电解法制备碘酸钾工艺研究

以碘和氢氧化钾为原料,采用电化学方法制备碘酸钾。研究表明:在有隔膜条件下,电解液的最佳配方为:碘100 g/L,KOH的浓度是100 g/L,KI的浓度是25 g/L。最佳电解条件为:阳极材料为镀钛电极,阴极为铅电极,槽电压为3 V,温度50℃～60℃,电解时间为6 h。在该条件下,电解制备碘酸钾的产率为78.3%,电流效率为80.3%,产品纯度为99.2%。

Study on Electrochemical Method for Producing Potassium Iodate

This paper investigated the production of potassium iodate by electrochemical method.The influence of electrode material electrolyte density(100 g/L I,100 g/L KOH),electrolyte temperature,current efficiency and potassium iodate(25 g/L)yield were studied.The optimum experimental conditions for the prroduction of potassium iodate were as follows: anode admixture of metal cathode lead,electrolyte temperature 50 ℃~60 ℃,current efficiency 80.3%,potassium iodate yield 78.3%,voltage 3 V,pureness 99.2%.