FIELD: metallurgy.
SUBSTANCE: as an extracting agent, hydrazides are used, which are based on synthetic α-branched tertiary carboxylic acids of common formula: CH3R1R2CC(O)NHNH2, where R1 and R2 are alkyl radicals, and sum of carbon atoms is equal to 10-19. At that, at extraction the extracting agent is taken in the form of 0.2-0.4 mol/l of the solution mixed with hydrocarbon solvent with 10 vol. % of 2-ethylhexanol.
EFFECT: high degree and selectivity of extraction of nickel in presence of iron, cobalt or zinc.
6 cl, 2 dwg, 9 tbl, 10 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF EXTRACTING COPPER (II), NICKEL (II) AND/OR COBALT (II) IONS FROM WEAKLY ACIDIC AND AQUEOUS AMMONIA SOLUTIONS | 2011 |
|
RU2472864C1 |
| METHOD FOR RECOVERING COPPER (II) BY EXTRACTION FROM AQUEOUS SULFURIC SOLUTIONS CONTAINING OTHER METALS | 2017 |
|
RU2668238C1 |
| METHOD OF EXTRACTION OF RARE EARTH ELEMENTS (+3) FROM ACIDIC WATER SOLUTIONS CONTAINING OTHER METALS AND IONS | 2019 |
|
RU2748007C1 |
| COBALT AND NICKEL SEPARATION METHOD | 2013 |
|
RU2540257C1 |
| METHOD OF EXTRACTING CHROMIUM ( VI ) FROM AQUEOUS SOLUTIONS | 2008 |
|
RU2383380C1 |
| METHOD OF EXTRACTING RHENIUM (VII) IONS FROM AQUEOUS SOLUTIONS | 2008 |
|
RU2382670C1 |
| PROCEDURE FOR PROCESSING RESIDUES OF CARBONYL NICKEL SYNTHESIS | 2009 |
|
RU2398030C1 |
| METHOD OF EXTRACTING LEAD FROM NICKEL-CONTAINING CHLORIDE SOLUTION | 2015 |
|
RU2600041C1 |
| METHOD OF EXTRACTING TUNGSTEN (VI) AND/OR MOLYBDENUM (VI) IONS FROM AQUEOUS SULPHATE SOLUTIONS | 2009 |
|
RU2405049C1 |
| METHOD FOR COBALT EXTRACTING FROM SULFATE SOLUTION CONTAINING NICKEL AND COBALT | 2016 |
|
RU2617471C1 |
