YUAN Zhong-wei, SHUANG Hong-ying, YAN Tai-hong, ZHENG Wei-fang, ZHANG Yu, BIAN Xiao-yan. Preparation of Uranous Nitrate by Membrane ElectrolysisⅠ. Electrolyser Setup and Performance Test[J]. Journal of Nuclear and Radiochemistry, 2012, 34(1): 55-59.
    Citation: YUAN Zhong-wei, SHUANG Hong-ying, YAN Tai-hong, ZHENG Wei-fang, ZHANG Yu, BIAN Xiao-yan. Preparation of Uranous Nitrate by Membrane ElectrolysisⅠ. Electrolyser Setup and Performance Test[J]. Journal of Nuclear and Radiochemistry, 2012, 34(1): 55-59.

    Preparation of Uranous Nitrate by Membrane ElectrolysisⅠ. Electrolyser Setup and Performance Test

    • In order to improve U(Ⅳ) concentration and preparation rate during electrochemical process, taking 72 cm2 Ru/Ir coated Ti mesh as an anode and Ti mesh as a cathode, a membrane electrolyser was set up. The performances of two different membranes were compared. The results show that the apparatus run well at a current density as high as 120 mA/cm2, and the two different membranes (Nepem-417 and Aciplex-F4112) have no remarkable effect on electrolysis. After 180min electrolysis, U(Ⅳ) yield can achieve 93.1% (500 mL feed, ρ(U(Ⅵ))=199 g/L). During the electrolysis, hydrazine concentration decreases from 0.52 mol/L to 0.30 mol/L, HNO3 concentration decreases from 2.20 mol/L to 0.70 mol/L, cell voltage varies between 3 V and 3.6 V, catholyte and anolyte temperature is below 45℃ (room temperature is 28℃).
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