It is studied influences of bacterial solution on the соpper-molybdenum sulfide ore. The studies on crushing and on changes in density of copper-molybdenum sulfide ore before treatment and after treatment of the bacterial solution.
The issue of the Erdenetiin ovoo deposit development depth increase is considered based on ap- plication of heap leaching for oxidized, mixed,cutoff grade ores and pressure leaching for copper sulfide concentrate The information about reserves difficulty processed ores of the deposit «Erdenetiin Ovoo». Given the parameters of predictive recovery of copper from copper sulfide ore heaps № 6 and № 2 of the deposit «Erdenetiin Ovoo».
It is studied bioleaching of copper sulfide ore of Erdenetiin ovoo deposit. It is studied effect of ore size and pH of bacterial solution, the bacteria count of the bacte rial solution on the extraction of copper of bacterial leaching.