EXTRACTION FROM HNO3 SOLUTIONS AND SEPARATION OF PU(IV) FROM AM(III) BY DIPHENYL(DIALKYLCARBAMOYLMETHYL)PHOSPHINE OXIDES

Citation
Mn. Litvina et al., EXTRACTION FROM HNO3 SOLUTIONS AND SEPARATION OF PU(IV) FROM AM(III) BY DIPHENYL(DIALKYLCARBAMOYLMETHYL)PHOSPHINE OXIDES, Radiochemistry, 36(4), 1994, pp. 359-363
Citations number
19
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
ISSN journal
10663622
Volume
36
Issue
4
Year of publication
1994
Pages
359 - 363
Database
ISI
SICI code
1066-3622(1994)36:4<359:EFHSAS>2.0.ZU;2-1
Abstract
Five carbamoylmethylphosphine oxide (CMPO) extractants with phenyl sub stituents on the P atom and alkyl groups (butyl, octyl, isoamyl) or cy clic hydrocarbons (piperidine, morpholine) on the N atom are used to s tudy the extraction of Pu(N) from HNO3 solutions by CMPO in a polar ar omatic fluorinated diluent as a function of [HNO3] and [CMPO]. All stu died CMPOs quantitatively extract Pu(lV) from HNO3 with distribution c oefficients that are 2-3 orders of magnitude greater than those of Am( III). The elements Pu and Am can be separated during back-extraction.