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Pu(IV)-EXTRACTION WITH ALIPHATIC KETONES (in Czech)

Journal Article · · Jaderna Energie
OSTI ID:4796340
The extraction capacity of some aliphatic ketones with direct and branched chain for Pu(IV) was investigated. The extraction was carried out using the following compounds: methyl-n-propylketone, methyl-n-butylketone, Methyl- isobutylketone, methyl-tert, butylketone, methyl-namylketone, methyl-n- hexylketone, ethyl-n-butylketone, and di-n-propylketone, in solutions with starting concentrations 0,3 -- 8 N of HNO/sub 3/ in the aqueous phase. Factors influencing the extraction efficiency of ketones were of several types. The extraction efficiency of ketones of the same structural type decreases with the increasing length of the chain. The Pu(IV)-extraction with branched chain ketones was worse than with isomeric ketones with direct chain. Methyl- nalkylketones were the most efficient extractants between isomeric compounds. The extraction efficiency of ketones is discussed from the point of view of steric and inductive influence of the side chain on the oxygen atom of the carbonyl group. The mechanism of the Pu(IV)-extraction with methylisobutylketone was investigated in more detail. Pu(IV) was extracted from 1.5 N HNO/sug 3/ into the organic phase mostly in the form of Pu(NO/sub 3/)/sub 4/. The ration of acidocomplexes in the organic phase increased with increasing acidity. The organic phase contained only H/sub 2/Pu(NO/sub 3/)6 in the extraction from 6 N HNO/sub 3/ and the corresponding aqueous phase contained partly dissociated HPu(NO/sub 3/)/sub 5/ and
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-17-000239
OSTI ID:
4796340
Journal Information:
Jaderna Energie, Journal Name: Jaderna Energie Vol. Vol: 8
Country of Publication:
Country unknown/Code not available
Language:
Czech

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Related Subjects

ACIDITY
CHEMISTRY
EFFICIENCY
ISOMERS
KETONES
NITRIC ACID
PLUTONIUM
PLUTONIUM COMPLEXES
PLUTONIUM NITRATES
REACTION KINETICS
SOLUTIONS
SOLVENT EXTRACTION
WATER