SEPARATION AND PURIFICATION OF ULTRAMICROGRAM URANIUM FROM SATURATED NaCl SOLUTION

SEPARATION AND PURIFICATION OF ULTRAMICROGRAM URANIUM FROM SATURATED NaCl SOLUTION 1 first-author China Institute of Atomic Energy, Beijing 102413, China China Institute of Atomic Energy, Beijing 102413, China This paper summarizes the results of the coprecipitation of ultramicrogram uranium with Fe(OH) 3 from saturated NaCl solution and separation of uranium from Fe(Ⅲ) by solvent extraction with TBP as extractant. In the first step, the coprecipitation efficiency of uranium is more than 95%; in the second step, extraction percentage of uranium is more than 98%, and stripping efficiency of uranium is nearly 100% (twice stripping) and separation factor (separation of Fe(Ⅲ) from uranium) is more than 10 3 . TBP extraction Fe(OH) 3 coprecipitation Trace amount uranium REFERENCES Laskorin B N , Metalnikov S S , Terentiev A S . Proceeding of the second united nations international conference on the peaceful uses of atomic energy . Geneva : United Nations Publication , 1958 : Vol.3 , 211 Dai Minhai , Wu Shawchii . Separ Sci , 1975 ; 10 ( 5 ): 633 Separ Sci Ye Yuxing , Marx G , Keiling C H . J Nucl Radiochem (in Chinese) , to be published J Nucl Radiochem (in Chinese) Petrich G , Kolarik Z . The 1981 Purex distribution data index, KFK 3080 . Kernforschungszentrum Karlsruhe BRD , 1981 : 1 - 103 The 1981 Purex distribution data index, KFK 3080 Wallach K S , Tribtyl phosphate (TBP) and its application in solvent extraction, Ls-70(pt.1) . Jerusalem : Israel Atomic Energy Commission, Tel Aviv , 1963 : 1 - 259 Tribtyl phosphate (TBP) and its application in solvent extraction, Ls-70(pt.1) Tarnero Maurice . Study of the physicochemical agents influencing uranium and plutonium extraction by Tributyl phosphate in nitric media, CEA-R-3206. Fontenary-aus-Roses , France : Commissariat a L'energie Atomique , 1967 , 1 - 84 Study of the physicochemical agents influencing uranium and plutonium extraction by Tributyl phosphate in nitric media, CEA-R-3206. Fontenary-aus-Roses Розен A M , ХорхорииаЛ ∏ , КарпачеваС М . и гд Радиохимия , 1962 ; Tom 4 ( 5 ): 591 и гд Радиохимия 1993-08-01 2021-02-05 1993 Nuclear Science and Techniques 3 4