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本文采用国产强酸性阳离子交换树脂001×7,以动态实验方法测定了UO_2~(2+)-Na~+-H~+三元离子交换的平衡数据,并将UO_2~(2+)-Na~+-H~+三元离子交换体系中,任何两种离子的平衡数据与相应的UO_2~(2+)-H~+、UO_2~(2+)-Na~+及Na~+-H~+纯二元交换体系中的平衡数据作了比较。此外,还利用这三对离子的二元交换平衡数据推算了相应的三元交换的平衡数据。推算结果令人满意。对于多元离子交换反应的热力学也作了初步探讨。
In this paper, the equilibrium data of UO_2 ~ (2 +) - Na ~ + -H ~ + ternary ion exchange were measured by dynamic experiment with a strong acid cation exchange resin 001 × 7, and UO_2 ~ (2 +) - Na The equilibrium data of any two kinds of ions in the ~ + -H ~ + ternary ion exchange system are similar to those of the corresponding UO_2 ~ (2 +) - H ~ +, UO_2 ~ (2 +) - Na ~ + and Na ~ + -H ~ + Pure binary exchange system to compare the balance data. In addition, the equilibrium data of the corresponding ternary exchange is also calculated using the binary exchange equilibrium data of the three pairs of ions. The result of the calculation is satisfactory. The thermodynamics of multivariate ion exchange reaction is also discussed.