METHOD FOR MINING BY UNDERGROUND LEACHING Russian patent published in 2022 - IPC E21B43/28 

FIELD: mining industry.

SUBSTANCE: proposed invention relates to the field of physico-chemical geotechnology, namely to the extraction of minerals: uranium, rhenium by borehole underground leaching in sandstone deposits. The method for extraction of minerals by borehole underground leaching includes the construction of a network of technological wells, the injection of leaching solutions and pumping of productive solutions, the processing of solutions by sorption/desorption and the production of finished products. Pumping of productive solutions to related components is carried out differentially from wells constructed in the subzones of uranium mineralization of epigenetic zonation. The processing of productive solutions is carried out separately with advanced rhenium sorption. During the construction of injection and pumping wells, zoning of operational blocks is carried out. Pumping selective wells are tied into a separate collector.

EFFECT: increase in the efficiency of the process of processing productive solutions and extraction of the main and related metals.

2 cl, 2 dwg