A METHOD FOR THE PRODUCTION OF CHLORINE AND ALKALI METAL HYDROXIDE AND A CHLORALKALI ELECTROLYTIC CELL FOR ARRYING OUT SUCH METHOD

摘要

Disclosed are methods of operation for oxygen electrodes which maximize the power efficiency available from such oxygen electrodes while minimizing the voltage necessary to operate such oxygen electrodes. These methods include control of the pressure of the gas feed side of the oxygen electrode, control of the total flow of the gas feed side, the humidification of the gas feed side of the oxygen electrode and the elimination of CO2 from the gas feed to the oxygen electrode to increase the lifetime of such electrodes as applied to a chlor-alkali electrolytic cell.