EXTRACTION MIXTURE FOR SUPERCRITICAL EXTRACTION OF ACTINIDE OXIDES

摘要

FIELD: supercritical and subcritical extraction of metals; actinide extraction. ^ SUBSTANCE: proposed extraction mixture incorporates beta-diketone and additional chelate in solvent. Used as solvent is mixture incorporating liquid solvent or supercritical fluid and as additional chelate, oxygen-containing organic compounds undecomposable in the course of distillation at normal pressure, such as ethers, esters, lower acid amides, and ketones. Chelates used for the purpose can be easily reconditioned and reused. ^ EFFECT: reduced amount of waste water in recovering of irradiated fuel. ^ 3 cl