FIELD: metallurgical industry. SUBSTANCE: this relates to hydrometallurgical separation of gold and silver from hard materials and can be used in analytical chemistry. Method implies processing of hard wastes of pyrometallurgy containing noble metals by means of iron chloride solution with concentration of 50-300 g/l with subsequent sorption of gold and silver brought into solution by means of anion exchanger of polyamine type, followed by desorption of nobble metals from anion exchanger with the help of solution of urea and mineral acid. EFFECT: high efficiency.
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Authors
Dates
1997-10-10—Published
1994-02-08—Filed