Membrane seal for electrolysis plate and frame assemblies
AssigneeBayer Aktiengesellschaft
InventorsKarl-Josef Schwickart, Lothar Sesterhenn
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Abstract
In a hydrochloric acid electrolysis plate and frame assembly comprising a graphite plate and a frame about said plate so as to provide a gas tight seal while maintaining a sliding fit, the improvement which comprises a tension-free membrane seal fastened to the frame and to the plate across the space where sliding movement therebetween can occur. The membrane advantageously comprises a fabric or film of polyvinyl chloride, polypropylene or a poly-fluoroolefin and is fastened to at least one of said frame and plate by being cemented or bonded. An additional resilient seal such as asbestos fibers may be provided in the space between said plate and frame which space changes in size upon sliding between said plate and frame.
Claims6
In a hydrochloric acid electrolysis plate and frame assembly comprising a graphite plate and a frame about said plate so as to provide a gas tight seal while maintaining a sliding fit, the improvement which comprises a tension-free membrane seal fastened to the frame and to the plate across the the space where sliding movement therebetween can occur.
Dependencies are inferred from the claim text.