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Title:
酸性溶液中に存在するアメリシウム及びネオジムの抽出方法
Document Type and Number:
Japanese Patent JP4524394
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for efficiently extracting Am(III), Cm(III), and Ln(III) ions existing in an aqueous acidic solution, especially in a high level wastewater generated from recycling treatment of spent nuclear fuel. SOLUTION: Am, Cm and rare earth elements are extracted to an organic solvent, for example, n-dodecane, from a variety of aqueous solutions containing widely various nuclear species with an extraction agent of a diglycol amide compound containing two amido groups and having a structure in which these amido groups are bonded with a functional group, CH2-O-CH2, containing O in the ether form, that is, an extraction agent possible to form tridentate coordination and having the structural formula; R1R2NCOCH2OCH2CONR3R4 (wherein R1, R2, R3, and R4 are each separately an alkyl defined as CnH2n+1).

Inventors:
Yuji Sasaki
Yaita Takeshi
Koichi Narita
Tachimori Shoichi
Application Number:
JP2000186323A
Publication Date:
August 18, 2010
Filing Date:
June 21, 2000
Export Citation:
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Assignee:
Japan Atomic Energy Agency
International Classes:
C22B3/20; G21F9/06; B01D11/04; C22B3/26; C22B59/00; C22B60/02; G21C19/46
Domestic Patent References:
JP7239396A
JP2002540061A
Other References:
佐々木祐二、館盛勝一,"新規に合成したジグリコールアミドを用いるランタノイド、アクチノイドの溶媒抽出",第61回分析化学討論会講演要旨集,日本,社団法人 日本分析化学会,2000年 5月 2日,p87
Yuji SASAKI and R. CHOPPIN ,"Solvent Extraction of Eu, Th, U, Np and Am with N, N′-Dimethyl-N, N′-dihexyl-3-oxapentanediamide and Its Analogous Compounds",Analytical Sciences,日本,社団法人日本化学分析会,1996年,Vol.12,p225-230
Attorney, Agent or Firm:
Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shurin Sakurai
Fujihiro Kanda
Hideo Tanaka
Shinya Hosokawa
Norihiro Fukasawa
Koji Hirayama