GOLD- AND SILVER-CONTAINING FLOATATION CONCENTRATES PRODUCTION LINE Russian patent published in 2004 - IPC

FIELD: metallurgy of noble metals; hydro-metallurgy of gold and silver. SUBSTANCE: gold- and silver-containing concentrates production line includes preliminary cyanidation module, module of sorption of gold on activated carbon, module of de-sorption of gold from saturated carbon, carbon regeneration module, gold-containing solution electrolysis module and secondary concentration module. Line is additionally provided with tailing pond and silver gas reduction module located at inlet of reusable solution from tailing pond . Silver gas reduction module includes receiver and settler with systems of dispersers which are connected with gas source by means of pipe line and is connected with preliminary cyanidation module. EFFECT: increased extraction of gold and silver from floatation concentrates to 95.5 and 65% respectively. 6 Dwg