METHOD OF HEAP LEACHING OF METALS FROM SANDY-ARGILLACEOUS ROCKS UNDER SUBZERO AMBIENT TEMPERATURES

摘要

FIELD: mining. SUBSTANCE: method includes formation of impervious base and heaps of sandy-argillaceous rocks. Heap of rocks is moistened up to full moisture capacity before cold season of year. During cold season heap is fully frozen, snow is removed from heap surface to provide for conditions of formation of gaping frost fissures. Upon completion of formation of frost fissures system, leaching is started. EFFECT: increased filtration coefficient.