Title:
液体-液体抽出操作におけるアメリシウムとキュリウムおよび/またはランタニド類間の分離係数の増加
Document Type and Number:
Japanese Patent JP2013500486
Kind Code:
A
Abstract:
A method using diglycolamide for increasing the separation factor between americium and curium and/or between lanthanides during an extraction operation. The operation comprising putting an acid aqueous phase, in which are found the americium, curium and/or lanthanides, in contact with an organic phase non-miscible with water, containing at least one extractant in an organic diluent. The aqueous and organic phases are then separated, and the diglycolamide is added to the aqueous phase. This method can be used for processing and recycling irradiated nuclear fuels, in particular for selectively recovering americium from high activity aqueous solutions such as raffinates stemming from the processing of irradiated nuclear fuels with a PUREX or COEX™ method; processing of rare earth ores of the monazite, xenotime or bastnaesite type, in order to facilitate separation of <> rare earths from <> rare earths and of yttrium, or that of two rare earths with adjacent or close atomic numbers.
Inventors:
Ale Guzavie
Baron Pascal
Baron Pascal
Application Number:
JP2012522133A
Publication Date:
January 07, 2013
Filing Date:
July 26, 2010
Export Citation:
Assignee:
INSERM(INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE)
International Classes:
G21F9/06; C22B3/04; C22B3/26; C22B59/00; C22B60/02; G21C19/46
Domestic Patent References:
| JP2006153790A | 2006-06-15 | |||
| JP2004183093A | 2004-07-02 | |||
| JP2005349294A | 2005-12-22 | |||
| JP2003215292A | 2003-07-30 | |||
| JP2006153790A | 2006-06-15 | |||
| JP2004183093A | 2004-07-02 | |||
| JP2005349294A | 2005-12-22 | |||
| JP2003215292A | 2003-07-30 |
Foreign References:
| WO2008049807A1 | 2008-05-02 |
Other References:
JPN7013004752; Ｙｕｊｉ Ｓａｓａｋｉ ｅｔ ａｌ: '"Ｃｏｍｐｌｅｘａｔｉｏｎ ａｎｄ Ｂａｃｋ Ｅｘｔｒａｃｔｉｏｎ ｏｆ Ｖａｒｉｏｕｓ Ｍｅｔａｌｓ ｂｙ Ｗａｔｅｒ-ｓｏｌｕｂｌｅ Ｄｉｇｌｙｃｏｌａｍｉｄｅ"' Ａｎａｌｙｔｉｃａｌ Ｓｃｉｅｎｃｅ Ｖｏｌ．２３, 200706, ＰＰ．７２７-７３１
Attorney, Agent or Firm:
Shinei Patent Office