FIELD: metal recovery processes.
SUBSTANCE: process comprises keeping metal-containing matrix in high-pressure chamber within solvent medium in presence of water and fluorine-containing organic acid followed by accumulation of extracted metal in solution. Organic acid utilized is selected from di(octafluoroformyl)phosphoric acid, di(dodecafluoroheptyl)phosphoric acid, and mixture of acid with trialkyl phosphate. Solvent is used in its liquid state.
EFFECT: enabled recovery of radionuclides from solid phase.
2 cl, 4 tbl, 4 ex
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| EXTRACTION MIXTURE FOR SUPERCRITICAL EXTRACTION OF ACTINIDE OXIDES | 2005 |
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| EXTRACTING MIXTURE FOR SIMULTANEOUS SEPARATION OF RADIONUCLIDES FROM LIQUID RADIOACTIVE WASTES (ALTERNATIVES) | 1999 |
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