EP0036677B1 - Cellule d'électrolyse - Google Patents

Cellule d'électrolyse Download PDF

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Publication number
EP0036677B1
EP0036677B1 EP81200166A EP81200166A EP0036677B1 EP 0036677 B1 EP0036677 B1 EP 0036677B1 EP 81200166 A EP81200166 A EP 81200166A EP 81200166 A EP81200166 A EP 81200166A EP 0036677 B1 EP0036677 B1 EP 0036677B1
Authority
EP
European Patent Office
Prior art keywords
plates
anode
contact
electrolytic apparatus
electrolytic
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.)
Expired
Application number
EP81200166A
Other languages
German (de)
English (en)
Other versions
EP0036677A1 (fr
Inventor
Günther Haas
Ludolf Dr.- Dipl.-Ing. Plass
Karl Dipl.-Ing. Lohrberg
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to AT81200166T priority Critical patent/ATE5086T1/de
Publication of EP0036677A1 publication Critical patent/EP0036677A1/fr
Application granted granted Critical
Publication of EP0036677B1 publication Critical patent/EP0036677B1/fr
Expired 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
    • C25B9/63—Holders for electrodes; Positioning of the electrodes
    • 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

Definitions

  • the invention relates to an electrolytic cell, in which a number of parallel anodes and cathodes are arranged at a close distance and facing surfaces.
  • the electrolysis of alkali chloride solutions or acidic alkali sulfate solutions for the production of alkali chlorates or alkali persulfates is usually carried out in electrolysis cells, the cathodes of which are made of steel and the anodes of which are titanium, with an activating coating of the anodes with e.g. B. mixed oxides of platinum metals is common.
  • the anode material titanium is used to transport electricity, while the activating coating serves to lower the deposition voltage of the chlorine, which is equivalent to an energy saving.
  • the dimensioning of the anode material depends not only on the current density (kA / m 2 ), but also on the distance over which the current is to be transported in the anodes themselves.
  • the voltage drop in the anodes must be kept small compared to the voltage drop in the electrolyte. This results in the need for relatively large cross sections of the anode material.
  • the current transfer from the copper bolt via the internal thread of the threaded sleeve and the external thread of the sleeve to the threaded rings is also associated with losses.
  • the anode plates which are individually loosely pushed onto the current-carrying threaded sleeves, are fixed by means of individual threaded rings, which also act as spacers, and the contact is brought about by means of a press connection. This process is repeated until the desired number of anode plates is reached.
  • the current-carrying threaded sleeves can also have annular elevations of the same thickness as the anode plates.
  • the diameter of the ring is only slightly larger than the outer diameter of the threaded sleeve and only slightly smaller than the recess in the anode plate, so that there is an almost flush transition between the ring and anode plate, which is fixed by a welded connection.
  • the invention is based on an electrolysis device with cell spaces through which the electrolyte flows, in which anodes are arranged as plate packs via current-carrying center bolts between two cathode plate packs, and the mutually offset electrode plates each protrude into the opposite-pole plate columns.
  • the invention consists in the fact that the central bolt has contact tabs which are offset with respect to one another in its longitudinal direction for fastening the anode plates.
  • the contact tabs for example of a size of 20 x 10 x 10 mm, are mounted on the titanium jacket of the central bolt in the longitudinal direction at an angle of at least 90 ° and expediently offset by approximately 180 °, in particular welded.
  • the anode plates In order to attach the anode plates to the contact tabs in the simplest and most easily replaceable manner, they have at least one opening.
  • the opening or the openings are expediently round holes, in particular the holes are designed as bores with an internal thread.
  • the anode plates to be attached to the contact plates have corresponding openings, so that the intimate connection of the anode plate to the contact plates is easily made possible, for example, by screwing.
  • each anode plate has, for example, at least four bores in order to fasten or screw it over the at least four bores of the four contact tabs of the four bolts, which are located one above the other in a vertical plane.
  • the individual anode plates are rectangular and have on the vertical center line at least one and z. B. in the case of the four-bolt cell, four recesses. These recesses are designed as elongated holes, the long diameter running, for example, in the vertical center line of the anode plate and corresponding at least to the height of the contact tabs, while the short diameter has at least the diameter of the sheathed center bolt.
  • the individual anode plates are thus attached to four bolts penetrating the elongated holes equidistantly, four parallel to one another, parallel and perpendicular to the longitudinal axes of the bolts, as a result of which a compact anode package is constructed.
  • the cathode packages are also constructed from individual cathode plates in that they are equidistantly fastened vertically on one side of a carrier plate and parallel to one another.
  • the carrier plates also represent the side walls of the electrolytic cell housing. They are connected to the remaining parts of the cell housing in a liquid-tight but electrically insulated manner.
  • the power supply lines are attached to the outside of the carrier plates. All other parts of the cell housing are in electrical connection with the anode.
  • the material for all of the anode parts in contact with the electrolyte, in particular also the contact tabs of the present invention is titanium metal.
  • the surfaces on the contact tabs and on the anodes used for the current transfer are provided with a highly conductive platinum coating.
  • the remaining surfaces of the anode plates are coated on one or both sides with a conventional activation application, i. H. the effective surface has a coating of mixed oxides of platinum metals, such as ruthenium and rhodium oxide in particular.
  • the power supply pin is a composite material made of a copper core with a titanium casing.
  • the coated copper core is equipped with a detachable thread at one end, which is used to attach it to the inner wall of the housing via an annular flange.
  • a screw body made of copper with its threaded part is screwed into this thread through a corresponding recess in the support wall. The free end of the screw body is connected to the positive pole of a voltage source via a power supply.
  • the assembly of the anode package is carried out in such a way that the anode plates are guided by means of the recessed elongated holes over the center bolts and the staggered contact tabs by means of a reciprocating movement and are screwed to the contact tabs after the corresponding fastening position has been reached. After screwing, the further plates are installed in the same way until the desired number of anode plates is lined up and connected.
  • the center anode package is first attached to a supporting grid. Then the cathodes are attached to the removed side walls of the cell housing. Finally, the cathodes together with the side walls are inserted as packages in a horizontal direction so that the anode and cathode are opposite each other in the cell.
  • the electrolysis device according to the invention can advantageously be used in those electrolysis processes which are used to produce alkali chlorate by electrolytic decomposition of aqueous alkali chloride solutions.
  • the center bolt is formed from the copper core 1 with the titanium sheath 2 drawn on. With 3 on the titanium jacket 2 welded contact tabs made of titanium are designated.
  • the contact tabs 3 have at least one bore 5, through which the anode plates (not shown) are screwed to the contact tab. At least the contact surface of the contact tab 3 carries a platinum layer 4.
  • 6 denotes an annular flange welded onto the titanium jacket 2 with bores 5 for fastening the anode.
  • plate and holes 7 for attaching the flange to the inner wall of the housing. 8 is the platinum layer of the flange 6.
  • the threaded part 10 of the screw body 11 is screwed into the threaded hole 9 of the copper core 1.

Landscapes

  • 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 Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Claims (6)

1 Installation d'electrolyse comprenant des celluies parcourues par de I électrolyte, dans lesquelles des anodes sous forme de paquets de plaques sont interposées par I intermedialre d'axes médians d'alimentaticn en courant eiec- trique entre deux paquets de piaques de cathode, les plaques d eiectrodes decalees les unes par rapport aux autres pénétrant tespecti- vement dans les intervalles de plaques de pôle opposé, caractérisée en ce que l'axe median présente des pattes de contact décalées les unes par rapport aux autres suivant sa direction lcngitudinale pour la fixation des plaques d'anodes.
2. Installation d'electrolvse suivant la revendi- cation 1, caractérisée en ce que es pattes de contact sont montees en étant décalées les unes par rapport aux autres d'un angle ae 18C° environ.
3 Installation d'electrolyse selon a revendication 1 ou 2. caracterisée en ce que les pattes de contact présentent respectivement au moins une ouverture. de préférence un alesage à taraudage
4. installation d'eiectrolyse suivant les revendications 1 a 3, caractérisée en ce que l'axe median est constitué d'un noyau en cuivre recouvert d'une enveloppe en titane.
5 Installation d'électrolyse suivant les revendications 1 a 4, caractérisée en ce que les pattes de contact sont en titane platiné.
6. Utilisation de l'installation d'électrolyse suivant les revendications 1 a 5, dans un procède de préparation de chlorates de métal alcalin par décomposition électrolytique de solutions aqueuses de chlorures de métal alcalin
EP81200166A 1980-03-26 1981-02-12 Cellule d'électrolyse Expired EP0036677B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200166T ATE5086T1 (de) 1980-03-26 1981-02-12 Elektrolysezelle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803011643 DE3011643A1 (de) 1980-03-26 1980-03-26 Elektrolysezelle
DE3011643 1980-03-26

Publications (2)

Publication Number Publication Date
EP0036677A1 EP0036677A1 (fr) 1981-09-30
EP0036677B1 true EP0036677B1 (fr) 1983-10-19

Family

ID=6098368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200166A Expired EP0036677B1 (fr) 1980-03-26 1981-02-12 Cellule d'électrolyse

Country Status (11)

Country Link
US (1) US4409086A (fr)
EP (1) EP0036677B1 (fr)
JP (1) JPS56146885A (fr)
AR (1) AR226717A1 (fr)
AT (1) ATE5086T1 (fr)
AU (1) AU550488B2 (fr)
BR (1) BR8101773A (fr)
CA (1) CA1156183A (fr)
DE (2) DE3011643A1 (fr)
MX (1) MX148982A (fr)
NZ (1) NZ196266A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11639131B2 (en) 2018-05-28 2023-05-02 Dometic Sweden Ab Awning assembly

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0194464U (fr) * 1987-12-14 1989-06-21
DE4025253C2 (de) * 1990-08-09 1994-06-01 Heraeus Elektrochemie Stromzuleiter für eine Elektrode
US5277776A (en) * 1990-08-09 1994-01-11 Heraeus Electrochemie Gmbh Power lead for an electrode
US5759363A (en) * 1995-06-05 1998-06-02 Rose; Millard F. Carrying device for electroplating and method for improving the delivery of current therein
US6117584A (en) * 1997-07-25 2000-09-12 3M Innovative Properties Company Thermal conductor for high-energy electrochemical cells
US5952815A (en) * 1997-07-25 1999-09-14 Minnesota Mining & Manufacturing Co. Equalizer system and method for series connected energy storing devices
US6099986A (en) 1997-07-25 2000-08-08 3M Innovative Properties Company In-situ short circuit protection system and method for high-energy electrochemical cells
US6100702A (en) * 1997-07-25 2000-08-08 3M Innovative Properties Company In-situ fault detection apparatus and method for an encased energy storing device
US6087036A (en) * 1997-07-25 2000-07-11 3M Innovative Properties Company Thermal management system and method for a solid-state energy storing device
US6146778A (en) 1997-07-25 2000-11-14 3M Innovative Properties Company Solid-state energy storage module employing integrated interconnect board
US6120930A (en) 1997-07-25 2000-09-19 3M Innovative Properties Corporation Rechargeable thin-film electrochemical generator
US6235425B1 (en) 1997-12-12 2001-05-22 3M Innovative Properties Company Apparatus and method for treating a cathode material provided on a thin-film substrate
JP4921432B2 (ja) * 2008-07-10 2012-04-25 エスペック株式会社 恒温恒湿装置
JP6189656B2 (ja) * 2013-06-14 2017-08-30 Ｋｙｂ株式会社 給電部材及びそれを備えた高速めっき装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1230728A (fr) * 1959-06-16 1960-09-19 Procédé et dispositif pour la préparation d'eau potable à partir d'eau brute insalubre
US3728245A (en) * 1971-01-13 1973-04-17 Cole Res Corp Apparatus for treating sewage
FR2160289A1 (en) * 1971-11-18 1973-06-29 Ugine Kuhlmann Corrosion-resistant anode assembly - with several plates on common electrically conductive support
US3984304A (en) * 1974-11-11 1976-10-05 Ppg Industries, Inc. Electrode unit
DE2645121C3 (de) * 1976-10-06 1979-10-11 Dipl.-Ing. Hanns Froehler Kg, 8023 Pullach Elektrolysezelle
US4325798A (en) * 1980-06-27 1982-04-20 Mack Michael H Self-energizing water treatment accessory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11639131B2 (en) 2018-05-28 2023-05-02 Dometic Sweden Ab Awning assembly

Also Published As

Publication number Publication date
CA1156183A (fr) 1983-11-01
AU6873681A (en) 1981-10-01
ATE5086T1 (de) 1983-11-15
NZ196266A (en) 1984-11-09
AU550488B2 (en) 1986-03-20
JPH0118157B2 (fr) 1989-04-04
JPS56146885A (en) 1981-11-14
EP0036677A1 (fr) 1981-09-30
MX148982A (es) 1983-08-03
AR226717A1 (es) 1982-08-13
DE3011643A1 (de) 1981-10-01
DE3161201D1 (en) 1983-11-24
US4409086A (en) 1983-10-11
BR8101773A (pt) 1981-09-29

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