| 摘要 |
<p>Process for reextracting into aqueous solution plutonium present in an organic solvent, capable of being employed especially for uranium-plutonium separation. According to this process, the organic solvent is placed in contact with an acidic aqueous solution of uranous salt, for example uranous nitrate, and of hydroxylamine salt, for example hydroxylamine nitrate. Under these conditions uranous nitrate acts as an agent reducing plutonium to the valency (III) and the hydroxylamine nitrate, which is also a reducing agent for plutonium, stabilises Pu(III) and U(IV) in aqueous phase. …<??>Performances similar to those of the U(IV)-hydrazine nitrate system are obtained without formation of the noxious products of degradation of hydrazine nitrate. …<IMAGE>… </p> |
