СПОСОБ КУЧНОГО ЦИАНИДНОГО ВЫЩЕЛАЧИВАНИЯ ЗОЛОТА

摘要

FIELD: hydrometallurgy of noble metals; leaching of gold from stacks. ^ SUBSTANCE: sodium cyanide solution is introduced at the moment when size of ore is lesser than 20 mm by sprinkling the ore escaping from hole of last crusher and sprinkling the minus material of screening of previous stages of crushing which is conditioned in size. Degree of extraction of gold from freshly crushed quartz-feldspar ore making use of ore "ripening" effect crushed to class of 10 mm and nodulized with sodium cyanide of piston-type sprinkling and oxygenation of circulating solutions is equal to 74% during 25 days. ^ EFFECT: enhanced efficiency of extraction of gold due to increased rate of dissolving. ^ 6 tbl, 6 ex