Electrochemical production of sodium hydroxide and sulfuric acid from acidified sodium sulfate solutions

摘要

An electrochemical process for the production of sulphuric acid and sodium hydroxide by the electrolysis of an aqueous solution of sodium sulphate in which the concentration of the aqueous sodium sulphate solution which is electrolysed is greater than that of a saturated solution of sodium sulphate under neutral conditions and at the temperature employed.PPThe process may be effected in a two-compartment electrolytic cell comprising an anode compartment and a cathode compartment separated by a cation-exchange membrane.