FIELD: rare metal technology.
SUBSTANCE: invention relates to hydrometallurgy of rare elements, in particular gallium, and can be used for recovering gallium from alumina production solutions. Recovery comprises extraction of gallium from alkali solutions with N-(2-hydroxy-5-nonylbenzyl)-β,β-dihydroxyethylamine solution in n-octanol followed by separation of gallium and aluminum in the re-extraction stage using various-concentration (2 to 3 M) HCl solutions. Degree of gallium recovery achieves ~94-99% at NaOH concentration 0.5 to 5 M from individual solutions and 58% from solutions containing 0.3 g/L Ga, ~30 g/L Al, and 3.9 M NaOH.
EFFECT: increased gallium extraction velocity and yield.
4 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR SEPARATION OF GALLIUM FROM ALUMINIUM | 2015 |
|
RU2586168C1 |
| METHOD OF VANADIUM EXTRACTION | 2008 |
|
RU2358029C1 |
| METHOD OF SEPARATING SCANDIUM FROM TITANIUM | 2001 |
|
RU2205242C1 |
| METHOD OF EXTRACTING GERMANIUM FROM SOLUTIONS | 2008 |
|
RU2363749C1 |
| PROCEDURE FOR SEPARATION OF SCANDIUM FROM MANGANESE | 2009 |
|
RU2416655C1 |
| EXTRACTION METHOD OF GERMANIUM FROM SULFURIC SOLUTIONS | 2008 |
|
RU2378402C2 |
| METHOD FOR SEPARATING COPPER,NICKEL AND COBALT FROM AMMONIA SOLUTIONS | 0 |
|
SU1111995A1 |
| VANADIUM EXTRACTION METHOD | 2020 |
|
RU2748195C1 |
| METHOD FOR EXTRACTION OF SCANDIUM OF SOLUTIONS OF ALUMINIUM CHLORIDE | 1993 |
|
RU2081831C1 |
| METHOD FOR COLUMBITE CONCENTRATE PROCESSING | 2014 |
|
RU2576562C1 |
