Effectiveness of combining geotechnologies when mining gold

Aim. To simulate combination of gold mining technologies to increase the efficiency of its opening and optimize costs. The efficiency of metal extraction depends on a combination of the possibilities of extraction and enrichment technologies for metal-containing raw materials. The methodology of the research includes a comprehensive study of physico-chemical processes and the establishment of patterns of gold leaching, as well as the justification of the possibility of rationalization of gold mining production options. Methodology. Comprehensive study of the processes and patterns of gold leaching at the stages of field development; models for assessing the impact of mining on the environment; algorithms for gold extraction by hydrometallurgical and heap methods and in disintegrators; algorithm for selecting the parameters of gold leaching from tailings of enrichment and poor ores. Quantitative indicators of the practical extraction of gold by leaching are given. Results and their analysis. The author has substantiated the expediency of processing substandard metal-containing raw materials. The paper demonstrates the role of gold production by leaching metals from resistant sulfide ores. It is proved that maintaining the capacity of mining enterprises is associated with the involvement of technologically opened ores in the processing of tailings. The author defined the goals and objectives of improving the methods of combining technologies for the development of gold deposits. Conclusions. Taking into account the factors of combining geotechnologies of integrated field development under certain conditions ensures profit through the efficient use of resources.