LINE OF PROCESSING OF ARGILLACEOUS GOLD-CONTAINING ORES Russian patent published in 1999 - IPC

FIELD: hydrometallurgy of noble and other metals; applicable in gold recovery from argillaceous ores by cyanidation. SUBSTANCE: line includes interconnected in direction of process flow by transportation means: grinding and classification module, thickening module, module of sorption cyanidation, module of gold desorption from saturated sorbent, sorbent regeneration module, module of electrolysis of gold-containing solutions, tailing dump and module of heap leaching connected with tailing dump by transportation means of its clarified liquid phase, and with grinding and classification module by transportation means of producing solution. Grinding and classification module is made in form of wet self-grinder and screen connected in open cycle by means of transportation of grinder outflow; classifier connected with screen by means of transportation of classifier minus product and hydrocyclones connected with classifier by means of transportation of its outflow. Grinding and classification module is connected with module of heap leaching by means of transportation of screen plus product, sands of classifier and hydrocyclones, and with thickening module, by means of transportation of outflow from hydrocyclones. Thickening module is connected with sorption cyanidation module by means of transportation of thickened material, and with grinding and classification module, and/or module of heap leaching by means of transportation of outflow. EFFECT: higher efficiency of processing argillaceous ores. 3 cl, 1 dwg