Americium and europium extraction from carbonate solutions by 1-phenyl-3-methyl-4-benzoylpyrazolone -5

Journal Article · Mon Sep 01 00:00:00 EDT 1986 · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:7032618

Karalova, Z K; Deviris, E A; Fedorov, L A; Myasoedov, B F; Rukov, M S

Trivalent TPEs and REEs are extractable from carbonate solutions by 1-pheny-3-methyl-4-benzoylpyrazolone-5 (PMBP). The effect of concentration of KHCO/sub 3/ and K/sub 2/CO/sub 3/, extractant, metal, and other factors on the extent of extraction of the elements has been clarified. The kinetics of extraction of the elements from carbonate solutions has been studied. It has been shown that in the KHCO/sub 3/ concentration range 0.2-2.0 M americium and europium are extracted by PMBP solutions in different diluents with distribution coefficients lying within n x 10/sup 2/-n x 10/sup 3/. From K/sub 2/CO/sub 3/ solutions the elements are extracted better by PMBP solutions in methyl isobutyl ketone (MIBK). It has been shown that metal concentration in the range 1x10/sup -5/. 5x10/sup -3/ g-ion x liter/sup -1/ does not affect extraction (log E = 3). Extracts based on PMBP with a metal content higher than 5x10/sup -3/g-ion x liter/sup -1/ were obtained by absolute concentrating method and were used for the study of /sup 13/C NMR spectra. The composition of thecompounds extracted by PMBP from carbonate solutions was determined by /sup 13/C NMR spectroscopy and extraction. The conditions of europium and americium reextraction from extracts based on PMBP by complexones, their mixtures with alkalis and other substances were studied. The scopes for using the system PMBP-carbonate solutions to separate and concentrate TPEs and REEs has been examined.

• OSTI ID: 7032618
• Journal Information: Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 28:1; ISSN SVRDA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
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CHLORINE COMPOUNDS
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EUROPIUM
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EUROPIUM CARBONATES
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EUROPIUM ISOTOPES
EVEN-ODD NUCLEI
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HALOGEN COMPOUNDS
HEAVY NUCLEI
HETEROCYCLIC COMPOUNDS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LUTETIUM 177
LUTETIUM CHLORIDES
LUTETIUM COMPOUNDS
LUTETIUM ISOTOPES
METALS
MINUTES LIVING RADIOISOTOPES
NMR SPECTRA
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
OXYGEN COMPOUNDS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
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YEARS LIVING RADIOISOTOPES
YIELDS
YTTERBIUM 169
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