FIELD: chemistry.
SUBSTANCE: invention relates to chemical engineering of extracting radionuclides. An extraction agent for extracting actinides in oxidation states +4 and +6 from nitric acid solutions contains tributylphosphate in formals of fluorinated alcohols with volume ratio of formal in the extraction mixture between 50% and 80%.
EFFECT: efficient extraction of actinides in oxidation states +4 and +6 from nitric acid solutions, re-extraction with nitric acid solutions with sufficiently high concentration.
1 tbl, 6 ex
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Authors
Dates
2010-09-27—Published
2009-01-11—Filed