METHOD OF EXTRACTION OF DISPERSE GOLD FROM REFRACTORY ORES OF TECHNOGENIC MINERAL RAW MATERIALS (VERSIONS) Russian patent published in 2015 - IPC C22B11/08 C22B7/00 C22B3/04 

FIELD: mining.

SUBSTANCE: method includes agglomeration of gold-bearing mineral mass of source raw materials by adding to it of binding material, stacking, gold leaching by supply into the stack of solution of gold leaching reagent, collecting of working solutions with subsequent extraction of gold from it. In the first version of the method during agglomeration the gold-bearing mineral mass is separated into two weighed portions, and the first weighed portion is treated with carbonate peroxide solution, and the second one - with active cyanide solution. After agglomeration of the weighed portion it is mix and stacked, held and leached by supply into the stack of oxygenised water or weak alkaline solution of sodium or potassium cyanide in infiltration, filtrational or pulsation-and-static mode. In the second version of the method the gold-bearing mass is not separated into weighed portions.

EFFECT: improvement of efficiency of extraction of gold from ores and technogenic mineral formations.

2 cl, 1 ex