Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1979-12-11
1982-08-10
Andrews, R. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204266, 204282, 204283, C25B 900
Patent
active
043436900
ABSTRACT:
A cell is provided having an anode and cathode separated by an ion permeable membrane or diaphragm wherein an electrode layer is bonded to or otherwise embedded in on at least one and usually to both sides of the membrane. Polarity is imparted to a bonded or embedded electrode by pressing a crinkled resiliently compressible fabric against the membrane carrying the electrode layer. This fabric is substantially coextensive with the electrode layer and is constructed so that when compressed it exerts a substantially uniform elastic reaction pressure against the membrane carrying the electrode layer or a pliable foraminous sheet, i.e. screen, interposed between the membrane carrying the electrode layer and the resiliently compressible fabric. The resiliently compressible fabric has the ability of also transmitting pressure laterally so that pressure applied may distribute across the entire area of the layer and tendency to have local areas of too low or too high pressure is minimized or reduced.
Chlorine or other halogen is produced by feeding an aqueous alkali metal halide or aqueous hydrogen halide to the anode chamber. Alkali is produced in the cathode chamber and withdrawn.
REFERENCES:
patent: 3379634 (1968-04-01), Rutkowski
patent: 3446725 (1969-05-01), Spengler et al.
patent: 3475302 (1969-10-01), Langer et al.
patent: 4024036 (1977-05-01), Nakamura et al.
patent: 4056452 (1977-11-01), Campbell
patent: 4057479 (1977-11-01), Campbell
patent: 4191618 (1980-03-01), Coker et al.
patent: 4253922 (1981-03-01), Welch
Andrews R. L.
Oronzio de Nora Impianti Elettrochimici S.p.A.
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