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Elektrochemisches Verfahren und Vorrichtung zur Herstellung von Metallhydroxiden und/oder Metalloxidhydroxiden

Electrochemical process and device for the production of metal hydroxides and/or metal oxide hydroxides
 
: Bauer, B.; Menzel, T.

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Frontpage ()

DE 1994-4418440 A: 19940526
DE 1994-4418440 A: 19940526
EP 1995-918522 A: 19950511
EP 1995-918522 AW: 19950511
WO 1995-DE643 A: 19950511
DE 4418440 C1: 19950928
EP 715659 B1: 19991103
C25B0001
Deutsch
Patent, Elektronische Publikation
Fraunhofer IGB ()

Abstract
The invention relates to an electrochemical process for the production of metal hydroxides and/or metal oxide hydroxides comprising metal ions and hydroxide ions, and a device for the performance of the process. The metal hydroxide and/or metal oxide hydroxide is formed in the chamber K bordered on a cathode side by a bipolar diaphragm and the required hydroxide ions originated by means of the bipolar diaphragm, whereby the anion-selective layer is arranged on the anode side. The metal ions are either fed to the chamber K in the presence of an agent complexing the metal ions and located in the chamber K at a pH of greater than 7 or are formed in the chamber K. The device has a cylindrical head geometry with two electrodes followed by a tapered geometry.

: http://publica.fraunhofer.de/dokumente/PX-11768.html