FIELD: chemistry.
SUBSTANCE: invention relates to a novel method of removing copper (II) ions from water in the presence of ammonia, which is based on using a floatation reagent in form of β-N-oxyethylhydrazides of aliphatic carboxylic acids of formula 
(I), where R is a straight-chain radical containing 7-14 carbon atoms.
EFFECT: method ensures high recovery ratio (up to 99,0%) of copper (II) from ammonia media in a single step with relatively low reagent consumption.
2 cl, 2 tbl, 10 ex, 2 dwg
| 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 |
| REAGENT FOR FLOATATION OF SULPHIDE COPPER-MOLYBDENUM ORE | 2008 |
|
RU2375118C1 |
| PARA-TERTBUTYLBENZOIC ACID "N', N'-DIALKYLHYDRAZIDES | 2010 |
|
RU2448174C1 |
| METHOD OF REMOVING HEAVY METAL IONS FROM WATER | 1998 |
|
RU2135418C1 |
| METHOD OF EXTRACTING METAL-CONTAINING USEFUL PLATFORM FROM METAL-CONTAINING ORE | 0 |
|
SU1419507A3 |
| FLOTATION OF RARE METAL AND TIN ORES | 0 |
|
SU1645024A1 |
| COLLECTOR FOR SULFIDE ORE FLOTATION | 0 |
|
SU833326A1 |
| METHOD FOR SYNTHESIS OF AMINOXYL ETHERS FROM SECONDARY AMINE OXIDES | 2001 |
|
RU2273634C2 |
| METHOD OF EXTRACTING DIAMONDS FROM GANGUE MINERALS | 2006 |
|
RU2412901C2 |
| METHOD OF EXTRACTING METAL-CONTAINING SULFIDE MINERALS OR SULFIDIZED METAL-CONTAINING OXIDIZED MINERALS FROM ORES | 0 |
|
SU1582978A3 |
