LINE FOR PROCESSING GOLD-CONTAINING FLOTATION CONCENTRATES Russian patent published in 1996 - IPC

FIELD: hydrometallurgy of noble metals, namely lines for processing gold-containing flotation concentrates. SUBSTANCE: line, having arranged according to manufacturing process and mutually connected by transporting means module for preliminary cyanidation, module for gold sorption onto activated carbon, module for desorption of gold from saturated carbon, module for regeneration of carbon and module for electrolysis of gold-containing solutions, also includes module for gravitation-flotation recleaning of initial concentrate, mounted in beginning zone of the line, module for intensive cyanidation of recleaned concentrate, arranged after the module for gravitation-flotation recleaning, and module for secondary concentration of gold, placed before the module for electrolysis of gold-containing solution. The module for gravitation-flotation recleaning is connected with the module for preliminary cyanidation by means for transporting industrial products of recleaning and it is connected to closed contour with the module for intensive cyanidation by means for transporting the recleaned concentrate and cakes of its cyanidation. The module for intensive cyanidation is connected with the module for electrolysis by means for transporting gold-containing solutions. The module for secondary concentration of gold is connected with the module for preliminary cyanidation by means for transporting demetallized solution and with the module for desorption by means for transporting gold-containing solution and carbon. The module for desorption through the module for electrolysis is connected with the module for secondary concentration by means for transporting demetallized solution and through the module for regeneration of carbon is connected with the module for gold sorption by transporting pipeline. EFFECT: enhanced efficiency of line. 10 cl, 10 dwg