The separation of zirconium and hafnium isotopes from the early actinides and rare earth elements (REE) with Eichrom’s Pb resin has been studied. Batch studies were performed to characterize the behavior of actinium, thorium, zirconium, hafnium, lutetium, and yttrium on Pb resin from HCl solutions (0.001 M to 11 M). The early actinides and REE had no affinity for the resin at any concentration of HCl, but zirconium and hafnium showed a moderate uptake at high concentrations of HCl with a maximum extraction at 11 M HCl. Several column separations were tested, including with only tracer isotopes and with mass. Rapid, simple separations of zirconium from actinium, thorium, protactinium, and the REE with high yields and low elution volumes are presented with applications for tracer isotope production and fission product separations. The resin is less suitable for hafnium separations as hafnium tends to bleed off the resin even at high concentrations of HCl.

已经研究了使用 Eichrom 的 Pb 树脂从早期锕系元素和稀土元素 (REE) 中分离锆和铪同位素。进行批量研究以表征锕、钍、锆、铪、镥和钇在 HCl 溶液（0.001 M 至 11 M）中的 Pb 树脂上的行为。早期的锕系元素和 REE 在任何浓度的 HCl 下都对树脂没有亲和力，但锆和铪在高浓度的 HCl 下表现出适度的吸收，在 11 M HCl 下的最大萃取率。测试了几种色谱柱分离，包括仅使用示踪同位素和使用质量。快速、简单地从锕、钍、镥和 REE 中分离锆，收率高，洗脱量低，可用于示踪同位素生产和裂变产物分离。