FIELD: hydraulic metallurgy of noble metals, possibly processes of sorption type extraction of gold from productive solutions of underground, heap and agitation leaching of ores.
SUBSTANCE: process comprises steps of treating gold-saturated anion-exchange resin by means of mineral acid solution; desorbing and washing out resin. Desorption is realized by means of sodium sulphite solutions with pH 4.5 - 6.5 and concentration 50 - 200 g/l. Washing out of resin is realized by means of solutions of sodium chloride with concentration 100 - 200 g/l. Washing out solution of sodium chloride containing sodium sulphite is used in return cycle as desorbent after final stabilizing of it by means of sodium sulphite.
EFFECT: simplified accelerated process of anion-exchange resins regeneration due to lowered number of stages, possibility for using method for processing solutions of ore hydraulic chlorination.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REGENERATION OF ION-EXCHANGE RESINS SATURATED WITH PRECIOUS METALS | 1991 |
|
RU2040561C1 |
| PROCEDURE FOR SORPTION EXTRACTION OF VALUABLE METALS | 2009 |
|
RU2394109C1 |
| METHOD OF EXTRACTING STIBIUM AND ARSENIUM FROM SOLUTION OF GOLD-CONTAINING CONCENTRATE BIOLEACH SOLUTIONS | 2009 |
|
RU2410454C1 |
| METHOD FOR SEPARATION OF NOBLE METALS FROM PYROMETALLURGY WASTES | 1994 |
|
RU2092597C1 |
| METHOD OF EXTRACTING GOLD FROM COMPOUND CHLORIDE SOLUTIONS | 1992 |
|
RU2023732C1 |
| EXTRACTION OF GOLD, PALLADIUM AND PLATINUM FROM CHLORIDE SOLUTION | 2010 |
|
RU2441929C1 |
| METHOD OF PROCESSING ANTIMONY-BASED GOLD CONTAINING ALLOY | 2006 |
|
RU2377328C2 |
| METHOD OF PRODUCING AMMONIUM PERRHENATE | 2012 |
|
RU2485053C1 |
| METHOD FOR IODINE-IODIDE PROCESSING OF GOLD-CONTAINING MATERIAL | 2019 |
|
RU2702250C1 |
| METHOD OF GOLD EXTRACTION FROM SULPHIDE GOLD-BEARING ORES | 2008 |
|
RU2385959C1 |
