LEACHING METHOD OF NONFERROUS METALS

摘要

FIELD: metallurgy. ^ SUBSTANCE: invention relates to hydrometallurgy, particularly to extraction method of nickel from ores. Method includes development of ore stratum by means of washing out with receiving of pulp and extraction of nickel from solid phase of pulp. Then it is implemented underground leaching of ore body by solution of sulfur acid and it is implemented collection and processing of received productive solution. Additionally washing out of ore stratum is implemented up to the level exceeding groundwater line not less than for 1 metre, with usage of liquid phase of washing out pulp. ^ EFFECT: nickel extraction ratio increasing. ^ 1 ex