Causes of chlorate formation
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This post was last edited by sunjl1981 on 2013-1-7 00:21. The concentration of chlorate at the outlet of the electrolyzer increased by 2 g/L within a week – what are the factors responsible for the formation of chlorate? # + + .
During the electrolysis process, the temperature of the electrolytic cell remains around 90°C. The following reactions occur in the anode chamber of the electrolytic cell: 6ClO- + 3H2O – 6e- = 2ClO3- + 4Cl- + 6H+ + 3/2O2; 3Cl2 + 6NaOH = NaClO3 + 5NaCl + 3H2O. Chlorates are formed as a result of the reaction between hypochlorous acid and electrons lost at the anode, as well as the reaction between chlorine gas and hydroxide ions that move back from the cathode
The electrolyzer voltage rises after current adjustments and shutdown operations.