| 摘要 |
FIELD: mining industry. ^ SUBSTANCE: method includes removal of melted soil from the area meant for construction of stack, placement of anti-filtering base, mounting of equipment for draining productive solution and placement of leaching metals on prepared stack base. Stack is formed of frozen clotted or cracked by freeze-cracking cracks rocks in open tank made of non-combustible materials with sealing gates on its ends for easier creation of stack and its removal in case of repeated use of the tank. Combustible fluid is fed into the tank until it is fully filled, fluid is ignited and after burning of said fluid a reagents solution is fed into melted rocks stack, into which dissoluble salts of metals with low eutectic temperature are fed, which salts do not react with working reagents and possible intermediate products of chemical reactions, until a concentration close to saturation is reached. By this melted leaching rocks are protected from repeated freezing and as a result means for process of metals leaching is provided. ^ EFFECT: possible metals leaching from frozen clotted or cracked by freeze-cracking cracks rocks at any season of year, higher effectiveness and simplified process. |
