FIELD: chemistry.
SUBSTANCE: method involves extraction of gold by concentrating a solution with an organic extraction agent containing a chemical solution with guanidine functional groups in an organic diluent. After extraction, the aqueous solution is separated from the organic extraction agent. Contact during extraction is realised using an organic extraction agent in form of a solution which contains a reagent composition with guanidine functional groups with aliphatic or aromatic amines.
EFFECT: quantitative extraction of the gold cyanide complex from aqueous solutions in a wide range of concentrations of alkali with pH 8-13.
5 cl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REMOVING TOXIC CYANIDES AND HEAVY METALS FROM ALKALI SOLUTIONS | 1994 |
|
RU2131284C1 |
| METHOD FOR SEPARATING NOBLE METAL FROM ALKALINE AQUEOUS CYANIDE SOLUTION AND ION-CHANGING RESIN WITH GUANIDINE FUNCTIONALITY | 1990 |
|
RU2046628C1 |
| METHOD OF EXTRACTION OF NOBLE METALS FROM ALKALINE CYAN SOLUTIONS | 0 |
|
SU1831508A3 |
| METHOD OF EXTRACTING GOLD FROM ALKALINE CYANIDE SOLUTIONS | 2014 |
|
RU2557866C1 |
| METHOD OF RECOVERING PRECIOUS METAL FROM AQUEOUS ALKALI CYANIDE SOLUTIONS | 1993 |
|
RU2114924C1 |
| METHOD OF NOBLE METALS EXTRACTION FROM ORES, ORE CONCENTRATES OR TAILING WASTES | 1990 |
|
RU2069235C1 |
| METHOD FOR PROCESSING WASTES CONTAINING COPPER, ZINC, SILVER AND GOLD | 1996 |
|
RU2109076C1 |
| METHOD OF EXTRACTION METALS OUT OF COMPLEX ORES, CONTAINING PRECIOUS METALS | 2007 |
|
RU2336343C1 |
| METHOD OF EXTRACTION PHOTOMETRY ANALYSIS OF GOLD | 0 |
|
SU1624315A1 |
| METHOD OF EXTRACTING GOLD AND SILVER FROM AQUEOUS SOLUTIONS | 0 |
|
SU1028005A1 |
