METHOD FOR VACUUM DISINTEGRATION OF GOLD-BEARING CLAY ROCKS

摘要

FIELD: mining.;SUBSTANCE: invention relates to enrichment of minerals, particularly, to apparatus for extracting fine gold from clay gold-bearing rocks. Proposed method comprises pulse rate evacuation in vacuum chamber by vacuum pump, receiver and pipelines with high-speed valves. Pulse vacuumisation is performed for not more than 1 s, at that, pressure in working chamber is reduced to 0.4 kPa, with further reduction to 13 Pa at the operating pump for not more than 10 seconds.;EFFECT: method increases output of ultrafine particles of precious metals when extracted from gold-bearing clay rocks.;1 cl, 4 dwg