Krupp Uhde Gmbh

Uhdenora Technologies S.r.l.

Uhdenora S.p.a.

Martin Wollny

Karl-Heinz Dulle

J&uuml;rgen Gegner

Thomas Borucinski

Peter Woltering

Randolf Kiefer

Frank Funck

Karl Heinz Dulle

Roland Beckmann

Thomas Steinmetz

Kosmas Janowitz

Torsten Dresel

Hans-Joachim Hartz

The invention relates to an electrolysis device for halogen gas production from an aqueous alkali halide solution in several plate-type electrolysis cells stacked and arranged side by side, with electrical contacts, each of the cells with a housing consisting of two half-shells made of electrically conductive material, said housing being equipped with devices for feeding electrolytic current and the electrolysis plant reactants and devices for discharging electrolytic current and discharging the electrolysis products, with anodic electrode, cathodic electrode and a membrane arranged therebetween, built-in components being fitted in at least one of the two half-shells and permitting a defined increase in the liquid level and thus minimizing the remaining gas volume accordingly. The built-in components are arranged in such a manner that they form an internal trough parallel to the said membrane and arranged horizontally, an interspace thus being provided between the trough and the membrane and an interspace between the trough and the electrolysis chamber, a part of which is located above the membrane, said trough having at least one opening communicating with the interspace between said trough and the upper side of the electrolytic chamber, and at least one outlet.

Electrolytic cell comprising an interior trough

Electrolysis apparatus for producing halogen gases

When applied to an electrolyser for producing halogen gases from aqueous alkali halogenide solution using several plate-like electrolysis cells arranged side by side in a stack whilst electrically connected, each cell being encased in two semi-shells made from electroconductive material with contact strips on the outer side of at least one of the casing's rear walls, the anode and the cathode being separated from one another by a partition, arranged parallel to one another and electrically connected to the rear wall of the respective casing via metal reinforcements, the current-carrying surface should be as large as possible to avoid uneven current distribution. This is achieved by the fact that the metal reinforcements are in the form of solid plates (,) which are flush with the contact strips (,) and whose side edges run up the entire height of the rear wall (,A,,A) and the anode (,) or cathode (,).

Electrolysis apparatus and process for manufacturing same

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Witten, Germany

Martin Wollny