Process for producing alkali
A production process and cathode chamber technology, applied in the field of alkali production process, can solve the problems of reduced electrolyte resistivity, waste, and reduced anode conductivity, so as to prevent the alkali from re-reacting, reduce the waste of electric energy, and improve the electrolysis rate. Effect
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[0017] refer to figure 1 The embodiments of the present invention will be further described.
[0018] The present invention is a production process of alkali. The alkali described here mainly refers to a sodium hydroxide solution with a mass fraction of 32%. 3 The flow rate of / hr passes through the cold fluid pipeline of the heat exchanger 2, enters the anode chamber of the electrolytic cell 1 after being preheated, and the temperature reached by the preheating is 55°C. The cathode chamber is connected with a mixture of 32±0.5% alkali and pure water produced by the electrolysis of the cathode chamber. The concentration after mixing is 30±0.5%, and the flow of catholyte is controlled at 14m 3 / hr. After that, start to gradually increase the current in the solution, and when the current reaches 5KA, start to gradually add acid to the anode chamber, adjust the pH to 4 at first, and then continue to add acid to the anode chamber every other hour to make The pH value continues ...
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