High voltage electrolytic cell
OwnerConstantinos D. Themyinventor
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Abstract
A novel electrode, an apparatus and a method are set out for electrolyzing a chloride ion containing aqueous solution to produce chlorine and ozone. Through utilization of a solid state rectifier network, and without the use of a transformer, full line voltage, after rectification, is applied between the anode and cathode of an electrolytic cell utilizing an anode which is a laminated body of a platinum group metal foil bonded to a tantalum or niobium layer which in turn is bonded to a titanium substrate. Chlorine and ozone production is quite rapid.
Claims10
An electrode useful for extended periods of time at voltages above 20 volts, comprising:
- a laminated body of a platinum group metal foil bonded to an intermediate layer of tantalum, niobium or alloys thereof, said intermediate layer being bonded to a substrate of titanium or alloys thereof, said platinum group metal being platinum, rhodium, iridium, ruthenium or alloys thereof, said laminated body having a first bonding alloy zone at at least most of an interface between said platinum group metal foil and said intermediate layer, a second bonding alloy zone at at least most of an interface between said intermediate layer and said substrate, and a smooth continuous outer surface on said platinum group metal foil which is substantially unaltered by said bonding alloy zones.
An apparatus for electrolyzing a chloride ion containing, and other halide ion substantially free, aqueous solution to produce chlorine, comprising:
- a vessel;
- a cathode in said vessel;
- an anode in said vessel, said anode comprising a laminated body of a platinum group metal bonded to an intermediate layer of tantalum, niobium or alloys thereof, said intermediate layer being bonded to a substrate of titanium and alloys thereof, said platinum group metal being platinum, rhodium, iridium, ruthenium, or alloys thereof, said laminated body having a first bonding alloy zone at at least most of an interface between said platinum group metal foil and said intermediate layer, a second bonding alloy zone at at least most of an interface between said intermediate layer and said substrate and a smooth continuous outer surface on said platinum group metal foil which is unaltered by said alloy zones;
- a rectifier circuit having a pair of AC inputs, a negative output, and a positive output;
- a pair of cell conductors, a first of which connects said negative output to said anode and a second of which connects said positive output to said cathode;
- an AC power source having a voltage of above about 20 volts;
- and
- a pair of AC conductors directly connecting said AC inputs to receive substantially the full AC voltage from said power source.
Dependencies are inferred from the claim text.