| 摘要 |
<p>1,080,449. Plutonium separation. UNITED STATES ATOMIC ENERGY COMMISSION. Jan. 26, 1966 [March 10, 1965], No. 3573/66. Heading G6R. Plutonium is separated from uranium by contacting an aqueous solution containing these elements with an organic solution of tributyl phosphate, separating the organic solution, and contacting it with an aqueous solution in the presence of gaseous hydrogen and a hydrogenation catalyst. Plutonium is reduced to the trivalent state and transfers selectively into the aqueous solution, the uranium remaining substantially unreduced in the organic solution. In examples, a tributyl phosphate-dodecane solution containing uranium and plutonium is contacted with a nitric acid solution and introduced concurrently with 4% by volume of hydrogen in argon, or with pure hydrogen, into a packed column of platinized alumina pellet catalyst. Reference has been directed by the Comptroller to Specification 801,743.</p> |
