Study of Extraction of Palladium from Nitric Acid Solutions with Nitrogen-Containing Compounds, as Applied to Recovery of Fission Palladium from Spent Nuclear Fuel of Nuclear Power Plants: 1. Extraction and Backwashing Conditions

被引：1
|
作者：
E. A. Mezhov
V. A. Kuchumov
V. V. Druzhenkov
机构：
[1] Bochvar Russian Research Institute of Inorganic Materials,State Scientific Center of the Russian Federation
来源：
Radiochemistry | 2002年 / 44卷 / 2期
关键词：
Nitrate; Palladium; HNO3; Contact Time; Nuclear Power Plant;
D O I：
10.1023/A:1019663027481
中图分类号：
学科分类号：
摘要：
Extractive power of high-molecular-weight amines and quarternary ammonium bases (QABs) of various structures in various aliphatic and aromatic diluents is studied with respect to recovery of palladium nitrate complexes from nitric acid solutions. The effects of pH of the aqueous phase, the contact time, and temperature on the extraction parameters were studied with selected (optimal) extractants (tri-n-octylamine and tricaprylmethylammonium nitrate) in benzene. The composition of extracted complexes was determined to be a monosolvate in the case of the QAB and a disolvate for the tertiary amine. Palladium is efficiently backwashed with concentrated HNO3 and aminoacetic acid at elevated temperature. The solubility of amines and QABs in aqueous solutions is briefly reviewed.
引用
收藏
页码：135 / 140
页数：5
相关论文
共 23 条
  • [1] Study of Extraction of Palladium from Nitric Acid Solutions with Nitrogen-Containing Compounds, as Applied to Recovery of Fission Palladium from Spent Nuclear Fuel of Nuclear Power Plants: 3. Optimization of Extraction Process for Palladium Recovery and Refining
    E. A. Mezhov
    V. V. Druzhenkov
    A. N. Sirotinin
    Radiochemistry, 2002, 44 (2) : 146 - 150
  • [2] Study of Extraction of Palladium from Nitric Acid Solutions with Nitrogen-Containing Compounds, as Applied to Recovery of Fission Palladium from Spent Nuclear Fuel of Nuclear Power Plants: 2. Effect of Radiation on Palladium Recovery and Condition of Extraction Systems
    E. A. Mezhov
    I. A. Kulikov
    E. G. Teterin
    Radiochemistry, 2002, 44 (2) : 141 - 145
  • [3] Recovery of Palladium from Nitric Acid Solutions of Spent Nuclear Fuel Reprocessing
    Davydova, P., V
    Korneyko, Yu, I
    Korolev, V. A.
    Krasnikov, L., V
    Kretser, Yu L.
    RADIOCHEMISTRY, 2022, 64 (03) : 280 - 283
  • [4] Recovery of Palladium from Nitric Acid Solutions of Spent Nuclear Fuel Reprocessing
    P. V. Davydova
    Yu. I. Korneyko
    V. A. Korolev
    L. V. Krasnikov
    Yu. L. Kretser
    Radiochemistry, 2022, 64 : 280 - 283
  • [5] Extraction of Palladium from Spent Nuclear Fuel Reprocessing Solutions
    Safiulina, Alfiya M.
    Borisova, Nataliya E.
    Karpyuk, Ekaterina A.
    Ivanov, Alexey V.
    Lopatin, Dmitry A.
    METALS, 2024, 14 (02)
  • [6] Recovery of Pd from spent fuel: 1. Electrochemical recovery of palladium from nitric acid solutions
    Kirshin M.Yu.
    Pokhitonov Yu.A.
    Radiochemistry, 2005, 47 (4) : 365 - 369
  • [7] Ways of Technetium and Neptunium Localization in Extraction Reprocessing of Spent Nuclear Fuel from Nuclear Power Plants
    Goletskii, N. D.
    Zilberman, B. Ya.
    Fedorov, Yu. S.
    Kudinov, A. S.
    Timoshuk, A. A.
    Sytnik, L. V.
    Puzikov, E. A.
    Rodionov, S. A.
    Krinitsyn, A. P.
    Ryazantsev, V. I.
    Ryabkov, D. V.
    RADIOCHEMISTRY, 2014, 56 (05) : 501 - 514
  • [8] Impregnated resins containing di-(2-ethylhexyl) thiophosphoric acid for the extraction of palladium(II). II. Selective palladium(II) recovery from hydrochloric acid solutions
    Rovira, M
    Cortina, JL
    Arnaldos, J
    Sastre, AM
    SOLVENT EXTRACTION AND ION EXCHANGE, 1999, 17 (02) : 351 - 366
  • [9] Extraction of Actinides and Lanthanides(III) from Nitric Acid Solutions with Mixtures of N-(Diphenylphosphoryl)-N'-propylureas with ω-Nitrogen-Containing Groups and Dinonylnaphthalenesulfonic Acid
    A. N. Turanov
    V. K. Karandashev
    T. V. Baulina
    E. I. Goryunov
    V. K. Brel
    Russian Journal of Inorganic Chemistry, 2023, 68 : 587 - 592
  • [10] Extraction of Actinides and Lanthanides(III) from Nitric Acid Solutions with Mixtures of N-(Diphenylphosphoryl)-N'-propylureas with ω-Nitrogen-Containing Groups and Dinonylnaphthalenesulfonic Acid
    Turanov, A. N.
    Karandashev, V. K.
    Baulina, T. V.
    Goryunov, E. I.
    Brel, V. K.
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2023, 68 (05) : 587 - 592
123