C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/164
C25B 9/00 (2006.01) C25B 9/04 (2006.01) C25B 9/08 (2006.01) C25B 11/03 (2006.01)
Patent
CA 1053607
ABSTRACT OF THE DISCLOSURE A novel electrolytic cell comprising a novel cathode busbar structure, novel cathode fingers and a novel anode base structure which enable the novel electrolytic cell to be designed to operate as a chlor-alkali diaphragm cell at high current capacities of about 150,000 amperes and upward to about 200,000 amperes while maintaining high operating efficiencies. These high current capacities provide for high production capacities which result in high production rates for given cell room floor areas and reduce capital investment and operating costs. The cathode busbar structure comprises at least one lead-in busbar and a plurality of busbar strips which have different relative dimensions, and are fabricated from a highly conductive metal the cathode busbar structure is attached in electrical contact to at least one sidewall of a cathode walled enclosure fabricated from a conductive metal and having sidewalls, containing a plurality of cathode fingers. The cathode fingers comprise conductive reinforcing means, lengths of highly conductive metal positioned in the cathode finger structure, and foraminous conductive metal means attached to the reinforcing means thereby forming the exterior of the cathode finger structure and gas compartment space inside the cathode finger structure; cathode fingers extend substantially across the interior of the cathode walled enclosure and the cathode fingers are attached in electrical contact to at least one interior sidewall of the cathode walled enclosure the cathode busbar structure is attached in electrical contact to the exterior sidewall of the cathode walled enclosure on the sidewall adjacent to the attached cathode fingers. The anode base structure comprises a highly conductive metal means having a substantially flat and level surface and having a decreased cross-section as it extends away from the anode or intercell connecting busbar means to form the cross- sectional shape of a substantially stair-stepped truncated right triangle; the cathode busbar structure, cathode fingers and anode base structure each have a configuration so as to carry an electric current and to maintain a substantially uniform current density throughout without any significant voltage drop there across and with the most economical power consumption therein.
216830
Evans Leo G.
Ruthel Walter W.
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