METHOD FOR HEAP LEACHING OF GOLD FROM REFRACTORY ORES AND TECHNOGENIC MINERAL RAW MATERIAL

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to method of heap leaching of gold from starting material in form of gold-containing refractory ore and man-made mineral stock. Method involves agglomeration of initial raw material by adding to it of binding material, forming a pile, leaching of gold by supplying the solution of leaching reagent, recycling of working solutions, collection of productive solutions and extraction of gold. Primary leaching of free gold and gold in intergrowths is performed with solution of reagent-complexing agent, followed by maintenance and supplied to stack sulfuric-peroxide and carbonate-peroxide solutions, past photoelectrochemical treatment, followed by further exposure and additional leaching of fine and gold, opened during oxidation of magnetite, sulphide-sulphosalt minerals and transformation of structure of quartz-chalcedony.;EFFECT: higher efficiency of leaching of gold from starting material.;2 cl, 1 ex