The temperature of the electrolyte in the cell of this invention preferably is controlled by the introduction and circulation of cooled electrolyte into the cell.
The electrolytic cell of the present invention may be operated at high current densities with low voltage and with high current efficiency. Thus, the cell may be operated at a current density of between about 25 to 1,000 amperes or more per square foot, so that a small compact cell is capable of a high production rate. The cell, when used in the electrolysis of aqueous sodium chloride solution to sodium chlorate, may be operated at a cell voltage of from about 3.0 to 4.0 volts with a current efficiency of 95 to 100 percent.
The present cell, when containing noble metal surfaced anodes, is capable of being operated at a substantially higher current density in the electrolysis of sodium chloride to sodium chlorate than conventional graphite-anode chlorate cells and may be operated at temperatures higher than generally used in chlorate production. The noble metal surfaced anodes are resistant to oxidation and corro sion even at temperatures of 100 C. or above. Whereas graphite anodes tend to wear away in use, leading to an ever increasing anode-cathode gap with a corresponding increase in cell voltage, the noble metal surfaced anodes are relatively permanent in nature so that the original spacing between the electrodes may be maintained for long periods of time. Thus, high conductivity is maintained and the cell retains its original high efficiency.
For more information, please feel free to contact us chloralkali@tiaano.com or visit our webpage www.tianode.com
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Ti Anode Fabricators Pvt. Ltd.
No. 48, Noothanchary, Madambakkam,
Chennai - 600 126, I N D I A.
Email: chloralkali@tiaano.com Web: www.tianode.com
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