Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1980-12-29
1983-03-29
Valentine, Donald R.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204279, 204290F, 204292, C25B 900, C25B 1110
Patent
active
043782868
ABSTRACT:
A filter press type electrolytic cell for the electrolysis of brine to produce chlorine and caustic includes a plurality of rectangular frames having U-shaped or channel-shaped walls, the open sides of each of which wall members face inwardly, and a downcomer tube in each frame for conducting product from near the top of the frame to the bottom thereof for withdrawal. The downcomer tubes are located near a framing side but are not within a framing channel. The openings of the framing walls are partially covered by cross members of the same material as the framing to improve the resistance thereof to distortion during closing of the cell. Utilization of the downcomer tubes, preferably of polytetrafluoroethylene for the catholyte compartment and titanium or titanium clad material for the anolyte compartment, allows the maintaining of the framing channel open so that inner walls thereof are electrolytically protected against corrosion. Otherwise, when enclosed or tubular framing members are employed inner wall portions thereof can become corroded after relatively short periods of use. The invention also relates to frames for use in filter press type electrolytic cells and to a method of electrolyzing, wherein such frames and cells may be employed.
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Eng Jeffrey D.
Eukunaga Tsujihiko
Harke Cyril J.
Mose Luciano
Schurig Helmuth
Gosz William G.
Occidental Chemical Corporation
Tao James F.
Valentine Donald R.
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