Design and synthesis of a novel soft-hard donor ligand for solvent extraction of Th(IV) from nitric acid media
| Autor: | Yongdong Jin, Chuanqin Xia, Jie Ding, Yalin Huang, Fengfeng Xiao, Rulei Wu, Ning Pan, Long Li |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Stripping (chemistry)
010405 organic chemistry Ligand Health Toxicology and Mutagenesis Extraction (chemistry) Inorganic chemistry Public Health Environmental and Occupational Health Thorium chemistry.chemical_element Actinide 010402 general chemistry 01 natural sciences Pollution Nitrogen 0104 chemical sciences Analytical Chemistry Ion chemistry.chemical_compound Nuclear Energy and Engineering chemistry Nitric acid Radiology Nuclear Medicine and imaging Spectroscopy Nuclear chemistry |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 312:655-662 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-017-5263-5 |
| Popis: | A novel hard-soft donor ligand 2,2′,2″,2‴-(((ethane-1,2-diylbis(azanediyl))bis(2-oxoethane-2,1-diyl))bis(azanetriyl))tetrakis(N,N-dibutylacetamide) (L), containing eight nitrogen atoms and six oxygen atoms, was rationally designed and synthesized for the extraction of Th(IV) from nitric acid solution. Solvent extraction studies including the effects of extraction time, acidity, nitrate ions, temperature, the concentration of ligand L, mixed ions and stripping agents on extraction behavior of Th(IV) were carried out. The results show that L exhibits higher extraction efficiency for Th(IV) than those of U(VI) over a wide range of HNO3 concentrations. Slope analysis indicates that Th(IV) is extracted as the extracted complex with a thorium/L ratio of 1:1. In addition, Th(IV) can be selectively extracted from mixed ions and easily stripped by using 2.0 mol/L Na2CO3 solution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|