GOLD SATURATED ANION-EXCHANGE RESINS REGENERATION PROCESS

摘要

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