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Solid-Liquid Extraction, Separation, and Determination of Rare Earths With Di-(2-Ethylhexyl)Phosphoric Acid

 

作者: Jing-Guo Hou,   Xin-Zhen Du,   Su Zhao,   Jing-Wan Kang,   Jin-Zhang Gao,  

 

期刊: Analytical Letters  （Taylor Available online 1995）
卷期: Volume 28, issue 3  

页码: 555-561

 

ISSN:0003-2719

 

年代: 1995

 

DOI:10.1080/00032719508001115

 

出版商: Taylor & Francis Group

 

关键词: Rare Earths;Di-(2-ethylhexyl)phosphoric Acid (DEHP);Solid-Liquid Extraction

 

数据来源: Taylor

 

摘要:

The extraction behavior of rare earths has been studied with di-(2-ethylhexyl)phosphoric acid (DEHP) in paraffin, naphthalene, and biphenyl. The group separation of rare earths with DEHP was further examined in paraffin. In the presence of 0.3 mol/L HNO3and 2.0 mol/L DEHP, light rare earths can be separated from heavy ones in rare earth ores. Quantitative analysis of the rare earths was then done by spectrophotometry.

 

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