EP0017188A1 - Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore - Google Patents
Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore Download PDFInfo
- Publication number
- EP0017188A1 EP0017188A1 EP80101671A EP80101671A EP0017188A1 EP 0017188 A1 EP0017188 A1 EP 0017188A1 EP 80101671 A EP80101671 A EP 80101671A EP 80101671 A EP80101671 A EP 80101671A EP 0017188 A1 EP0017188 A1 EP 0017188A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bridge
- anode
- copper bolt
- copper
- thread
- 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
Links
Images
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 which are welded to the titanium anode surface and which are in turn welded to a bridge of titanium with an even larger cross-section.
- the current is usually supplied via copper bolts which are connected to the bridge in a manner that is perpendicular to the titanium structure.
- 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.
- DOS 2 031 525 it is proposed, for example, to establish the electrical contact between the copper bolt and the bridge of the titanium structure via a low-melting metal alloy which is liquid under the operating conditions of the electrolysis cell.
- the Mechanic connection will be there additionally guaranteed 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.
- DOS 27 17 931 it is proposed to place a cone at the lower end of the copper bolt that fits into a hollow cone of the bridge, and to screw the bridge and copper bolt together by means of a screw that engages in a threaded hole in the copper bolt.
- 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 by 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)
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 true EP0017188A1 (fr) | 1980-10-15 |
EP0017188B1 EP0017188B1 (fr) | 1983-01-12 |
Family
ID=6067933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80101671A Expired EP0017188B1 (fr) | 1979-04-10 | 1980-03-28 | Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore |
Country Status (7)
Country | Link |
---|---|
US (1) | US4323438A (fr) |
EP (1) | EP0017188B1 (fr) |
CA (1) | CA1157810A (fr) |
DE (2) | DE2914414A1 (fr) |
IN (1) | IN153771B (fr) |
NO (1) | NO153307C (fr) |
PL (1) | PL123695B1 (fr) |
Families Citing this family (5)
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 |
Citations (6)
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 |
US3455810A (en) * | 1965-02-04 | 1969-07-15 | Uddeholms Ab | Fastening means for an electrode in a so-called horizontal electrolytic cell |
GB1168298A (en) * | 1965-11-08 | 1969-10-22 | Uhde Gmbh Friedrich | Electrolytic Cell |
AT278047B (de) * | 1966-12-28 | 1970-01-26 | Great Lakes Carbon Corp | Elektrische Verbindung zwischen einem elektrisch leitfähigen Element und einem Kohlekörper und Verfahren zur Herstellung einer solchen Verbindung |
DE2046479B2 (de) * | 1969-09-22 | 1973-03-08 | Fa Progil, Paris | Anodenanordnung in einer elektrolysezelle |
DE2445570A1 (de) * | 1973-10-19 | 1975-04-30 | Solvay | Elektrolysezelle mit vertikalen elektroden |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1267993A (en) * | 1969-04-28 | 1972-03-22 | Marston Excelsior Ltd | Improvements in or relating to electrodes |
GB1304518A (fr) * | 1969-06-27 | 1973-01-24 | ||
US3912616A (en) * | 1973-05-31 | 1975-10-14 | Olin Corp | Metal anode assembly |
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 |
-
1979
- 1979-04-10 DE DE19792914414 patent/DE2914414A1/de not_active Withdrawn
-
1980
- 1980-03-05 IN IN156/DEL/80A patent/IN153771B/en unknown
- 1980-03-21 US US06/132,564 patent/US4323438A/en not_active Expired - Lifetime
- 1980-03-27 NO NO800890A patent/NO153307C/no unknown
- 1980-03-28 DE DE8080101671T patent/DE3061573D1/de not_active Expired
- 1980-03-28 EP EP80101671A patent/EP0017188B1/fr not_active Expired
- 1980-04-08 PL PL1980223327A patent/PL123695B1/pl unknown
- 1980-04-08 CA CA000349318A patent/CA1157810A/fr not_active Expired
Patent Citations (6)
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 |
US3455810A (en) * | 1965-02-04 | 1969-07-15 | Uddeholms Ab | Fastening means for an electrode in a so-called horizontal electrolytic cell |
GB1168298A (en) * | 1965-11-08 | 1969-10-22 | Uhde Gmbh Friedrich | Electrolytic Cell |
AT278047B (de) * | 1966-12-28 | 1970-01-26 | Great Lakes Carbon Corp | Elektrische Verbindung zwischen einem elektrisch leitfähigen Element und einem Kohlekörper und Verfahren zur Herstellung einer solchen Verbindung |
DE2046479B2 (de) * | 1969-09-22 | 1973-03-08 | Fa Progil, Paris | Anodenanordnung in einer elektrolysezelle |
DE2445570A1 (de) * | 1973-10-19 | 1975-04-30 | Solvay | Elektrolysezelle mit vertikalen elektroden |
Also Published As
Publication number | Publication date |
---|---|
NO153307B (no) | 1985-11-11 |
NO153307C (no) | 1986-02-19 |
PL223327A1 (fr) | 1981-01-16 |
NO800890L (no) | 1980-10-13 |
US4323438A (en) | 1982-04-06 |
CA1157810A (fr) | 1983-11-29 |
DE2914414A1 (de) | 1980-10-23 |
PL123695B1 (en) | 1982-11-30 |
DE3061573D1 (en) | 1983-02-17 |
IN153771B (fr) | 1984-08-18 |
EP0017188B1 (fr) | 1983-01-12 |
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