FIELD: waste processing and disposal.
SUBSTANCE: invention relates to the field of development of effective extraction agents for extraction of long-lived radionuclides, particularly cesium and americium, from alkaline media and can be used in extraction technologies of alkali radioactive wastes processing. An extraction mixture containing p-isononylkalix[6 or 8]arene dissolved in a mixed organic solvent containing limiting hydrocarbon and a polar organic component in amount of 5–20 % by volume is used.
EFFECT: invention enables to develop an extraction mixture for combined extraction of cesium and americium from alkaline solutions with a higher degree of recovery, suitable, including for extraction processing of RAW.
3 cl, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| EXTRACTION MIXTURE FOR EXTRACTING AMERICIUM AND EUROPIUM FROM CARBONATE-ALKALINE SOLUTIONS | 2016 |
|
RU2645990C1 |
| METHOD OF SELECTIVE EXTRACTION OF RADIONUCLIDES FROM RADIOACTIVE NITRIC ACID SOLUTIONS (VERSIONS) | 2012 |
|
RU2522544C2 |
| METHOD OF EXTRACTING AMERICIUM FROM LIQUID RADIOACTIVE WASTES AND SEPARATION OF RARE-EARTH ELEMENTS | 2015 |
|
RU2603405C1 |
| EXTRACTION MIXTURE FOR SEPARATING TRANSURANIC AND RARE-EARTH ELEMENTS FROM ACIDIC AND SALINE MEDIA | 2009 |
|
RU2400845C1 |
| EXTRACTING MIXTURE FOR SIMULTANEOUS SEPARATION OF RADIONUCLIDES FROM LIQUID RADIOACTIVE WASTES (ALTERNATIVES) | 1999 |
|
RU2163403C2 |
| METAL RE-EXTRACTION METHOD | 2002 |
|
RU2235375C2 |
| EXTRACTION MIXTURE FOR EXTRACTION OF ACTINIDES FROM NITRIC ACID SOLUTIONS | 2015 |
|
RU2620583C2 |
| EXTRACTION MIXTURE FOR THE ISOLATION OF CAESIUM AND/OR STRONTIUM FROM NITRIC ACID SOLUTIONS | 2021 |
|
RU2781791C1 |
| PROCEDURE FOR EXTRACTING SALTS OF ALKALI METALS AND SILVER OUT OF WATER SOLUTIONS | 2008 |
|
RU2389812C2 |
| METHOD OF EXTRACTION PROCESSING OF HIGH-ACTIVE WASTES WITH FRACTIONATING OF RADIONUCLIDES | 2007 |
|
RU2355057C1 |
