Extraction of americium, curium, and californium with LN resin from HCl and HNO3
摘要
The uptake of 241Am, 244Cm and 249Cf with LN resin was studied in HCl and HNO3 solutions with concentrations ranging from 0.02 to 2.5 M. There is high uptake at concentrations < 0.1 M in both acids for all three isotopes with decreasing uptake at higher concentrations and negligible extraction at ≥ 0.6 M. Californium has a higher extraction than americium and curium, which are extremely similar. Kinetics studies showed rapid uptake of all three isotopes. Column studies were performed to demonstrate the separation of 241Am and 249Cf, and a bulk separation including nine stable lanthanides along with 241Am, 249Cf, and 88Y.