Method of separation using crown ethers of uranium and plutonium, which are present in the aqueous medium resulting from the reprocessing of irradiated nuclear fuel.

摘要

The invention relates to the separation, using crown ethers, of uranium and plutonium which are present in an aqueous solution originating from the reprocessing of irradiated fuels. …??This solution (5) is brought into contact at (2) with an organic liquid membrane (3) containing a crown ether. Uranium and plutonium are extracted into the liquid membrane (3) and then conveyed by this membrane into a receiving solution (7) which becomes enriched in uranium because uranium is conveyed more rapidly than plutonium. …??The crown ether may be DCH 18 C6 or DB 18 C6. …IMAGE…