EP0436078A2 - Dispositif anodique pour cellule d'électrolyse - Google Patents

Dispositif anodique pour cellule d'électrolyse Download PDF

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Publication number
EP0436078A2
EP0436078A2 EP90119463A EP90119463A EP0436078A2 EP 0436078 A2 EP0436078 A2 EP 0436078A2 EP 90119463 A EP90119463 A EP 90119463A EP 90119463 A EP90119463 A EP 90119463A EP 0436078 A2 EP0436078 A2 EP 0436078A2
Authority
EP
European Patent Office
Prior art keywords
shaped part
anode
sleeve
socket
arrangement according
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.)
Granted
Application number
EP90119463A
Other languages
German (de)
English (en)
Other versions
EP0436078B1 (fr
EP0436078A3 (en
Inventor
Stefan Dr. Kotowski
Rüdiger Weinhardt
Gerhardt Dehm
Reinhardt Koch
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.)
De Nora Deutschland GmbH
Original Assignee
Heraeus Elektrochemie GmbH
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
Application filed by Heraeus Elektrochemie GmbH filed Critical Heraeus Elektrochemie GmbH
Priority to AT90119463T priority Critical patent/ATE99742T1/de
Publication of EP0436078A2 publication Critical patent/EP0436078A2/fr
Publication of EP0436078A3 publication Critical patent/EP0436078A3/de
Application granted granted Critical
Publication of EP0436078B1 publication Critical patent/EP0436078B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • 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
    • C25D17/12—Shape or form

Definitions

  • the invention relates to an anode arrangement with a plate-shaped anode made of valve metal with an active surface for electrolytic processes, in particular for the deposition of metal from metal ion-containing solution on a base which is connected to a current feeder made of valve metal.
  • electrolytic processes such as. B. the chlor-alkali electrolysis
  • the electrolytic galvanizing of steel strips or the chrome plating large currents up to 18,000 A / m2 must be evenly distributed over large electrode areas (in the steel strip galvanizing up to 4 m 2 and in the chlor-alkali industry up to 36m 2 ) will.
  • these electrode surfaces consist of segmented titanium plates, in the case of the chlor-alkali industry, wire mesh expanded metals or flat profiles are used, which are also segmented.
  • the current is from the outside via highly conductive metals, such as. B. copper, aluminum or steel fed into the electrolysis cell, a contact between these highly conductive metals and the material of the anode, which usually consists of titanium, must be made.
  • highly conductive metals such as. B. copper, aluminum or steel fed into the electrolysis cell
  • a titanium anode is connected to a copper power supply pin via a titanium connecting element which surrounds the lower end of the pin in a sleeve-like manner, the actual fixation between the power supply pin and the sleeve-like connecting element being achieved by pouring out metal.
  • the object of the invention is to ensure an inexpensive and functionally reliable power supply for an anode, wherein a material which is not stable in the electrolyte but is good electrical conductor should be used for the support of the anode.
  • steel is used as the material for the core of the carrier, while the sheath enveloping the carrier consists of titanium; the jacket is welded at the edge to the socket-shaped part of the power supply.
  • the current feeder composed of the socket-shaped and the sleeve-shaped part consists of titanium or a titanium-based alloy, wherein the contact surfaces of the sleeve-shaped and the socket-shaped part, which abut one another in the operating state, are platinized.
  • the sleeve-shaped and the sleeve-shaped part are detachably connected to one another.
  • Another advantage is the fact that both the power supply and the mechanical connection between the carrier and the anode are optimally and inexpensively solved.
  • a plate-shaped anode 1 made of titanium is connected on its rear side 2 via a titanium current lead 3 to a carrier 4, also shown in a partial section, which contains a plate-shaped core 5 made of steel, which is surrounded by a jacket 14 .
  • the current lead 3 consists of a sleeve-shaped part 6 made of titanium which is fastened to the anode 1 by ring-shaped welding and a socket-shaped part 7 which is inserted into an opening 8 of the core 5 and which is connected to the core by fastening is immovably connected by means of pins 9; countersunk screws are used as pins 9 according to FIG.
  • the platinized surfaces of these two parts 6, 7 of the power supply 3 are shown in more detail in Figure 2. From this figure is seen that the threaded recess 16 provided with a central sleeve-like part 6 is provided at its contact surface 11 with a platinum coating, the layer thickness / um is approximately 0.5.
  • the opposing contact surface 12 of the socket-shaped part 7 is also provided with a platinum coating in thickness of 0.5 / um, said sleeve-shaped portion 7 comprises a central bore for passage of a fastening element in the form of a titanium countersunk screw 10, as shown in Figure 1 is.
  • the countersunk screw 10 establishes an immovable connection between the sleeve-shaped part 6 and the socket-shaped part 7 and thus an immovable connection between the anode 1 and the carrier 4 by screwing in the threaded recess 16.
  • the core 5 of the carrier 4 is loosely encased in FIG. 1 by a jacket 14 made of titanium foil, which has two opposing openings in the region of the socket-shaped part 7, the edges 15 of which are gas and liquid-tight by welding to the socket-shaped part 7 on the surfaces thereof are connected.
  • the jacket 14 consists of an approximately 1 mm thick titanium foil. The circumferential welding points are designated with number 17.
  • the sleeve-shaped part 6 is firmly connected to the back 2 of the anode 1 by a circumferential weld connection.
  • the two adjacent contact surfaces 11, 12 are also provided with a platinum-coated surface, as explained with reference to FIGS. 1 and 2. The one shown in this figure
  • the arrangement permits particularly simple assembly, since the socket-shaped part 7 'can only be screwed into the core 5 as far as it will go.
  • the socket-shaped part 7' has depressions 22, into which cams of a gripping tool can be inserted for tightening.
  • the mechanical connection between the two parts 6 and 7 'of the power supply 3 takes place - as already explained with reference to FIG. 1 - by means of a countersunk screw 10 made of titanium, which is inserted after inserting and tightening the socket-shaped part 7' and with the threaded recess 16 in the sleeve-shaped Part 6 is screwed tight.
  • FIG. 4 schematically shows a cross section through an anode arrangement, the anode 1 being connected to the carrier 4 via a plurality of current feeders 3 each consisting of the sleeve-shaped part 6 and the socket-shaped part 7.
  • a plate-shaped anode 1 has, for example, a base area of 0.2 to 0.4 m 2 and a thickness in the range of 2 to 7 mm; it is firmly and mechanically connected to the carrier 4 via a large number of such current feeders.
  • the current feeders can, for example, be arranged in several rows parallel to one another. An anode 1 'adjacent to the anode 1 is only shown in fragments in order to simplify the illustration.
  • the connection of the power supply to the carrier 4 is carried out by one or more power supply bolts made of electrically highly conductive material, which are also provided with a titanium jacket.
  • the thickness of the plate-shaped carrier 4 is in the range from 20 to 60 mm; it is so large that the current fed from the outside into the carrier at a point is evenly distributed without any appreciable resistance losses; in addition, the plate has sufficient mechanical stability to support the anode surface, which usually consists of several anodes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)
EP90119463A 1989-12-04 1990-10-11 Dispositif anodique pour cellule d'électrolyse Expired - Lifetime EP0436078B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90119463T ATE99742T1 (de) 1989-12-04 1990-10-11 Anodenanordnung fuer elektrolytische zwecke.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940044 1989-12-04
DE3940044A DE3940044C2 (de) 1989-12-04 1989-12-04 Anodenanordnung für elektrolytische Prozesse

Publications (3)

Publication Number Publication Date
EP0436078A2 true EP0436078A2 (fr) 1991-07-10
EP0436078A3 EP0436078A3 (en) 1991-07-31
EP0436078B1 EP0436078B1 (fr) 1994-01-05

Family

ID=6394769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119463A Expired - Lifetime EP0436078B1 (fr) 1989-12-04 1990-10-11 Dispositif anodique pour cellule d'électrolyse

Country Status (6)

Country Link
US (1) US5135633A (fr)
EP (1) EP0436078B1 (fr)
JP (1) JP2604901B2 (fr)
AT (1) ATE99742T1 (fr)
DE (2) DE3940044C2 (fr)
ES (1) ES2047798T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0713932A1 (fr) 1994-11-29 1996-05-29 Heraeus Elektrochemie GmbH Electrode avec un corps en forme de plaque

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5277776A (en) * 1990-08-09 1994-01-11 Heraeus Electrochemie Gmbh Power lead for an electrode
JP3207909B2 (ja) * 1992-02-07 2001-09-10 ティーディーケイ株式会社 電気めっき方法および電気めっき用分割型不溶性電極
US5464519A (en) * 1993-12-02 1995-11-07 Eltech Systems Corporation Refurbished electrode having an inner plate and outer envelope electrode
JP3606932B2 (ja) * 1994-12-30 2005-01-05 石福金属興業株式会社 電解用複合電極
US5849164A (en) * 1996-06-27 1998-12-15 Eltech Systems Corporation Cell with blade electrodes and recirculation chamber
DE19648464C2 (de) * 1996-11-22 1999-04-22 Lpw Blasberg Anlagen Gmbh Verfahren zur vertikalen elektrolytischen Metallisierung von plattenförmigem Galvanisiergut und Vorrichtung zur Durchführung desselben
JPH11302900A (ja) * 1998-04-17 1999-11-02 Ishifuku Metal Ind Co Ltd 電解装置及びその組立て方法
CN100383287C (zh) * 2002-03-25 2008-04-23 株洲冶炼厂有色冶金设计研究院 一种可拆卸安装式锌电解槽边母线机构
US8038855B2 (en) 2009-04-29 2011-10-18 Freeport-Mcmoran Corporation Anode structure for copper electrowinning

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1290099A (fr) * 1969-06-25 1972-09-20
US4022679A (en) * 1973-05-10 1977-05-10 C. Conradty Coated titanium anode for amalgam heavy duty cells
US3970539A (en) * 1974-12-23 1976-07-20 Basf Wyandotte Corporation End connector for filter press cell
JPS53116279A (en) * 1977-03-23 1978-10-11 Toagosei Chem Ind Co Ltd Connecting constitution for electrode of bipolar electrolytic cell
DE2717931C3 (de) * 1977-04-22 1980-08-07 Heraeus-Elektroden Gmbh, 6450 Hanau Elektroden mit austauschbaren aktiven Flächen für Elektrolysezellen, vorzugsweise Chloralkalielektrolysezellen
US4121994A (en) * 1977-11-17 1978-10-24 Hooker Chemicals & Plastics Corp. Anode support means for an electrolytic cell
JPS5526063U (fr) * 1978-08-10 1980-02-20
JPS5831894U (ja) * 1981-08-27 1983-03-02 株式会社伊藤製作所 護符ケ−ス
DE3626206A1 (de) * 1986-08-01 1988-02-04 Conradty Metallelek Stromzuleitung fuer elektroden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0713932A1 (fr) 1994-11-29 1996-05-29 Heraeus Elektrochemie GmbH Electrode avec un corps en forme de plaque

Also Published As

Publication number Publication date
DE3940044C2 (de) 1994-08-11
JP2604901B2 (ja) 1997-04-30
DE3940044A1 (de) 1991-06-06
ES2047798T3 (es) 1994-03-01
EP0436078B1 (fr) 1994-01-05
JPH03183792A (ja) 1991-08-09
ATE99742T1 (de) 1994-01-15
EP0436078A3 (en) 1991-07-31
US5135633A (en) 1992-08-04
DE59004140D1 (de) 1994-02-17

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