FIELD: hydrometallurgy.
SUBSTANCE: invention can be used for extraction of indium from process solutions obtained by processing solutions of lead-zinc production, waste liquid crystal displays, zinc and copper ores, as well as other industrial products of non-ferrous metallurgy. Indium is extracted from sulphuric acid solutions by extraction with an organic phase containing di(2-ethylhexyl)phosphoric acid in a diluent, followed by re-extraction with a solution of sulphuric acid with a chloride-containing reagent. In this case, extraction is carried out in the presence of 2-ethylhexyl alcohol and an aliphatic diluent is used, with the ratio of components, vol.%: di(2-ethylhexyl)phosphoric acid - 15-20, 2-ethylhexyl alcohol - 5-10, aliphatic diluent - 70 -80.
EFFECT: improved process efficiency, reduced density and viscosity of the organic phase, and improved phase separation.
1 cl, 2 dwg, 5 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF RECOVERING INDIUM FROM ZINC SULFATE SOLUTIONS | 2000 |
|
RU2186139C2 |
| METHOD OF RECOVERING INDIUM FROM SULFATE ZINC SOLUTIONS | 2003 |
|
RU2238994C1 |
| METHOD OF SELECTIVE EXTRACTION OF INDIUM FROM SULFURIC SOLUTIONS | 2008 |
|
RU2359050C1 |
| METHOD OF EXTRACTING SCANDIUM CONCENTRATE FROM SCANDIUM-CONTAINING ACIDIC SOLUTIONS | 2018 |
|
RU2685833C1 |
| METHOD FOR INDIUM CONCENTRATION FROM ZINC SULFATE SOLUTIONS | 1993 |
|
RU2048563C1 |
| EXTRACTANT FOR EXTRACTION OF INDIUM | 2004 |
|
RU2275438C1 |
| EXTRACTANT FOR EXTRACTING NITRIC ACID FROM AQUEOUS SOLUTIONS | 2015 |
|
RU2596624C1 |
| EXTRACTANT FOR EXTRACTING METALS AND METHOD FOR PRODUCING IT | 2003 |
|
RU2260063C2 |
| METHOD OF RECOVERING INDIUM FROM ACID SOLUTIONS | 2001 |
|
RU2186141C1 |
| METHOD FOR EXTRACTING TIN RADIONUCLIDES FROM SOLUTIONS OF MINERAL AND ORGANIC ACIDS, AS WELL AS SALTS THEREOF | 2008 |
|
RU2412907C2 |
