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Citation: WAGN Xianglan, YIN Heng, WANG Shanshan. Extraction of Samarium and Yttrium with 8-Hydroxyquinoline[J]. Chinese Journal of Applied Chemistry, ;2012, 29(1): 90-94. doi: 10.3724/SP.J.1095.2012.00062 shu

Extraction of Samarium and Yttrium with 8-Hydroxyquinoline

1.
Department of Chemistry and Environmental Engineering, Wuhan Bioengineering Institute, Wuhan 430415, China

Corresponding author: WAGN Xianglan,
Received Date: 21 February 2011
Available Online: 13 April 2011
Fund Project: 湖北省教育厅科学技术研究计划指导性项目(B20094007) (B20094007)武汉市市属高等学校科学研究项目(2008K018) (2008K018)

The solvent extraction of samarium and yttrium using 8-hydroxyquinoline(HQ)-n-heptane in nitric acid medium was systematically investigated including the effects of various parameters,such as HQ concentration,NO₃^- concentration and pH value in equilibrated aqueous solution on the distribution ratio of rare earth.The distribution ratio increased with the increase of HQ concentration and pH value and decreased with the increase of NO₃^- concentration.The formed complex was believed to be M(NO₃)Q(HQ)(OH) based on the results from slop method and charge balance.The complex extraction mechanism of samarium and yttrium by HQ in nitric acid was confirmed.
- hydroxyquinoline,
- samarium,
- yttrium,
- extraction mechanism,
- extraction constant
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