Extraction of cerium-group lanthanide(III) nitrates with trialkylbenzylammonium nitrate in toluene

被引：0
|
作者：
Pyartman, AK [1 ]
Kovalev, SV [1 ]
Keskinov, VA [1 ]
机构：
[1] St Petersburg Technol Inst, St Petersburg, Russia
来源：
RADIOCHEMISTRY | 1997年 / 39卷 / 04期
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中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Extraction of cerium-group lanthanide(III) nitrates (La-Gd) with trialkylbenzylammonium nitrate in toluene at 298.15 K and pH 2 was studied. Extraction isotherms are described with regard to formation of the compounds (R4N)(i)[Ln(NO3)(3+i)] (i = 2, 3 for Pr, Nd, Sm, Eu, and Gd; i = 3, 4 for La and Ce) in the organic phase. Extraction constants were calculated They decrease in the La-Gd series.
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页码：349 / 352
页数：4
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