Solvent extraction of palladium(II) with various ketones from nitric acid medium

被引：39

作者：

Hung, Nguyen Trong ^{[1
]}

Watanabe, Masayuki ^{[1
]}

Kimura, Takaumi ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Nucl Sci & Engn Directorate, Tokai, Ibaraki 3191195, Japan

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 2007年 / 25卷 / 03期

关键词：

palladium; solvent extraction; nuclear fuel reprocessing; alkyl ketones;

D O I：

10.1080/07366290701285538

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Solvent extraction of Pd(II) with various ketones in nitrobenzene from nitric acid medium was investigated. In this study, seventeen commercially available ketones were selected as representatives of alkyl ketones. It was found that several ketones effectively extracted Pd(II) from nitric acid medium. Methylalkylketones, such as 2-octanone, 2-nonanone, 2-undecanone, 2-tridecanone, and ketones containing symmetrical alkyl configuration, such as 5-nonanone, 5-decanone, 5-undecanone, and 6-undecanone exhibited significant extraction of Pd(H) from nitric acid. Particularly, 2-tridecanone and 2-nonanone showed efficient extractability for Pd(H) and their extraction behavior was fully investigated. With these extractants the partitioning of Pd(II) to the organic phase was significant at a ligand concentration of 3.0 M and acidity above 2.0 M.

引用

页码：407 / 416

页数：10

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