Comparison of Extraction Behavior of Neptunium from Nitric Acid Medium Employing Tri-n-Butyl Phosphate and N,N-dihexyl Octanamide as Extractants

被引：21
|
作者：
Kumari, Neelam [1 ]
Pathak, P. N. [1 ]
Prabhu, D. R. [1 ]
Manchanda, V. K. [2 ]
机构：
[1] Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
[2] Sungkyunkwan Univ, Dept Energy Sci, Suwon, South Korea
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2012年 / 47卷 / 10期
关键词：
dialkyl amide; neptunium; plutonium; reprocessing; TBP; uranium; PUREX PROCESS CONDITIONS; CATALYZED OXIDATION; TBP EXTRACTION; NITROUS-ACID; KINETICS; URANIUM; NP(IV); AMIDES; U(VI); CYCLE;
D O I：
10.1080/01496395.2011.653034
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Extraction behavior of neptunium has been compared for tri-n-butyl phosphate (TBP) and N,N-dihexyl octanamide (DHOA) extractants as a function of nitric acid concentration (0.5 - 6M HNO3), uranium loading (50 and 300 g/L relevant to Pu rich fast reactor and Pressurized Heavy Water Reactor, PHWR spent fuels, respectively), and in the presence of oxidizing and reducing agents. These studies suggest the possibility of co-recovery of U(VI), Pu(IV) and Np(IV) from spent fuel dissolver solutions (of Pu rich fuels) employing DHOA as extractant.
引用
收藏
页码：1492 / 1497
页数：6
相关论文
共 50 条
  • [1] Redox Behavior of Neptunium(V) in Tributyl Phosphate and N,N-Dihexyl Octanamide Extractants Dissolved in n-Dodecane
    P. N. Pathak
    Neelam Kumari
    D. R. Prabhu
    V. K. Manchanda
    Journal of Solution Chemistry, 2012, 41 : 410 - 421
  • [2] Redox Behavior of Neptunium(V) in Tributyl Phosphate and N,N-Dihexyl Octanamide Extractants Dissolved in n-Dodecane
    Pathak, P. N.
    Kumari, Neelam
    Prabhu, D. R.
    Manchanda, V. K.
    JOURNAL OF SOLUTION CHEMISTRY, 2012, 41 (03) : 410 - 421
  • [3] Characterization of the species formed during the extraction of thorium employing tri-n-butyl phosphate and N,N-dihexyl octanamide as extractants by Laser desorption/ionization time-of-flight mass spectrometry
    Verma, P. K.
    Pathak, P. N.
    Jayasekharan, T.
    Vatsa, R. K.
    Mohapatra, P. K.
    EUROPEAN JOURNAL OF MASS SPECTROMETRY, 2013, 19 (04) : 275 - 283
  • [4] Solvent extraction behaviour of some fission product elements with N,N-dihexyl octanamide and tri-n-butyl phosphate under simulated PUREX process conditions
    Kulkarni, P. G.
    Gupta, K. K.
    Gurba, P. B.
    Janardan, P.
    Changrani, R. D.
    Dey, P. K.
    Manchanda, V. K.
    RADIOCHIMICA ACTA, 2006, 94 (6-7) : 325 - 329
  • [5] Uranium Extraction Studies Employing Tributyl Phosphate and N, N-Dihexyl Octanamide as Extractants: Counter-Current Centrifugal Contactors Runs
    Kumari, Neelam
    Prabhu, D. R.
    Pathak, P. N.
    SEPARATION SCIENCE AND TECHNOLOGY, 2013, 48 (16) : 2479 - 2485
  • [6] Extraction studies of uranium into a third-phase of thorium nitrate employing tributyl phosphate and N,N-dihexyl octanamide as extractants in different diluents
    Kumari, Neelam
    Prabhu, D. R.
    Pathak, P. N.
    Kanekar, A. S.
    Manchanda, V. K.
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2011, 289 (03) : 835 - 843
  • [7] Extraction studies of uranium into a third-phase of thorium nitrate employing tributyl phosphate and N,N-dihexyl octanamide as extractants in different diluents
    Neelam Kumari
    D. R. Prabhu
    P. N. Pathak
    A. S. Kanekar
    V. K. Manchanda
    Journal of Radioanalytical and Nuclear Chemistry, 2011, 289 : 835 - 843
  • [8] Behavior of silicic acid in extraction systems with tri-n-butyl phosphate
    Markov, GS
    Ryzhkova, IV
    Tretyakov, VE
    Firsin, NG
    Moshkov, MM
    RADIOCHEMISTRY, 1996, 38 (04) : 354 - 358
  • [9] Solvent extraction studies with some fission product elements from nitric acid media employing tri-iso-amyl phosphate and tri-n-butyl phosphate as extractants
    Sreenivasulu, B.
    Suresh, A.
    Sivaraman, N.
    Rao, P. R. Vasudeva
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2015, 303 (03) : 2165 - 2172
  • [10] Solvent extraction studies with some fission product elements from nitric acid media employing tri-iso-amyl phosphate and tri-n-butyl phosphate as extractants
    B. Sreenivasulu
    A. Suresh
    N. Sivaraman
    P. R. Vasudeva Rao
    Journal of Radioanalytical and Nuclear Chemistry, 2015, 303 : 2165 - 2172
12345