FIELD: chemistry.
SUBSTANCE: invention relates to a method of extracting gold, particularly sorption of gold from aqueous cyanide solutions. A method of extracting gold from alkaline cyanide solutions includes contacting aqueous gold cyanide solution with an anionite containing amino groups. To provide sorption at high pH values, water-soluble salts of unsubstituted guanidine are added to the gold solution. Sorption is carried out at molar ratio of gold to guanidine of 1:2÷10.
EFFECT: high selectivity and quantitative extraction of complex gold cyanide from aqueous solutions, the pH of which is close to that of production solutions.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| EXTRACTION METHOD OF GOLD FROM ORES AND PRODUCTS OF THEIR PROCESSING | 2012 |
|
RU2490344C1 |
| SORBENT OBTAINING METHOD FOR EXTRACTION OF GOLD IONS | 2018 |
|
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| MIXED BASICITY ANIONITE FOR SORPTION OF NOBLE METALS FROM CYANIDE SOLUTIONS AND PULP | 2010 |
|
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| METHOD OF PRODUCING EASILY REGENERATED IONITE | 2012 |
|
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| METHOD FOR SEPARATE ISOLATION OF GOLD AND MERCURY FROM CYANIDE SOLUTIONS | 2021 |
|
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| METHOD OF RECOVERY OF GOLD AND/OR SILVER FROM CYANIDE SOLUTIONS AND PULPS | 1999 |
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| METHOD OF EXTRACTING GOLD USING MACROPOROUS RESINS | 2011 |
|
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| METHOD FOR ION EXCHANGER PREPARATION FOR GOLD SORPTION | 2016 |
|
RU2615522C1 |
| PROCEDURE FOR SORPTION EXTRACTION OF VALUABLE METALS | 2009 |
|
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| METHOD OF RECOVERING GOLD FROM ORES CONTAINING SOLUBLE ZINC COMPOUNDS | 1992 |
|
RU2095449C1 |
