## Abstract BACKGROUND: Diβ(2βethylhexyl)phosphoric acid (D2EHPA, H~2~A~2~) has been used extensively in hydrometallurgy for the extraction of rare earths, but it has some limitations. Synergistic extraction has attracted much attention because of its enhanced extractabilities and selectivities. In
On the Crystal Structure of Rare Earth Complexes with 2-Ethylhexyl Phosphoric Acids
β Scribed by L. N. Bozukov; Dr. M. M. Milanova; Assoc. Prof. D. S. Todorovsky
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 244 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0232-1300
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## Abstract The synergistic extraction of rare earths (La, Nd, Gd, Y and Yb) with a mixture of 2βethylhexyl 2βethylhexylphosphonate (EHEHPA) (HA) and trialkylphosphine oxide (Cyanex 923) (B) from a hydrochloride medium was investigated. The mixed system significantly enhances the extraction efficie
## Abstract For Abstract see ChemInform Abstract in Full Text.
The lanthanide nitrate complexes with 13-crown-4(13-C-4) have been prepared in AcOEt. These new complexes with the general formula Ln(N03),.(13-C-4) (Ln = La-Nd, Sm-Lu) have been characterized by means of elemental analysis, IR and 'H-NMR spectra, conductivity measurements, and TG-DTA techniques. Th