DEVELOPMENT METHOD OF FLOODED TECHNOGENIC SITES IN PLACE OF THEIR FINAL RESTING Russian patent published in 2011 - IPC E21B43/28 

FIELD: mining.

SUBSTANCE: method involves arrangement of increased permeability of mining ore mass (MOM), action of reagents on MOM obtaining design content of useful components (UC) in the form of concentrated solutions. In order to obtain design contents of UC, MOM is changed over to permeable state by its mixing with water component of flooded technogenic sites till suspension of design density is formed. After the suspension achieves the design density, MOM UC is changed over to ionic condition by mixing the suspension with optimum solvent till design concentration of UC (mg/l) is formed in place of MOM resting. Then, suspension is settled in the same volume of technogenic site till the solution is clarified. At formation of suspension the silts can be used as MOM.

EFFECT: increasing development efficiency of flooded technogenic sites; reducing the development time period and obtaining complex or selective productive solutions.

2 cl, 3 dwg