DE818798C - Diaphragm for electrolytic cells, especially for water decomposers - Google Patents

Diaphragm for electrolytic cells, especially for water decomposers

Info

Publication number
DE818798C
DE818798C DEP2375A DEP0002375A DE818798C DE 818798 C DE818798 C DE 818798C DE P2375 A DEP2375 A DE P2375A DE P0002375 A DEP0002375 A DE P0002375A DE 818798 C DE818798 C DE 818798C
Authority
DE
Germany
Prior art keywords
rubber
diaphragm
diaphragm according
fabric
electrolytic cells
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
DEP2375A
Other languages
German (de)
Inventor
Paul Sernitz
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.)
Demag Elektrometallurgie GmbH
Original Assignee
Demag Elektrometallurgie 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 Demag Elektrometallurgie GmbH filed Critical Demag Elektrometallurgie GmbH
Priority to DEP2375A priority Critical patent/DE818798C/en
Application granted granted Critical
Publication of DE818798C publication Critical patent/DE818798C/en
Expired legal-status Critical Current

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
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • C25B13/08—Diaphragms; Spacing elements characterised by the material based on organic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Description

Diaphragma für elektrolytische Zellen, insbesondere für Wasserzersetzer Die bekannten Diaphragmen für elektrolytische Zellen, insbesondere für Wasserzersetzer, bestehen aus Asbestgeweben. Neuerdings ist man dazu übergegangen, die Diaphragmen aus Kunststoffgeweben, z. B. aus Polyvinylchlorid, herzustellen. Diese Diaphragmen haben den Nachteil, daß sie bei den in Wasserzersetzern vorkommenden Temperaturen nicht mehr beständig sind und Formveränderungen durch Schrumpfen erleiden.Diaphragm for electrolytic cells, in particular for water decomposers The well-known diaphragms for electrolytic cells, especially for water decomposers, consist of asbestos fabrics. Recently there has been a move to the diaphragms made of plastic fabrics, e.g. B. made of polyvinyl chloride. These diaphragms have the disadvantage that they are at the temperatures occurring in water disintegrators are no longer stable and suffer changes in shape due to shrinkage.

Es ist ferner vorgeschlagen worden, reines Metallgewebe, insbesondere Nickelgewebe, für die Diaphragmen zu verwenden. Da diese elektrisch leitend sind, können sie leicht zum Kurzschluß oder zu unerwünschter Polarisation bzw. Gasentladung führen.It has also been proposed to use pure metal mesh, in particular Nickel mesh to be used for the diaphragms. Since these are electrically conductive, they can easily lead to a short circuit or to undesired polarization or gas discharge to lead.

Die Erfindung betrifft ein Diaphragma aus Gummi. Dieser Werkstoff hat in Wasserzersetzern bereits Anwendung als Dichtungsmaterial gefunden und sich dabei bewährt, d. h. der Gummi hat sich als beständig gegenüber den auftretenden Temperaturen gezeigt und hat chemisch in keiner Weise den Zersetzungsprozeß bzw. die dabei verwendeten Elektroden ungünstig beeinflußt. Das Diaphragma kann dabei erfindungsgemäß aus einer porösen schwammigen Gummischicht bestehen, oder es kann ein Gummigewebe verwendet werden. Dabei können je nach den Erfordernissen die Gewebefäden aus porösem oder aufgerauhtem Gummi bestehen, oder die einzelnen Gewebefäden können aus feinen Gummifäden, die gebündelt, verdrillt oder verzwirnt sind, zusammengesetzt sein.The invention relates to a diaphragm made of rubber. This material has already found application as a sealing material in water decomposers and has itself proven thereby, d. H. the rubber has proven to be resistant to the occurring Temperatures and has in no way chemically influenced the decomposition process or adversely affects the electrodes used. The diaphragm can thereby according to the invention consist of a porous spongy rubber layer, or it can a rubber fabric can be used. Depending on the requirements, the fabric threads consist of porous or roughened rubber, or the individual fabric threads can composed of fine rubber threads that are bundled, twisted or twisted together be.

Um die gewollte Wirkung der Durchlässigkeit für Flüssigkeit und des Sperrens gegen Gasblasen zu erhöhen, kann man im Sinne der Erfindung auch mehrere Gummischichten übereinander anordnen. Sollten während des Zersetzungsprozesses Schwingungen in dem so aufgebauten Diaphragma auftreten, so kann man auch so vorgehen, daß jeweils zwischen zwei Gummigewebeschichten ein Metalldiaphragma angeordnet wird, das dadurch zugleich genügend isoliert ist. Die im Sinne der Erfindung hergestellten Gummigewebe werden zweckmäßig am Rande mit einem Gummiwulst versehen, um die Befestigung des Diaphragmas zu erleichtern. Dabei kann dieser Gummiwulst zugleich abdichtend wirken.To the intended effect of the permeability for liquid and des To increase blocking against gas bubbles, one can also several within the meaning of the invention Arrange rubber layers on top of each other. Should vibrate during the decomposition process occur in the diaphragm constructed in this way, one can proceed in such a way that in each case between two layers of rubber fabric a metal diaphragm is arranged, which thereby at the same time is sufficiently isolated. The rubber fabrics produced within the meaning of the invention are Appropriately provided with a rubber bead on the edge to secure the diaphragm to facilitate. This rubber bead can have a sealing effect at the same time.

Claims (1)

PATENTANSPRÜCHE: i. Diaphragma für elektrolytische Zellen, insbesondere für Wasserzersetzer, dadurch gekennzeichnet, daß es aus Gummi besteht. a. Diaphragma nach Anspruch i, dadurch gekennzeichnet, daß es aus einer zusammenhängenden porösen Gummimasse besteht. 3. Diaphragma nach Anspruch i, dadurch gekennzeichnet, daß es aus einem Gewebe aus Gummi besteht. d.. Diaphragma nach Anspruch 3, dadurch gekennzeichnet, daß die Gewebefäden aus porösem Gummischwamm bestehen. 5. Diaphragma nach Anspruch 3, dadurch gekennzeichnet, daß die Gummifäden aus außen aufgerauhtem Gummi bestehen. 6. Diaphragma nach Anspruch 3 bis 5, dadurch gekennzeichnet, daß die Gewebefäden aus vorzugsweise verdrillten bzw. verzwirnten Einzelfäden bestehen. 7. Diaphragma nach Anspruch i bis 6, dadurch gekennzeichnet, daß mehrere Gummischichten übereinander angeordnet sind. B. Diaphragma nach Anspruch i bis 7, dadurch gekennzeichnet, daß ein mit Gummigewebeschichten ein- oder doppelseitig überzogenes Metalldiaphragma verwendet wird. g. Diaphragma nach Anspruch i bis 8, dadurch gekennzeichnet, daß es an den Kanten einen Gummiwulst aufweist. PATENT CLAIMS: i. Diaphragm for electrolytic cells, in particular for water decomposers, characterized in that it consists of rubber. a. Diaphragm according to claim i, characterized in that it consists of a coherent porous rubber mass. 3. Diaphragm according to claim i, characterized in that it consists of a fabric made of rubber. d .. Diaphragm according to claim 3, characterized in that the fabric threads consist of porous rubber sponge. 5. Diaphragm according to claim 3, characterized in that the rubber threads consist of rubber roughened on the outside. 6. Diaphragm according to claim 3 to 5, characterized in that the fabric threads consist of preferably twisted or twisted individual threads. 7. Diaphragm according to claim i to 6, characterized in that several rubber layers are arranged one above the other. B. Diaphragm according to claim i to 7, characterized in that a metal diaphragm coated with rubber fabric layers on one or both sides is used. G. Diaphragm according to Claims 1 to 8, characterized in that it has a rubber bead on the edges.
DEP2375A 1949-03-29 1949-03-29 Diaphragm for electrolytic cells, especially for water decomposers Expired DE818798C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP2375A DE818798C (en) 1949-03-29 1949-03-29 Diaphragm for electrolytic cells, especially for water decomposers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2375A DE818798C (en) 1949-03-29 1949-03-29 Diaphragm for electrolytic cells, especially for water decomposers

Publications (1)

Publication Number Publication Date
DE818798C true DE818798C (en) 1951-10-29

Family

ID=7357951

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP2375A Expired DE818798C (en) 1949-03-29 1949-03-29 Diaphragm for electrolytic cells, especially for water decomposers

Country Status (1)

Country Link
DE (1) DE818798C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051820B (en) * 1955-11-11 1959-03-05 Ruhrchemie Ag Process for the enrichment of heavy water
DE1094829B (en) * 1957-02-23 1960-12-15 Yardney International Corp Separator for accumulators, especially for silver-zinc accumulators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051820B (en) * 1955-11-11 1959-03-05 Ruhrchemie Ag Process for the enrichment of heavy water
DE1094829B (en) * 1957-02-23 1960-12-15 Yardney International Corp Separator for accumulators, especially for silver-zinc accumulators

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