Method of separating thorium from plutonium

Details Method of separating thorium from plutonium Method of separating thorium from plutonium

1982-11-23

1984-07-10

Padgett, Benjamin R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423251, 423252, C01G 5600, C01F 1500

Patent

active

044592680

ABSTRACT:
A method of chemically separating plutonium from thorium. Plutonium and thorium to be separated are dissolved in an aqueous feed solution, preferably as the nitrate salts. The feed solution is acidified and sodium nitrite is added to the solution to adjust the valence of the plutonium to the +4 state. A chloride salt, preferably sodium chloride, is then added to the solution to induce formation of an anionic plutonium chloride complex. The anionic plutonium chloride complex and the thorium in solution are then separated by ion exchange on a strong base anion exchange column.

REFERENCES:
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patent: 2902339 (1959-09-01), Reber
D. B. James et al., "The Processing of Plutonium by Ion Exchange II . . . " Trans. Am. Nuc. Soc., vol. 5, No. 2, p. 459 (1962).
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J. M. Cleveland, The Chemistry of Plutonium, Gordon and Breach Science Publishers, New York (1970), p. 150.

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