Abstract
A sorption of metals from multicomponent nitric acid solutions that simulate process solutions resulting from reprocessing of spent nuclear fuel was studied. The sorbent used was a highly porous polymeric sorbent impregnated with crown ethers. Chemicals used in the work were dibenzo-18-crown-6 (DB18C6) and its alkyl-substituted derivatives: di-tert-butyldibenzo-18-crown-6 (DTBDB18C6) and diisooctyldibenzo-18-crown-6 (DIODB18C6). Sorption coefficients were determined for all elements. With the aim to study the possibility of isolation of 241Am from multicomponent solutions, separation factors for Am and ballast elements were determined. The possibility of application of sorbents impregnated with crown ethers for recovery of 241Am from multicomponent process solutions was shown.
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