Title: Extraction and separation of thorium(IV) and protactinium(V) by 2-carbethoxy-5-hydroxy-1-(4-tolyl)-4-pyridone
Abstract: Extraction of thorium(IV) and protactinium(V) from hydrochloric acid solutions by 2-Carbethoxy-5-hydroxy-1-(4-tolyl)-4-pyridone (HA) has been investigated. The separation of protactinium from thorium is described. The mechanism of thorium extraction has been studied. Regardless of the initial thorium concentration in the aqueous phase thorium passes into the organic phase only as ThClA3. HA. The composition of the extractable thorium complex was determined graphically from the dependence of the distribution ratios on the concentration of HA in the organic phase and on the hydrogen ion concentration in the aqueous phase, and was further confirmed by elemental analysis and by the i.r. spectra.
Publication Year: 1972
Publication Date: 1972-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 11
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