FIELD: hydrometallurgy, chemical technology.
SUBSTANCE: invention proposes octanoic acid-base extractant in organic solvent that comprises additionally nitrogen-containing oligomeric para-tert.-butylphenol in the molar ratio of reagents octanoic acid : oligomeric para-tert.-butylphenol = (1.5-2.5):(2.5-1.5). Using this extractant allows enhancing the distribution coefficient for indium and separation of indium and zinc, to carry out extraction from the parent solutions with pH = 2.4-2.8 and to re-extract indium with sulfuric acid in the concentration 0.5 mole/l with effectiveness of extraction ˜99%. Invention can be used for extraction, purification and concentrating indium in processing leaching indium-containing waste solutions and concentrates, for example, from zinc sulfate solutions.
EFFECT: improved and valuable properties of extractant.
1 tbl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR SEPARATING INDIUM AND GALLIUM FROM ACID SULFATE SOLUTION | 2005 |
|
RU2280090C1 |
| METHOD OF SELECTIVE EXTRACTION OF INDIUM FROM SULPHATE ZINC SOLUTIONS | 2016 |
|
RU2635584C2 |
| METHOD OF EXTRACTING LACTIC ACID FROM FERMENTATION SOLUTIONS | 2012 |
|
RU2513081C1 |
| METHOD OF SELECTIVE EXTRACTION OF INDIUM FROM SULFURIC SOLUTIONS | 2008 |
|
RU2359050C1 |
| METHOD FOR ZINC SULPHATE SOLUTIONS CLEANING FROM CHLORIDE ION | 2015 |
|
RU2610500C1 |
| METHOD FOR EXTRACTION OF COBALT FROM CHLORIDE SOLUTIONS CONTAINING NICKEL AND IMPURITY METALS | 2005 |
|
RU2293129C1 |
| METHOD OF EXTRACTING INDIUM FROM SOLUTIONS OF LEAD-ZINC INDUSTRY | 0 |
|
SU1308559A1 |
| METHOD FOR EXTRACTION OF GOLD FROM AQUA REGIA AND HYDROCHLORIC ACID SOLUTIONS | 1990 |
|
RU1741436C |
| METHOD FOR EXTRACTING TIN RADIONUCLIDES FROM SOLUTIONS OF MINERAL AND ORGANIC ACIDS, AS WELL AS SALTS THEREOF | 2008 |
|
RU2412907C2 |
| METHOD FOR EXTRACTING INDIUM FROM SULPHURIC ACID SOLUTIONS | 2022 |
|
RU2812245C1 |
