Patent ID: 6214181
Filing Date: 2001-04-10
Classification: C25B

Abstract:
An ion exchange membrane electrolyzer for the electrolysis of aqueous solution of electrolytes, made of a plurality of elementary cells, each cell delimited by a pair of elements and a pair of peripheral gaskets having an ion exchange membrane positioned in-between each of said elements comprising:a pair of sheets provided with a peripheral flange suitable for housing the peripheral gaskets, a multiplicity of projections having a planar top, and vertical depressionsa support frame interposed between the flanges of the two sheetsconductive elements for the electrical connection of each projection of a sheet with the corresponding projection of the other sheetelongated tiles vertically positioned over the depressions to form downcoming ductsa baffle on the upper part of each sheet close but not in contact with the internal edge of the peripheral flange and provided with connection holes with each depression provided with the elongated tilea distributor for feeding the electrolyte aqueous solution positioned in the lower part of each sheet along the internal edge of the peripheral flangea vertical downcoming duct for the discharge of the exhausted aqueous solutions and of the electrolysis productsan expanded sheet or mesh connected to the planar surface of the projections of each sheet, said expanded sheet or mesh provided with an electrocatalytic film for the electrochemical reaction.