FIELD: metallurgy.
SUBSTANCE: invention can be used during production of rare-earth metals from lean or industrial raw materials using the ionic flotation. Method of praseodymium (III) salts extraction from nitrate solutions includes collector, i.e. sodium dodecyl sulphate, injection to the solution The sodium dodecyl sulphate is taken at concentration corresponding to reaction stoichiometry: PR+3+3C12H25OSO3Na = Pr[C12H25OSO3]3+3Na+, where Pr+3 is cation of praseodymium, C12H25OSO3Na is sodium dodecyl sulphate. Floatation is performed at pH from 6.0 to 7.0.
EFFECT: invention increases degree of extraction of praseodymium (III) cations to 99%.
2 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO EXTRACT HOLMIUM (III) CATIONS FROM NITRATE SOLUTIONS | 2011 |
|
RU2463370C1 |
| METHOD FOR EXTRACTING La (III) FROM AN AQUEOUS SOLUTION OF LANTHANUM (III) NITRATE OBTAINED DURING MONAZITE PROCESSING | 2021 |
|
RU2760693C1 |
| METHOD OF EXTRACTING CATIONS Eu FROM WATER-SALT SOLUTIONS | 2013 |
|
RU2548353C1 |
| PROCEDURE FOR EXTRACTION OF CATIONS OF YTTERBIUM FROM WATER SOLUTIONS OF SALTS | 2010 |
|
RU2424340C1 |
| METHOD OF EXTRACTING SAMARIUM (III) CATIONS | 2011 |
|
RU2481141C1 |
| METHOD OF EXTRACTING YTTRIUM (III) FROM SALT SOLUTIONS | 2011 |
|
RU2478724C1 |
| METHOD FOR HOLMIUM (III) SALT EXTRACTION FROM AQUEOUS SOLUTIONS | 2015 |
|
RU2616748C1 |
| METHOD FOR SEPARATION OF HOLMIUM (III) AND CERIUM (III) WITH AN ANIONIC SURFACTANT FROM AN AQUEOUS SOLUTION OF NITRATES THEREOF | 2020 |
|
RU2735017C1 |
| METHOD OF EXTRACTING Gd (3+) CATIONS BY SODIUM DODECYLSULFATE | 2018 |
|
RU2690129C1 |
| METHOD TO EXTRACT LANTHANUM La CATIONS FROM AQUEOUS SOLUTIONS | 2011 |
|
RU2463369C1 |
