Solvent Extraction of Lanthanum(III) and Europium(III) from Nitrate Media by Aminooctyldimethylene Diphosphonic Acid

IF 0.6 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Solvent Extraction Research and Development, Japan Pub Date : 2016-01-01 DOI:10.15261/SERDJ.23.51

Imane Boulenouar, M. Kaid, Okkacha Abbes, D. Villemin

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引用次数: 4

Abstract

The solvent extraction of lanthanum(III) and europium(III) by aminooctyldimethylene diphosphonic acid from nitrate media was investigated. The extraction percent of lanthanum(III) and europium(III) was measured as a function of various parameters such as: volume ratio, shaking time, the concentration of aminooctyldimethylene diphosphonic acid, ionic strength and media pH. The metal concentration in the aqueous phase before and after extraction was determined spectrophotometrically by the Arsenazo III method. The extracted species and equilibrium extraction equations were determined by the slope analysis method. It was found that adding KNO3 at a concentration of 0.1 M significantly enhances the extraction yield for lanthanum(III) and europium(III). Decreasing the media pH caused a gradual decrease of extraction yields. The obtained results showed that extraction of lanthanum(III) and europium(III) from nitrate media using aminooctyldimethylene diphosphonic acid in chloroform is quantitative under well-defined conditions.

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氨基辛基二亚甲基二膦酸萃取硝酸介质中镧(III)和铕(III)的研究

研究了氨基辛基二亚甲基二膦酸从硝酸介质中萃取镧(III)和铕(III)的工艺。测定了镧(III)和铕(III)的提取率与体积比、振荡时间、氨基辛基二亚甲基二膦酸浓度、离子强度、介质ph等参数的函数关系。采用偶氮胂III法测定了萃取前后水相中金属的浓度。采用坡度分析法确定了提取物的种类和平衡提取方程。结果表明，加入0.1 M浓度的KNO3可显著提高镧(III)和铕(III)的萃取率。随着培养基pH的降低，萃取率逐渐降低。结果表明，在规定的条件下，氨基辛基二亚甲基二膦酸在氯仿中从硝酸介质中提取镧(III)和铕(III)是定量的。

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来源期刊

Solvent Extraction Research and Development, Japan 工程技术-工程：化工

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

1 months

期刊介绍： Solvent Extraction Research and Development, Japan (Solvent Extr. Res. Dev., Jpn.) is a periodical issued from Japan Association of Solvent Extraction (JASE) containing papers dealing with all aspects of solvent extraction and their related methods, underlying principles, and materials. Original articles, notes, technical reports, and critical reviews will be considered for publication. Original articles must be of reasonably broad scope and significance to the solvent extraction. Notes will originally describe novel work of a limited nature or especially significant work in progress. Authors can contribute some information of novel techniques, equipment or apparatus, reagents and diluents for solvent extraction as technical reports. Critical reviews will be received from the authors to whom the editorial committee asked to contribute.