| 摘要 |
<p>1. A proces for the total recovery of uranium and at least one element from the group comprising yttrium, thorium and rare earths contained in an organic phase, which is characterized by bringing said organic phase into contact with at least one diluent selected from the group comprising ethers, alcohols, polyhydric alcohols, amides, sulphoxides and ketones, at least one precipitating agent selected from the group comprising ammonia, ammonium salts and fluorides, except for hydrogen fluoride, and an aqueous phase, the diluent being selected such as to produce a homogeneous medium with the organic phase and the aqueous phase, thereby producing a liquid phase and a precipitate comprising said species which are then separated from the liquid phase.</p> |
