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Heraeus Elektrochemie Gmbh

Magdeburger Energie - Und Umwelttechnik Gmbh

Heraeus Electrochemie Bitterfeld Gmbh

Bruno Klatt

Gerhard Krueger

Hans-Joachim Kuenne

Hartmut Koelling

Karlheinz Berndt

Lothar Backhauss

Manfred Horx

Lothar Moerl

Gunter Kreutzberger

Manfred Suchi

A fiber material of PTFE and, optionally, hydrophilizing additives, for use in the production of diaphragms for the electrolysis of alkali chlorides, as well as for filter layers. The fiber material comprises fiber bundles and these, in turn, comprise individual microfibrils, there being irregularly shaped interstices between the microfibrils. The fiber material is produced in that a PTFE dispersion, consisting of a salt solution with PTFE particles and, optionally, hydrophilizing additives, is treated in a hot gas/vapor stream in a fluidized bed apparatus charged with inert solids. The method permits the fiber material to be produced also in larger quantities in an economic manner.

Method for physically converting PTFE particles to fibers

PTFE fibre material and process for making it

In a monopolar electrolysis cell for chlor-alkali electrolysis by the diaphragm or membrane process, the cathodic and anodic electrode structures extend in the vertical direction, the anodic structure being surrounded by the cathodic electrode structure. In the area of the active electrode surfaces, an upward-directed flow of electrolyte-gas mixture is produced as a result of the gas bubbles generated electrolytically in the electrode gap, whereupon the electrolyte is then degassed. The degassed electrolyte, because of its higher specific gravity, then flows down through a flow channel inside the anodic electrode structure, this channel being formed by vertically oriented feed conductors and U-shaped flow guide plates.

Electrode structure for a monopolar electrolysis cell operating by the

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Wolfen, Germany

Bruno Klatt