment comprising a starter blank 1 having an insulating frame 5 fitted upon its peripheral edges, frame 5 being substantially U-shaped in cross-section so as to receive within its U-shaped portion, blank 1, as at groove 5'.
  • the material of the starter blank 1 is not necessarily limited to copper. However, in the case of copper electrolysis, the starter blank may be made of copper, titanium or the like and worked or formed according to a cold rolling process.
  • the frame 5 is made of a resilient material which is not susceptible to any of the electrolytic conditions, such as, for example, any of several rubbers including neoprene rubber, butyl rubber or the like.
  • Frame 5 further includes a triangular notched portion 8 adapted to removably receive a wedge member 6 therein, noted portion 8 being located diametrically opposite the groove portion 5' of frame 5 corresponding to the inserted location of blank 1.
  • Wedge 6 may have convex or beaded portions 7, 7 on its opposite sides, in which case, the notched portion 8 is the frame 5 would have concave portions 9 and 9' complementary therewith, such interengaging portions serving to prevent the wedge 6 from becoming separated from the frame 5 during the electrolytic operation.
  • the material of the wedge 6 should be one harder than that of frame 5, such as, for example, harder rubber or vinyl chloride. Preferably, such materials should also be heatresistant and acid-resistant.
  • the insulating frame 5 of the present invention provides many advantages over the conventional U-shaped frame, one being for example, that the insulating frame 5 can be easily fitted upon the three peripheral edges of the starter blank 1 Owing to the fact that groove 5' is capable of being spread open by the pressing together of the notched portion 8 when the wedge 6 is not inserted therein, according to a so-called lever and fulcrum principle.
  • the frame 5 can be firmly fitted or locked upon the peripheral edges of the starter blank 1 by inserting wedge 6 in the notched portion 8, the locking action simulating a shrink-fit.
  • the starter sheet 3 of the present invention may easily be stripped from the starter blank 1 even if the deposited copper layer covers the upper portion of the frame 5 as shown at 4 in FIG. 2, because the insulating frame is firmly fitted or locked with respect to the surfaces of the starter blank 1 because of the groove 5' being pressed together by means of the wedge 6 inserted therein, in the manner heretofore described.
  • This further prevents distortion of or separation of the frame 5 relative to blank 1 when the starter sheet 3 is stripped from the starter blank 1. Accordingly, as there is no possibility of the insulating frame 5 separating from the starter blank 1, stable and sound electrolytic operation is facilitated.
  • FIG. 4 a second embodiment of the present invention is disclosed, the rubber frame 5 having lateral surfaces 10, 10 which are tapered toward the starter blank to form a sharp intersection so as to blend into the surfaces of the starter blank 1 in a more streamlined fashion.
  • These tapered or sloped contours in cross section further facilitate the stripping of the starter blank 1 as can readily be appreciated by merely comparing such portions with the corresponding portions of the rubber frames as are shown in FIGS. 2 and 3. Note however, that the degree of taper cannot be too great, for then the locking power of wedge 6 for frame 5 relative to starter blank 1 is diminished.
  • the included angle from contour to contour should be preferably in the range of from 30-70.
  • FIGS. 5 and 6 there is shown a deposition plate 1, for use as a cathode, of thickness 1, prior to deposition of the copper product plates 3. It is noted that a portion of frame 5 has been removed from the bottom edge portion 11 of cathode plate 1. This is a necessity when utilizing the plate 1 as a cathode, for in such process, the amount of copper deposited upon both surfaces of plate 1 is substantially greater than that deposited when using plate 1 as a starter blank for producing starter sheets. Consequently, if such portion of the frame 5 were not removed, it would be easily damaged by the weight of the copper deposition which tends to accumulate within the bottom area, as may be apparent from reference to FIG. 7.
  • the frame 5 serves to aid in easily stripping the copper deposits from plate 1 due to the fact that such frame 5 serves as insulation between the two surfaces of copper deposition, i.e., the copper deposits upon both surfaces of plate 1 remain separated.
  • the frame 5 serves as insulation between the two surfaces of copper deposition, i.e., the copper deposits upon both surfaces of plate 1 remain separated.
  • the copper deposits are no longer separated, as will be seen from FIG. 7. Consequently, modification of the plate 1 is necessary in order to facilitate easy stripping of the deposits 3 Where frame 5 is absent.
  • Such modification of plate 1 resides in the provision of a V-shaped groove or notch 12 formed within the bottom edge portion 11 of plate 1.
  • Reference to FIG. 7 will disclose that upon completion of the deposition process, the copper product plates 3 will have adhered to the external surface configuration of plate 1 and consequently will form a division 13, between the two product plates 3, at a point corresponding to the apex 14 of notch 12. As a result of such formation, the two product plates 3 may be divided and split along the division 13, thereby facilitating their easy separation as well as the separation from cathode plate 1.
  • a deposition plate upon which copper deposits may be deposited in an electrolytic metal-refining process comprising:
  • an insulator frame member including an elongated flexible element having a groove for receiving an edge portion of said plate therein;

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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)
US00292999A 1971-10-08 1972-09-28 Deposition plate to be used as a starter blank or cathode for use in metal refining Expired - Lifetime US3798151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971093125U JPS514964Y2 (fr) 1971-10-08 1971-10-08

Publications (1)

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US3798151A true US3798151A (en) 1974-03-19

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US (1) US3798151A (fr)
JP (1) JPS514964Y2 (fr)
SU (1) SU627763A3 (fr)
ZM (1) ZM16372A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980548A (en) * 1972-10-26 1976-09-14 The Dowa Mining Co., Ltd. Automatic apparatus for stripping deposited metal from a cathode plate in electrowinning process
US4040937A (en) * 1974-12-28 1977-08-09 Ryozo Iijima Mother blank for producing starting sheets used in electrolytic non-ferrous metal production
EP0082221A1 (fr) * 1981-12-23 1983-06-29 Peter Berger Protection d'arête d'électrode, électrode ainsi protégée
US4406769A (en) * 1980-07-26 1983-09-27 Peter Berger Electrode edge protector, electrode provided with such protector and electrodeposits and/or products of electrolysis manufactured by employing such electrodes
US4670124A (en) * 1985-08-31 1987-06-02 Norddeutsche Affinerie Aktiengesellschaft Cathode for use in the electrolytic refining of copper and method of making same
US5368714A (en) * 1992-04-20 1994-11-29 Mitsubishi Materials Corporation Edge protector for electrolytic electrode, spreader bar thereof and method of attaching same to electrolytic electrode
US5470450A (en) * 1992-04-20 1995-11-28 Mitsubishi Materials Corporation Edge protector for electrolytic electrode, and spreader bar
US5549801A (en) * 1995-09-25 1996-08-27 Quadna, Inc. Edge strip for electrolytic-cell electrode
US5690798A (en) * 1996-02-26 1997-11-25 Quadna, Inc. Corner protector for electrowinning electrode
WO1998035073A1 (fr) * 1997-02-07 1998-08-13 R.E. Darling Company, Inc. Protege-arete pour plaques de raffinage
US5865967A (en) * 1996-02-21 1999-02-02 Nippon Mining & Metals Co., Ltd. Cathode plate used for hydro-electro-winning or electro-refining
US6231730B1 (en) * 1999-12-07 2001-05-15 Epvirotech Pumpsystems, Inc. Cathode frame
WO2005026413A1 (fr) * 2003-09-15 2005-03-24 Outokumpu Technology Oy Electrode a utiliser dans le cadre d'un raffinage electrolytique et procede pour la produire
WO2010037909A1 (fr) * 2008-10-01 2010-04-08 Outotec Oyj Cathode permanente
WO2021097586A1 (fr) * 2019-11-21 2021-05-27 Yanez Castaneda Percy Danilo Système et dispositif protecteur d'électrodes, anti-salissures et anticorrosion

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980548A (en) * 1972-10-26 1976-09-14 The Dowa Mining Co., Ltd. Automatic apparatus for stripping deposited metal from a cathode plate in electrowinning process
US4040937A (en) * 1974-12-28 1977-08-09 Ryozo Iijima Mother blank for producing starting sheets used in electrolytic non-ferrous metal production
US4406769A (en) * 1980-07-26 1983-09-27 Peter Berger Electrode edge protector, electrode provided with such protector and electrodeposits and/or products of electrolysis manufactured by employing such electrodes
EP0082221A1 (fr) * 1981-12-23 1983-06-29 Peter Berger Protection d'arête d'électrode, électrode ainsi protégée
US4670124A (en) * 1985-08-31 1987-06-02 Norddeutsche Affinerie Aktiengesellschaft Cathode for use in the electrolytic refining of copper and method of making same
US5368714A (en) * 1992-04-20 1994-11-29 Mitsubishi Materials Corporation Edge protector for electrolytic electrode, spreader bar thereof and method of attaching same to electrolytic electrode
US5470450A (en) * 1992-04-20 1995-11-28 Mitsubishi Materials Corporation Edge protector for electrolytic electrode, and spreader bar
DE4312798C2 (de) * 1992-04-20 2002-05-29 Mitsubishi Materials Corp Kantenschutzvorrichtung für eine Elektrode, Verfahren zum Befestigen derselben an der Elektrode
CN1042044C (zh) * 1992-04-20 1999-02-10 三菱麻铁里亚尔株式会社 电解电极的边缘保护器、其扩张棒及其与电极的连接方法
US5549801A (en) * 1995-09-25 1996-08-27 Quadna, Inc. Edge strip for electrolytic-cell electrode
US5865967A (en) * 1996-02-21 1999-02-02 Nippon Mining & Metals Co., Ltd. Cathode plate used for hydro-electro-winning or electro-refining
US5690798A (en) * 1996-02-26 1997-11-25 Quadna, Inc. Corner protector for electrowinning electrode
WO1998035073A1 (fr) * 1997-02-07 1998-08-13 R.E. Darling Company, Inc. Protege-arete pour plaques de raffinage
US6231730B1 (en) * 1999-12-07 2001-05-15 Epvirotech Pumpsystems, Inc. Cathode frame
WO2005026413A1 (fr) * 2003-09-15 2005-03-24 Outokumpu Technology Oy Electrode a utiliser dans le cadre d'un raffinage electrolytique et procede pour la produire
WO2010037909A1 (fr) * 2008-10-01 2010-04-08 Outotec Oyj Cathode permanente
CN102171385A (zh) * 2008-10-01 2011-08-31 奥图泰有限公司 永久阴极
US8551306B2 (en) 2008-10-01 2013-10-08 Outotec Oyj Permanent cathode
EA019462B1 (ru) * 2008-10-01 2014-03-31 Ототек Оюй Нерасходуемый катод
EP2329061A4 (fr) * 2008-10-01 2014-10-15 Outotec Oyj Cathode permanente
WO2021097586A1 (fr) * 2019-11-21 2021-05-27 Yanez Castaneda Percy Danilo Système et dispositif protecteur d'électrodes, anti-salissures et anticorrosion
US20230284398A1 (en) * 2019-11-21 2023-09-07 Percy Danilo YÁÑEZ CASTAÑEDA System and anti-splash, anticorrosive electrode-protecting device

Also Published As

Publication number Publication date
ZM16372A1 (en) 1973-08-21
JPS4847803U (fr) 1973-06-23
JPS514964Y2 (fr) 1976-02-12
SU627763A3 (ru) 1978-10-05

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