DISTRIBUTION STUDIES OF ACTINIDES USING A TETRADENTATE EXTRACTANT, 4,4'-NONANEDIOYL-BIS(2,4-DIHYDRO-5-METHYL-2-PHENYL-3H-PYRAZOL-3-ONE)

被引：8

作者：

ENSOR, DD ^{[1
]}

GLASGOW, DC ^{[1
]}

SMITH, BF ^{[1
]}

JARVINEN, GD ^{[1
]}

JONES, MM ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1990年 / 25卷 / 13-15期

关键词：

D O I：

10.1080/01496399008050413

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The extraction of Th(IV), UO2(II), Am(III), and Eu(III) from aqueous acid by a tetradentate extractant, 4,4'-nonanedioyl-bis(2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one), H2NDBP, has been studied and compared with two bidentate model compounds, 4-hexanoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one, HHMPP, and 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one, HHMPP. The distribution coefficients of UO2(II), Am(III), and Eu(III) were somewhat larger using H2NDBP relative to the model compounds under the conditions studied. However, the Th(IV) extraction using H2NDBP was greatly enhanced when compared to HBMPP or HHMPP. The distribution coefficient for Th(IV) from 0.5 M HNO3 was 11.6 using 3.0 x 10-3 M H2NDBP compared with values of D < 0.01 using 3.0 x 10-3 M HBMPP or HHMPP.

引用

页码：1629 / 1639

页数：11

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