PROCESS FOR SEPARATING RARE EARTHS AND URANIUM FROM UF4 CONCENTRATE AND USING THEM

摘要

THE INVENTION RELATES TO A PROCESS FOR SEPARATING RARE EARTHS AND URANIUM FROM A UF CONCENTRATE AND THEIR RECOVERY. /P P IT IS CHARACTERIZED BY AN ATTACK OF UF BY POTASSE FOLLOWED BY A NITRIC RECOVERY OF THE PRECIPITE OBTAINED AND A TREATMENT WITH AN ORGANIC SOLVENT WHICH GIVES, on the one hand, an ORGANIC SOLUTION CONTAINING PURIFIED URANYL NITRATE, AND ON THE OTHER HAND, AN AQUEOUS SOLUTION FROM WHICH IS PRECIPATED BY A BASE A CONCENTRATE OF RARE EARTHS. /P P IT FINDS ITS APPLICATION IN THE MANUFACTURE OF PURIFIED URANIUM IN RARE EARTHS AND IN THE OBTAINING OF CONCENTRATES OF SAID ELEMENTS.