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能用0.5MHBr 的86%丙酮溶液(或者是0.35MHBr 的90%丙酮溶液),将装有200—400目 AG50W-X4阳离子交换树脂柱中的 Ga、Fe(Ⅲ),Bi,Pb,Cd,Zn,Cu(Ⅱ)和 Au(Ⅲ)定量地淋洗掉,使之与铀(Ⅵ)分离。铀(Ⅵ)和许多其他离子一起被吸附,然后能用0.50MHCl 的83%丙酮溶液(或者用0.35MHCl 的85%丙酮溶液),选择性地将铀(Ⅵ)洗提出来。Co(Ⅱ),Mn(Ⅱ),Mg,Ca,Ti(Ⅵ),Al,Zr,Th 和 La 为交换柱定量地吸附。这些元素能用 5MHNO_3洗提。在较高的酸度(0.50M)条件下,铀(Ⅵ)和锂之间的分离并不满意。但在较低的酸度条件下,分离是良好的。在较高的酸度条件下,铀(Ⅵ)峰较为锐利。一些合成混合物的实验结果表明,分离是鲜明的,而且是定量的。本文列出了分配系数和淋洗曲线。
The sample of Ga, Fe (III), Bi, Pb, Cd, Ni and Fe in the column of 200-400 mesh AG50W-X4 cation exchange resin can be packed with 0.5M HBr 86% acetone solution Zn, Cu (Ⅱ) and Au (Ⅲ) were quantitatively eluted and separated from uranium (Ⅵ). Uranium (VI) is adsorbed along with many other ions and the uranium (VI) can then be selectively stripped with 0.50 M HCl in 83% acetone (or with 0.35 M HCl in 85% acetone). Co (Ⅱ), Mn (Ⅱ), Mg, Ca, Ti (Ⅵ), Al, Zr, Th and La were quantitatively adsorbed on the column. These elements can be eluted with 5MHNO_3. At higher acidity (0.50 M), the separation between uranium (Ⅵ) and lithium is not satisfactory. However, under lower acidity conditions, the separation is good. Uranium (Ⅵ) peaks are sharper at higher acidity. Experimental results on some synthetic blends show that the separation is sharp and quantitative. This article lists the partition coefficient and elution curve.