Process for separating by means of crown ethers the uranium and

Details Process for separating by means of crown ethers the uranium and Process for separating by means of crown ethers the uranium and

1989-06-16

1991-07-02

Hunt, Brooks H.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 20, 423251, 252627, B01D 1100, G21C 1942, C01G 5600, C01G 4300

Patent

active

050284029

ABSTRACT:
Process for separating plutonium from uranium contained in a nitric acid aqueous solution from the reprocessing of irradiated fuels comprising plutonium, uranium and fission products by means of crown ethers. Nitric acid aqueous solution (5) containing plutonium, uranium and fission products is contacted at (2) with an organic liquid membrane (3) containing a crown ether. The uranium and plutonium are extracted in the liquid membrane (3) and then transferred by said membrane into a receiving solution (7), which becomes enriched with uranium, because the latter is transferred more rapidly than the plutonium. The crown ether can be DCH 18 C6 or DB 18 C6.

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