METHOD FOR HEAP ELECTROCHEMICAL LIXIVIATION OF ORES Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: according to method, created in recess on antifiltration base is system of perforated piping. Initially buffer layer is made of finely crushed rock material, then constructed above it is perforated piping system. Upon that, built up is layer of material to be lixiviated and electrodes are installed. Small pond is arranged atop. Initially delivered into perforated piping are special solutions, electrodes are fed with potential difference. Then, delivered into perforated piping on antifiltration base are technological solutions. In this way, performed is electrochemical dissolving of gold. Buffer layer is formed of rock materials possessing reduction properties. In result, produced in additional pipeline are technological solutions with reduced amount of free oxygen. EFFECT: higher efficiency. 1 dwg