CH255873A - Bipolar electrolyser. - Google Patents
Bipolar electrolyser.Info
- Publication number
- CH255873A CH255873A CH255873DA CH255873A CH 255873 A CH255873 A CH 255873A CH 255873D A CH255873D A CH 255873DA CH 255873 A CH255873 A CH 255873A
- Authority
- CH
- Switzerland
- Prior art keywords
- channels
- electrodes
- gas
- liquor
- guide
- Prior art date
Links
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
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Degasification And Air Bubble Elimination (AREA)
Description
Zusatzpatent zum Haup@piatent Nr. 242830. Bipolar-Elektrolyseur. Eist bekannt, die Zellenspannung bei Bipolar-Elektrolyseuren dadurch zu verbes sern, dass die durch die aufsteigenden Gas blasen entstehende Zirkulation in der Zelle dureb. Einbau von Leitkanälen erhöht wird.
13f@on ders wirksam hat sich, eine Anordnung nach dem Patent Nr. 242830 gezeigt, bei welcher der Einbau von Leitblechen zw2- schen V orelektrodp lind Trennwand eine Zirkulation. quer zur Längsachse des Elek- ti olyscurs bewirkt.
Erfindungsgemäss kann diese Wirkung dadurch verstärkt werden, dass zwischen Vor- elektrade und Trennwand angeordnete Gas- auffanL hanäle mit Leitkanälen abwechseln, welche die entgaste Lauge nach unten füh ren. Vor7ugs,#veis:e haben die Kanäle, welche die entgaste Lauge na-eh unten führen, tra- pf,zfö rmigen Querschnitt und reichen nicht an die Vorelektrode heran.
Eine solche Zelle zeigt beispielsweise Fig. 1 der beiliegenden schematischen Zeich- nun.in Vorderansicht. Fig. 2 und 3 zeigen Schnitte nach der Linie A--4 bzw. B-B der F-. 1.. 1 ist der Zellenrahmen mit dem Diaphragma ?.
3 sind die Isolierdichtungen, 4 und 5 die Zellentrennwände, 6 und 7 die Gasableitungen und 8 und 9 die Vorelek- froden. 11 sind Kanäle, die aus trapezförmi- gen U-Schienen hergestellt sind und die ent- hastc. Lange nach unten weiterführen. Diese Schienen bilden auch die Kanäle 11', welche die aufsteigende, gashaltige Lauge zu den Gasa.bgängen führen.
Zwischen der U-Schiene und der Vorelektrode ist zweckmässigerweise ein Zwischenraum. Die Pfeile 12 geben die Zirkulation der Lauge durch die Kanäle 10 und 11 an. Die Pfeile 13 (Fib. 2) deuten die Zirkulation der Lauge durch die Vorelek- troden an.
Die Steilheit der Kanäle kann derart gewählt sein, dass die Kanäle im Grenzfall vertikal stehen, ohne am Prinzip der Anord nung zu ändern.
Additional patent to the main patent No. 242830. Bipolar electrolyzer. It is known that the cell voltage in bipolar electrolysers can be improved by allowing the circulation in the cell to occur due to the rising gas bubbles. Installation of guide channels is increased.
On the other hand, an arrangement according to patent no. 242830 has been shown to be effective, in which the installation of baffles between the front electrode and partition creates a circulation. caused transversely to the longitudinal axis of the electi olyscurs.
According to the invention, this effect can be enhanced by the fact that gas collection ducts arranged between the pre-electrade and the partition wall alternate with guide ducts that guide the degassed liquor downwards. The channels that carry the degassed liquor downwards have at the bottom have a trailing, z-shaped cross-section and do not come close to the pre-electrode.
Such a cell is shown, for example, in FIG. 1 of the accompanying schematic drawing in a front view. 2 and 3 show sections along the line A - 4 and B-B of the F -. 1 .. 1 is the cell frame with the diaphragm?
3 are the insulating seals, 4 and 5 are the cell partition walls, 6 and 7 are the gas discharge lines and 8 and 9 are the pre-electrodes. 11 are channels that are made from trapezoidal U-rails and that entrap. Continue down for a long time. These rails also form the channels 11 ', which lead the rising, gaseous liquor to the gas passages.
There is expediently a space between the U-rail and the pre-electrode. The arrows 12 indicate the circulation of the liquor through the channels 10 and 11. The arrows 13 (Fig. 2) indicate the circulation of the lye through the pre-electrodes.
The steepness of the channels can be selected such that the channels are vertical in the borderline case without changing the principle of the arrangement.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH255873T | 1946-12-13 | ||
CH242830T | 1946-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH255873A true CH255873A (en) | 1948-07-15 |
Family
ID=25728727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH255873D CH255873A (en) | 1946-12-13 | 1946-12-13 | Bipolar electrolyser. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH255873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4417960A (en) * | 1979-11-29 | 1983-11-29 | Oronzio De Nora Impianti Elettrochimici S.P.A. | Novel electrolyzer and process |
-
1946
- 1946-12-13 CH CH255873D patent/CH255873A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4417960A (en) * | 1979-11-29 | 1983-11-29 | Oronzio De Nora Impianti Elettrochimici S.P.A. | Novel electrolyzer and process |
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