METHOD OF ISOLATION OF METAL CATION FROM SOLUTION

摘要

chemical technology. SUBSTANCE: invention proposes method of isolation of metal cations from solution that can be used for producing gold and other precious metals from enrichment tails or from ore pulp (pH values are from 1.0 to 7.0). Method involves interaction of solution containing metal cations with cationic carboxyl-containing sorbent, for example, VION KN-1 if pH value of solution is 3.5-7.0. At pH value below 3.5 solution is diluted preliminary with water or sodium hydroxide to pH 3.5-7.0. Solution is passed through sorbent or placed in solution flowing as turbulent stream being sorbent is placed in solution preferably. Method ensures to increase the yield of entrapped metal at least by 4-5-fold per mass unit of sorbent. EFFECT: increased yield of metal. 3 cl, 3 ex