Separation of trivalent actinides from lanthanides in an acetate buffer solution using Cyanex 301

Autor:	Dean R. Peterman, Jack D. Law, Richard D. Tillotson, Terry A. Todd
Rok vydání:	2006
Předmět:	Lanthanide chemistry.chemical_compound Acetic acid chemistry Reagent Inorganic chemistry Extraction (chemistry) Actinide Buffer solution Physical and Theoretical Chemistry Ammonium acetate Nuclear chemistry Separation process
Zdroj:	Radiochimica Acta. 94:261-266
ISSN:	2193-3405 0033-8230
Popis:	SummaryThe separation of trivalent actinides from the lanthanides using the active extractant in the Cyanex 301 reagent, bis(2,4,4-trimethylpentyl)dithiophosphinic acid, was studied. Specifically, the extractant was studied with an ammonium acetate/acetic acid buffered feed that would result from a transuranic separation process utilizing an ammonium acetate strip solution. Separation factors of241Am from154Eu with this extractant, as a function of total acetate concentration and pH, have been measured. Additionally, the extraction behavior of stable La, Ce, Pr, Nd, Sm and Eu was measured. Separation factors were typically very high for Am from Eu at a pH ranging from 3.8 to 5.8 and a total acetate concentration ranging from 0.2 M to 1.0 M. However, separation factors across the lanthanide series varied considerably and resulted in separation of the lighter lanthanides from the heavier lanthanides at the higher pH′s.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b5d398010351bd12c8eac1ebd91ca740 https://doi.org/10.1524/ract.2006.94.5.261 Zobrazit plný text záznamu