EP0017188B1 - Anode für die Alkalichlorid-Elektrolyse und Verfahren zur Herstellung von Chlor - Google Patents

Anode für die Alkalichlorid-Elektrolyse und Verfahren zur Herstellung von Chlor Download PDF

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Publication number
EP0017188B1
EP0017188B1 EP80101671A EP80101671A EP0017188B1 EP 0017188 B1 EP0017188 B1 EP 0017188B1 EP 80101671 A EP80101671 A EP 80101671A EP 80101671 A EP80101671 A EP 80101671A EP 0017188 B1 EP0017188 B1 EP 0017188B1
Authority
EP
European Patent Office
Prior art keywords
anode
bridge
copper bolt
conical
titanium
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
EP80101671A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0017188A1 (de
Inventor
Lothar Dipl.-Ing. Sesterhenn
Milorad Tomic
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of EP0017188A1 publication Critical patent/EP0017188A1/de
Application granted granted Critical
Publication of EP0017188B1 publication Critical patent/EP0017188B1/de
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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous

Definitions

  • Titanium anodes consist of a lattice-shaped or reticular titanium anode surface, which is arranged opposite and parallel to the mercury cathode and immersed in the electrolyte, which overlays the mercury cathode. Titanium anodes also consist of cross conductors of larger cross-section welded firmly to the titanium anode surface, which in turn are welded with a bridge of even larger cross-section made of titanium.
  • the current is usually supplied via copper bolts which are arranged perpendicular to the titanium structure and conductively connected to the bridge.
  • a problem is the attachment of the copper bolts to the bridge of the titanium structure.
  • the connection between the titanium structure and the copper bolt is intended to be a good mechanical connection on the one hand, since the titanium structure is held by copper bolts and an adjustment that has been carried out over longer periods of time is to be guaranteed and on the other hand a good one to represent electrical contact.
  • the titanium structure should be detachable from the copper bolt without great effort and without damaging the contact surfaces, so that the titanium structure can be easily handled when the active layer of the titanium anode surface is replaced at regular intervals.
  • DE-A-2 031 525 e.g. B. proposed to produce the electrical contact between the copper bolt and the bridge of the titanium structure via a low-melting metal alloy that is liquid under operating conditions of the electrolytic cell.
  • the mechanical connection is also ensured by screwing.
  • the difficulties encountered with this proposal lie in the fact that such low-melting alloys generally do not wet titanium at the expense of good electrical contact and, moreover, the removal of the copper bolt is made more difficult.
  • the object of the present invention is therefore to provide an anode for alkali metal chloride electrolysis which avoids the disadvantages mentioned.
  • the present invention relates to an anode for the alkali metal chloride electrolysis according to the amalgam process, consisting of a lattice-shaped or reticular planar titanium anode surface, optionally current distribution rails, a bridge serving as a primary conductor rail and at least one copper bolt as a power supply, which is characterized in that the copper bolt has a thread in its lower region and is conical below the thread, the bridge has a threaded nut and a conical bore for receiving the conical region of the copper bolt, and the copper bolt and bridge are screwed together in a positive and non-positive manner.
  • the conical surfaces on the copper bolt and / or the bridge can be protected against corrosion by surface metallization.
  • surface metallization nickel or platinum layers are suitable.
  • the cone ratio of the cone is expediently between 1: 5 and 1:15, a cone ratio of about 1:10 is preferred.
  • the present invention furthermore relates to a process for the production of chlorine by electrolysis of alkali metal chloride using the anode according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
EP80101671A 1979-04-10 1980-03-28 Anode für die Alkalichlorid-Elektrolyse und Verfahren zur Herstellung von Chlor Expired EP0017188B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792914414 DE2914414A1 (de) 1979-04-10 1979-04-10 Anode fuer die alkalichlorid-elektrolyse und verfahren zur herstellung von chlor
DE2914414 1979-04-10

Publications (2)

Publication Number Publication Date
EP0017188A1 EP0017188A1 (de) 1980-10-15
EP0017188B1 true EP0017188B1 (de) 1983-01-12

Family

ID=6067933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101671A Expired EP0017188B1 (de) 1979-04-10 1980-03-28 Anode für die Alkalichlorid-Elektrolyse und Verfahren zur Herstellung von Chlor

Country Status (7)

Country Link
US (1) US4323438A (show.php)
EP (1) EP0017188B1 (show.php)
CA (1) CA1157810A (show.php)
DE (2) DE2914414A1 (show.php)
IN (1) IN153771B (show.php)
NO (1) NO153307C (show.php)
PL (1) PL123695B1 (show.php)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6103096A (en) * 1997-11-12 2000-08-15 International Business Machines Corporation Apparatus and method for the electrochemical etching of a wafer
US6106687A (en) * 1998-04-28 2000-08-22 International Business Machines Corporation Process and diffusion baffle to modulate the cross sectional distribution of flow rate and deposition rate
US6251251B1 (en) 1998-11-16 2001-06-26 International Business Machines Corporation Anode design for semiconductor deposition
US6113759A (en) * 1998-12-18 2000-09-05 International Business Machines Corporation Anode design for semiconductor deposition having novel electrical contact assembly
US6261426B1 (en) 1999-01-22 2001-07-17 International Business Machines Corporation Method and apparatus for enhancing the uniformity of electrodeposition or electroetching

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE542233C (de) * 1931-02-03 1932-01-21 Conradty Fa C In Zellen fuer waesserige Elektrolyse horizontal einzubauende Anodenplatte
SE307568B (show.php) * 1965-02-04 1969-01-13 Uddeholms Ab
DE1592044B2 (de) * 1965-11-08 1972-12-21 Friedrich Uhde Gmbh, 4600 Dortmund Elektrolysezelle
US3536460A (en) * 1966-12-28 1970-10-27 Great Lakes Carbon Corp Connections between electrical conductors and carbon bodies and method of making same
US3616445A (en) 1967-12-14 1971-10-26 Electronor Corp Titanium or tantalum base electrodes with applied titanium or tantalum oxide face activated with noble metals or noble metal oxides
DK119671B (da) 1968-12-23 1971-02-08 Nordisk Ventilator Skovlhjul til en centrifugalblæser.
GB1267993A (en) * 1969-04-28 1972-03-22 Marston Excelsior Ltd Improvements in or relating to electrodes
GB1304518A (show.php) * 1969-06-27 1973-01-24
BE756437A (fr) * 1969-09-22 1971-03-01 Progil Bac d'electrolyse avec nouvel ensemble anodique
US3912616A (en) * 1973-05-31 1975-10-14 Olin Corp Metal anode assembly
BE806280A (fr) * 1973-10-19 1974-02-15 Solvay Assemblage d'anodes pour une cellule d'electrolyse a electrodes verticales
DE2426674A1 (de) * 1974-06-01 1975-12-04 Bayer Ag Anoden fuer elektrolysezellen
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

Also Published As

Publication number Publication date
NO153307C (no) 1986-02-19
EP0017188A1 (de) 1980-10-15
PL223327A1 (show.php) 1981-01-16
US4323438A (en) 1982-04-06
DE3061573D1 (en) 1983-02-17
NO153307B (no) 1985-11-11
NO800890L (no) 1980-10-13
CA1157810A (en) 1983-11-29
PL123695B1 (en) 1982-11-30
IN153771B (show.php) 1984-08-18
DE2914414A1 (de) 1980-10-23

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