FIELD: metallurgy.
SUBSTANCE: invention relates to a process for the recovery of metals in the form of zinc (II), copper (II) and cobalt (II) from aqueous solutions of hydrochloric acid. The method includes extraction with bromides of prop-2-ynyl-, but-2-ynyl, oct-2-ynyltrioctylammonium dissolved in toluene. Zinc (II), copper (II), cobalt (II) in aqueous hydrochloric acid solution are extracted with toluene solution of prop-2-ynyl-, but-2-ynyl, oct-2-ynyltrioctylammonium bromides, which form complexes with each of the metals. The contact time of the organic and aqueous phases during extraction is 0.5-1 min. The re-extraction of zinc (II), copper (II), cobalt (II) is carried out with distilled water.
EFFECT: reduction of the extraction time of these metals in one extraction cycle with toluene solutions and reduction of the time and number of reagents required for the re-extraction of these metals.
4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EXTRACTION OF PALLADIUM FROM WATER SOLUTIONS OF METAL SALTS | 2014 |
|
RU2574266C1 |
| METHOD OF EXTRACTING COPPER (II), NICKEL (II) AND/OR COBALT (II) IONS FROM WEAKLY ACIDIC AND AQUEOUS AMMONIA SOLUTIONS | 2011 |
|
RU2472864C1 |
| EXTRAGENT BASED ON PARTIALLY FLUORINATED TRIALKYLAMINE AND METHOD FOR EXTRACTION OF METALS AND ACIDS FROM WATER-SALT SOLUTIONS | 2017 |
|
RU2674371C1 |
| EXTRACTION OF HEAVY METAL IONS | 2012 |
|
RU2525307C2 |
| METHOD OF EXTRACTING IRIDIUM AND RHODIUM | 0 |
|
SU698492A1 |
| METHOD FOR SELECTIVE EXTRACTION OF ZINC (II) AND COPPER (II) FROM AQUEOUS SOLUTIONS | 2019 |
|
RU2702886C1 |
| METHOD OF SELECTIVE EXTRACTION OF INDIUM FROM SULPHATE ZINC SOLUTIONS | 2016 |
|
RU2635584C2 |
| METHOD OF EXTRACTING COPPER (II) IONS FROM AMMONIA SOLUTIONS | 2014 |
|
RU2571741C1 |
| METHOD FOR EXTRACTING NICKEL (II) FROM WATER ACID SOLUTIONS CONTAINING OTHER METALS | 2011 |
|
RU2485191C1 |
| METHOD FOR RECOVERING COPPER (II) BY EXTRACTION FROM AQUEOUS SULFURIC SOLUTIONS CONTAINING OTHER METALS | 2017 |
|
RU2668238C1 |
