DEVICE FOR INCREASING EFFICIENCY OF VACUUM DISINTEGRATION OF GOLD-BEARING CLAY ROCKS Russian patent published in 2020 - IPC C22B11/12 C22B7/00 B03B7/00 

FIELD: mining.

SUBSTANCE: invention relates to enrichment of minerals, particularly, to apparatus for extracting fine gold from clay gold-bearing rocks. Apparatus for vacuum disintegration gold argillaceous rocks comprises a working chamber and a receiver, which is the volume ratio of <1:200, with the vacuum pump capacity ≥0.5 m³/s, connected to the receiver, fast acting pneumatic valves and pumping lapping atmosphere. Working chamber comprises tray for clay rock, which is equipped with heater with adjustable power of up to 200 W. Heater is configured to heat the rock to temperature of 10 to 30 °C and its location directly inside the clay rock. Tray is equipped with three temperature sensors configured to be installed at various depths of the rock thickness.

EFFECT: device makes it possible to intensify, and also to increase efficiency of gold-bearing clay rocks disintegration in order to increase yield of ultrafine particles of precious metals at their extraction from gold-bearing clay rocks.

1 cl, 1 dwg