Abstract
This research was conducted as part of the business contract implementation with JV “Akbastau”, No. 281/ Akb-16 of 23 December, 2016 and as part of the research-development work “Development of technology for mining and extraction of gold from poor ore veins”, performed within the framework of the program “Mo-dernization of technologies and production in the mining and mining-processing industries of the republic of Kazakhstan”, No. 266 of 28 March, 2018. The authors express their gratitude to Doctor of Technical Sciences, Professor H.A. Yusupov, Professor G.G. Kurapov and to Chief Research Scientist S.A. Yusupov for assistance and valuable advice in conducting this research.
Highlights
The poor deposits of hydrogen genesis, occurring in permeable sand-clay deposits of the depressed zones in the earth’s crust are mainly the raw material base for enterprises mining uranium by underground leaching (Sukhodolov, 2010), and the poor and off-balance ores are the raw material base for mining gold by heap leaching (Karaganov & Uzhkenova, 2002)
The solution activation leads to an increase in the valuable component content from 18 to 26% in the pregnant solution and its activity is maintained for a long time
The results of measuring the conventional metal content in the solutions after leaching revealed that the acid activity after cavitation treatment has increased by 14%
Summary
The poor deposits of hydrogen genesis, occurring in permeable sand-clay deposits of the depressed zones in the earth’s crust are mainly the raw material base for enterprises mining uranium by underground leaching (Sukhodolov, 2010), and the poor and off-balance ores are the raw material base for mining gold by heap leaching (Karaganov & Uzhkenova, 2002). Until recently, these deposits, containing reserves of uranium and gold, have not been involved in industrial development by traditional mining methods for technical and economic reasons. Despite all the advantages, when using a borehole in-situ leaching of
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