FIELD: metallurgy.
SUBSTANCE: invention refers to method of rare-earth element (RRE) extraction from solutions and can be applied in technology of rare-earth element concentrate obtainment. Method of rare-earth element sorption extraction from solutions includes two stages. At the first stage, chelating subacid cation exchanger Cybber CRX 300 is used at pH 0.7-4.0 and phase contact duration of 1.0-3.0 hours. At the second stage, phosphor-containing cation exchanger Purolite S-957 is used at pH 2.0-4.0 and phase contact duration of 2.0-3.0 hours.
EFFECT: increased capacity and selectivity of cation exchangers and REE extraction degree, reduced duration of process.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SORPTION EXTRACTION OF RARE-EARTH ELEMENTS FROM PULPS | 2015 |
|
RU2610203C1 |
| METHOD OF SORPTION EXTRACTION OF RARE-EARTH ELEMENTS FROM PULPS | 2015 |
|
RU2610201C1 |
| METHOD FOR SORPTIVE EXTRACTION OF RARE-EARTH ELEMENTS FROM SOLUTIONS | 2014 |
|
RU2579327C1 |
| METHOD OF EXTRACTING RARE EARTH METALS FROM NITROPHOSPHATE SOLUTION IN NITRIC ACID PROCESSING OF APATITE CONCENTRATE | 2014 |
|
RU2559476C1 |
| METHOD OF EXTRACTING RARE-EARTH ELEMENTS FROM WET-PROCESS PHOSPHORIC ACID WHEN PROCESSING KHIBINY APATITE CONCENTRATES | 2011 |
|
RU2528692C2 |
| METHOD OF EXTRACTING RARE-EARTH ELEMENTS FROM PHOSPHOGYPSUM | 2016 |
|
RU2689631C2 |
| METHOD FOR SORPTION EXTRACTION OF RARE-EARTH ELEMENTS IN PRESENCE OF FLUORIDE IONS | 2023 |
|
RU2824510C1 |
| METHOD OF EXTRACTING SCANDIUM FROM SCANDIUM-BEARING MATERIAL | 2014 |
|
RU2582425C1 |
| METHOD OF ION-EXCHANGE CHROMATOGRAPHIC SEPARATION OF LUTECIUM AND YTTERBIUM | 2014 |
|
RU2574921C1 |
| METHOD OF EXTRACTING SCANDIUM AND RARE-EARTH ELEMENTS FROM RED MUD | 2015 |
|
RU2603418C1 |
