GB1468382A - Bipolar electrode for a diaphragm type electrolyser - Google Patents

Abstract

1468382 Bi-polar electrode for diaphragm cells SOLVAY & CIE SA 5 July 1974 29899/74 Heading C7B A bi-polar electrode for a diaphragm electrolyzer producing chlorine comprises a vertical supporting wall 1, a plurality of vertical parallel spaced anode plates 3 transversely connected to the wall on one side thereof, and a plurality of vertical parallel spaced foraminous cathode fingers 7 transversely connected to the wall's opposite side, and alternating with the anode plates, wherein at least a portion of the wall comprises a plurality of vertical elongated metallic, e.g. steel, members 2, each preferably provided with one Fig. 3 or two Fig. 1 (not shown) vertical extensions 6, supporting the cathode fingers and extending each between two anode plates, the cathode fingers are in communication with one another through apertures, (11, 12) Fig. 2 (not shown) through the metallic members. The anode plates are preferably of Ti coated with Pt group metal or compound thereof. Each member 2 may comprise an inner axial plate 26 of the cathode finger carried by the member, e.g. on its extension 6; or the inner plate may extend between two successive anode plates Figs. 4 and 5 (not shown). The cathode fingers may be successively connected to each other by vertical side blades (9), (Figs. 1 and 5). A conductive and corrosion resistant cement (27) may be interposed between the anode plates 3 and members 2; sealing joints 5 may also be interposed in prologation of the plates 3. Members 2 e.g. of steel may have a protective coating (16) or concrete containing polyester.