An algorithm for extracting metals from natural leaching solutions of lost ores

The article discusses a solution to the problem of extracting metals from natural leaching solutions of the offgrade ores and their mill tailings to obtain ecological and economic efficiency, the relevance of which is steadily increasing. The methodology of studying the samples includes the methods of polarographic analysis, spectrometry, chromatography, titration and complexometry, etc. Sulfate-chloride waters were studied using industrial electrodialyzers with the solution circulation through brine chambers and without it with metal extraction by sorbents. Details are provided of the scheme of the electromembrane technology of combined metal extraction with the process regulation. The concept of natural leaching of the ores lost in the worked-out space by mine effluents has been clarified. An algorithm is proposed to purify the ore effluents with the production of a group of metals, including the rare earth metals, which combines the functions of metal deposition and purification of the mine effluents. The aggregate model combines the technological, environmental and economic aspects of mining within the framework of the natural and man-made systems. A conclusion is made that it is advisable to implement the recommendations of the study to solve the environmental problem and strengthen the raw material base by reducing the loss of valuable components. Implementation of the recommendations provided in the article contributes to the solution of the main tasks of mining, i.e. increasing a complete utilization of the subsoil resources and reducing the burden on the environment while ensuring the safety of operations.