FIELD: hydrometallurgy.
SUBSTANCE: invention relates to the hydrometallurgy of uranium and thorium and can be used for sorption extraction of thorium from nitrate solutions of uranium and thorium by the ion exchange method. A method for sorption extraction of thorium from nitrate solutions of uranium and thorium, including the sorption of thorium on a sulfonic cation exchanger followed by washing the cation exchanger, characterized in that the sulfonic cation exchanger is preliminarily saturated with uranium before sorption of thorium, and after washing the cation exchanger, thorium is sorbed at a thorium concentration in the solution not exceeding 30 mg/l, and the consumption of a nitrate solution of uranium and thorium 0.75-1.0 l per 1.0 l of sulfonic cation exchanger per hour.
EFFECT: method provides a high degree of extraction of thorium from uranium-containing solutions without contamination with foreign impurities and allows the use of ion-exchange resins with a low degree of selectivity.
4 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF THORIUM RECOVERY AND CONCENTRATION FROM PROCESS SOLUTIONS | 2001 |
|
RU2207393C1 |
| METHOD FOR SORPTION DECONTAMINATION OF LOW-ACTIVITY LIQUID WASTES FROM STRONTIUM | 2000 |
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| METHOD OF EXTRACTING RHENIUM FROM URANIUM SOLUTIONS | 2016 |
|
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| METHOD OF SORPTION SEPARATING OF SCANDIUM AND THORIUM | 0 |
|
SU1424174A1 |
| METHOD FOR EXTRACTION BY SORPTION AND REMOVING IONS OF NON-FERROUS METALS FROM THALLIUM | 2003 |
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RU2251583C1 |
| METHOD FOR RECOVERING SCANDIUM FROM SOLUTIONS CONTAINING SCANDIUM AND THORIUM IMPURITIES | 0 |
|
SU703929A1 |
| METHOD OF PRODUCING SCANDIUM OXIDE | 2015 |
|
RU2608033C1 |
| METHOD OF CHROMATOGRAPHIC FRACTIONATION OF RARE-EARTH AND TRANSPLUTONIUM ELEMENTS | 2001 |
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RU2211721C2 |
| COMPLEX PROCESSING METHOD OF CARBON-SILICIC BLACK-SHALE ORES | 2011 |
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RU2477327C1 |
