Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1995-03-29
1996-07-09
Gorgos, Kathryn
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204263, 204275, 204278, C25B 900
Patent
active
055341225
ABSTRACT:
A chlor-alkali diaphragm electrolysis cell comprising pairs of interleaved cathodes (C) and anodes (B), said cathodes having surfaces with openings and are provided with porous corrosion resistant diaphragms, said cell further comprising feed brine inlets and outlets (H, I, L) for the removal of produced chlorine, hydrogen and caustic, said anodes (B) are expanded by internal extenders (F) and have electrode surfaces with openings for releasing produced gaseous chlorine, characterized in that each of said expanded anodes (B) comprises a plurality of pressing means (O,Q) made of corrosion resistant material having elastic properties to maintain the electrode surfaces of the anodes against the diaphragm and said pressing means are longitudinally positioned inside the anodes having very low operating voltages.
REFERENCES:
patent: 3674676 (1972-07-01), Fogelman
patent: 4444632 (1984-04-01), de Nora
patent: 4448664 (1984-05-01), Ikegami et al.
patent: 5066378 (1991-11-01), Meneghini
patent: 5221452 (1993-06-01), Nakao et al.
Modern Chlor-Alkali Technology; Society of Chemical Industry, London, 1980.
Meneghini Giovanni
Traini Carlo
De Nora Permelec S.p.A.
Gorgos Kathryn
Muserlian Charles A.
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