Extraction of lanthanide(III) nitrates with composite solid extractants based on a polymeric support impregnated with trialkylmethylammonium nitrate or TBP |
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| Authors: | A K Pyartman V V Lishchuk V A Keskinov |
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| Affiliation: | (1) St. Petersburg State Technological Institute, Technical University, St. Petersburg, Russia |
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| Abstract: | Extraction of lanthanides(III) and Y(III) from 1–5 M aqueous NaNO3 with composite solid extractants based on a polymeric support impregnated with trialkylmethylammonium nitrate (Aliquat-336) or TBP was studied, and the extraction constants were determined. The extraction isotherms were analyzed assuming that lanthanides are extracted with the solid extractants in the form of complexes (R4N)2Ln(NO3)5] and Ln(NO3)3(TBP)3. |
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