Hydrofluorocarbon Diluent for CMPO Without Third Phase Formation: Extraction of Uranium(VI) and Lanthanide(III) Ions
Hydrofluorocarbon Diluent for CMPO Without Third Phase Formation: Extraction of Uranium(VI) and Lanthanide(III) Ions
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用于不形成第三相的 CMPO 的氢氟碳稀释剂:铀 (VI) 和镧系 (III) 离子的萃取
DOI:
10.1080/01496395.2021.1970767
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发表时间:
2021
影响因子:
2.8
通讯作者:
Yamamura Tomoo
中科院分区:
文献类型:
--
作者:
Tabata Chihiro;Nakase Masahiko;Harigai Miki;Shirasaki Kenji;Sunaga Ayaki;Yamamura Tomoo
The extraction behaviors of trivalent lanthanides (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) and hexavalent uranium with octylphenyl(,-diisobutylcarbamoylmethyl)phosphine oxide (CMPO) from a nitric acid medium were studied using hydrofluorocarbon (1,1,1,2,2,3,4,5,5,5- decafluoropentane: HFC-43) as a nonflammable diluent. It was revealed that HFC-43 exhibits high solubility of CMPO even in the absence of tributylphosphate (TBP), which has typically been necessary to prevent third-phase formation in the conventional TRUEX process using-dodecane as a diluent. Distribution ratios have been studied as a function of aqueous HNOconcentrations, CMPO concentrations, and ionic radii of lanthanide(III) ions. The stoichiometry of the extracted coordination complex was examined based on the slope analysis, and it was determined that two to three CMPO molecules are coordinated to one lanthanide or uranium ion. The feasibility of the process is indicated by the distribution ratio, which is comparable to the conventional system using-dodecane as diluent. In addition, the safety benefits of applying the nonflammable solvent HFC to the TRUEX process are also presented.
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DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
C. Erlinger;L. Belloni;T. Zemb;C. Madic
通讯作者:
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影响因子:
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A. Suzuki
DOI:
--
发表时间:
1995
期刊:
--
影响因子:
--
作者:
T. E. Carleson;C. Wai;N. Chipman
通讯作者:
N. Chipman