【摘要】 本文研究了盐酸—甲醇、盐酸—丙醇两种混合介质中U(Ⅳ)在201×7强碱性阴离子交换树脂与溶液之间的分配,测定了不同条件下U(Ⅳ)的分配比;分别用可见吸收光谱和红外吸收光谱研究了U(Ⅳ)在溶液相和树脂相中的化学状态。结果表明,有机溶液的存在可使U(Ⅳ)的分配比明显提高,但不影响其在树脂相中的化学状态。更多还原

【Abstract】 The distribution of U(Ⅳ)between strong base anion exchanger 201× 7 and mixed media (hydrochloric acid-methanol;hydrochloric acid-propanol) is investigated by means of batch method.The distribution ratio of U(Ⅳ) at different conditions are measured.By the visible spectroscopy and by the infrared spectroscopy, the U(Ⅳ) species sorbed on the anion exchanger and in the mixed media are studied.The experimental results have shown that the distribution raio of U(Ⅳ) increases in the presence of organic solvents comparing with that in HC1 medium and the Chemical nature of species of U(Ⅳ) in the solution or on the resin in the presence of organic solvents are same as that marked in HC1 medium.更多还原