INSTALLATION FOR LEACHING OF GOLD-CONTAINING GRANULAR MATERIALS Russian patent published in 1996 - IPC

FIELD: hydrometallurgy of noble metals; can be used, in particular, in device for extraction of gold by leaching from concentrates of gravity concentration of ores. SUBSTANCE: the device, having a housing with solution inlet and outlet branch-pipes, material loading and discharge branch-pipes, is additionally furnished with a solution flow dissector located in the bottom part in the form of a bed of inert granular material with a density of 7 to 12 g/cu.cm and a sand gate, formed by the solution inlet and outlet branch-pipes installed inside the housing along its axis. The solution inlet branch-pipe is installed in a spaced relation to its top below the bed level, and the solution outlet branch-pipe is installed inside the solution inlet branch-pipe above the bed level. EFFECT: enhanced efficiency. 2 dwg