multistage extraction
1.A multistage countercurrent extraction process is developed for the removaland recovery of actinides and lanthanides by 30(V)% bidentate organophospho-rous extractant DHDECMP in diethyl benzene from 3 mol/1 nitric acid solutionof simulated nuclear power reactor fuel reprocessing waste.
2.Multistage countercurrent cascade experiments (4 stages for extraction, 2 stages for scrubbing) were carried out with simulated waste containing high concentration salt and trace Am( III ).
