Extraction and Separation between Light and Heavy Lanthanides by N,N,N′,N′-Tetraoctyl-diglycolamide from Organic Acid

被引：9

作者：

Sasaki, Yuji ^{[1
]}

Matsumiya, Masahiko ^{[2
]}

Nakase, Masahiko ^{[3
]}

Takeshita, Kenji ^{[3
]}

机构：

[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

[2] Yokohama Natl Univ, 79-1 Tokiwadai, Yokohama, Kanagawa 2408501, Japan

[3] Tokyo Inst Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan

来源：

CHEMISTRY LETTERS | 2020年 / 49卷 / 10期

关键词：

Organic acid; Lanthanide extraction; TODGA extractant; NITRIC-ACID; TODGA; ACTINIDES; CYME4BTBP; MIXTURE;

D O I：

10.1246/cl.200431

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lanthanide (Ln) extractions from organic acids to n-dodecane by N,N,N', N'-tetraoctyl-diglycolamide (TODGA) were conducted. Four organic acids (lactic acid, malonic acid, tartaric acid, and citric acid) were employed. Although these acids stabilize lanthanides in the aqueous phase, a distribution ratio (D) greater 1 was obtained for heavy Ln. Ln patterns (D(Ln) against atomic number of Ln) show maximum values of Ho and Er. In order to obtain high D values, the addition of HNO3 in aqueous phase was found to be effective.

引用

页码：1216 / 1219

页数：4

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