METHOD OF GOLD AND SILVER EXTRACTION FROM PRODUCTS OF BACTERIAL LEACHING OF IRON-SULFIDE CONCENTRATES

摘要

This invention relates to processing residues bayuerialnogo leach iron - sulfur arsenic containing noble Megalli concentrates. The circuit of the invention - reduction of reagent consumption and intensifying the process from a feedstock - bacterial leaching residues - prepared aqueous puppu with the ratio S: L of 1: 3, pH 10.5 - 12, and subjected to electrochemical treatment at a volumetric current density 0.3 - 1 5 a / l for 1 -. 3 hours from the obtained product are gold and silver extraction sorption cyanidation As a result, process time is shortened, and reduced consumption of sodium cyanide Table 4