Influence of Temperature on the Extraction of Pu(IV) by Tri-n-butyl Phosphate from Acidic Nitrate Solutions

被引：4
|
作者：
Brown, M. Alex
Tkac, Peter
Paulenova, Alena [1 ]
Vandegrift, George F. [2 ]
机构：
[1] Oregon State Univ, Ctr Radiat, Dept Nucl Engn & Radiat Hlth Phys, Corvallis, OR 97331 USA
[2] Argonne Natl Lab, Argonne, IL 60439 USA
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2010年 / 45卷 / 01期
关键词：
plutonium; TBP; nitrate; solvent extraction; Van't Hoff; PUREX; CHLORIDE COMPLEXES; NITRIC-ACID; PLUTONIUM(IV); STABILITY;
D O I：
10.1080/01496390903402133
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The influence of temperature on the extraction of Pu(IV) into 30 vol.% tri-n-butyl phosphate in n-dodecane from acidic nitrate solutions has been investigated at temperatures ranging from T=(294 to 313) K. Temperature was found to decrease the distribution of Pu(IV). Three species of plutonium were considered present in the aqueous solution: Pu4+, [image omitted], and [image omitted]. The enthalpy and entropy of the extraction, calculated using Van't Hoff plots, are -60.4 +/- 3.34kJ center dot mol-1 and -120 +/- 10.6J center dot mol-1 center dot K-1, respectively.
引用
收藏
页码：50 / 57
页数：8
相关论文
共 50 条
  • [1] Modeling of Pu(IV) Extraction from Acidic Nitrate Media by Tri-n-butyl Phosphate
    Tkac, Peter
    Paulenova, Alena
    Vandegrift, George F.
    Krebs, John F.
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2009, 54 (07): : 1967 - 1974
  • [2] Modeling of Pu(IV) Extraction by Tri-n-butyl Phosphate from Acidic Nitrate Media Containing Acetohydroxamic Acid
    Tkac, Peter
    Paulenova, Alena
    Vandegrift, George F.
    Krebs, John F.
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2010, 55 (09): : 3445 - 3450
  • [3] Extraction of titanium (IV) from acidic media by tri-n-butyl phosphate in kerosene
    Seyfi, S.
    Abdi, M.
    MINERALS ENGINEERING, 2009, 22 (02) : 116 - 118
  • [4] Selection criteria of diluents of tri-n-butyl phosphate for recovering neodymium(III) from nitrate solutions
    Regadio, Mercedes
    Batchu, Nagaphani Kumar
    Binnemans, Koen
    CHEMICAL ENGINEERING RESEARCH & DESIGN, 2020, 161 : 304 - 311
  • [5] Spectroscopic identification of tri-n-butyl phosphate adducts with Pu(IV) hydrolyzed species
    Tkac, Peter
    Paulenova, Alena
    ACTINIDES 2009, 2010, 9
  • [6] Solvent extraction of americium(VI) by tri-n-butyl phosphate
    Kamoshida, M
    Fukasawa, T
    JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 1996, 33 (05) : 403 - 408
  • [7] Complexation Behavior of the Tri-n-butyl Phosphate Ligand with Pu(IV) and Zr(IV): A Computational Study
    Gopakumar, Gopinadhanpillai
    Sreenivasulu, B.
    Suresh, A.
    Rao, C. V. S. Brahmmananda
    Sivaraman, N.
    Joseph, M.
    Anoop, Anakuthil
    JOURNAL OF PHYSICAL CHEMISTRY A, 2016, 120 (24): : 4201 - 4210
  • [8] Influence of Di-n-butyl Phosphoric Acid on Cerium Redox and Speciation in Tri-n-butyl Phosphate
    Dunbar, Joshua R.
    Jensen, Mark P.
    INORGANIC CHEMISTRY, 2024, 63 (28) : 12839 - 12848
  • [9] Influence of temperature on phase separation in the binary system tetradecane-Nd(III) nitrate solvate with tri-n-butyl phosphate and ternary system tetradecane-tri-n-butyl phosphate-Nd(III) nitrate solvate with tri-n-butyl phosphate
    Pyartman A.K.
    Kudrova A.V.
    Keskinov V.A.
    Radiochemistry, 2004, 46 (5) : 468 - 470
  • [10] Radiolytic alterations to neptunium extraction and redox in 30 % tri-n-butyl phosphate
    Dunbar, Joshua R.
    Peterman, Dean R.
    Jensen, Mark P.
    RADIOCHIMICA ACTA, 2025,
12345