Abstract
There are many sources to increase value in an integrated mining–metallurgy context. The optimal strategy for concentration of minerals from the ore is one of these sources. The elements of mining-metallurgy operations from resources, infrastructure, mining site, processing, and metallurgy are mutually dependent, and reinforce and interact positively with each other to generate a combined value greater than the sum of their individual contributions. Bioleaching technology is an alternative processing technology for treatment of low-grade sulphide ore, and its application contributes to the achievement of better economic results than the conventional pyrometallurgical technology. This work presents the application of bioleaching technology in laboratory conditions for metal extraction from the polymetallic deposit Tenka in East Serbia, belonging to the company Serbia Zijin Bor Copper Doo (formerly the Mining Smelter Basin Bor Group). Bioleaching of sulphide polymetallic raw material is performed by chemolithoautotrophic microorganisms. Applying the bioleaching technology, the achieved recoveries of metals from the polymetallic ore are as follows: Cu 90%, Au 90%, Ag 80%, Zn 72% and Pb 90%. The calculated values for Net Present Value (NPV) and Internal Rate of Return (IRR) are $ 21.927 million and 12.55%, respectively.
Highlights
IntroductionThe law regulates that mining companies must operate in a way that is in the best interest of shareholders
Strategic planning for mineral resources acknowledges the importance of the mineral raw materials that contribute to progress and development, ensure a high living standard and create a competitive national and regional economy and new job positions.In economically developed countries, the law regulates that mining companies must operate in a way that is in the best interest of shareholders
This work presents the application of bioleaching technology in laboratory conditions for metal extraction from the polymetallic deposit Tenka in East Serbia, belonging to the company Serbia
Summary
The law regulates that mining companies must operate in a way that is in the best interest of shareholders. This implies that the management of a company is obliged to design and manage all mining and processing operations in a way as to ensure the maximum profit to the shareholders during the course of these operations, taking into account the time effect of money value. Despite the importance of economic issues the environmental concerns cannot be neglected. Environmental issues may include land use, management and rehabilitation, solid waste, water use, acid mine drainage, product toxicity, etc. A integrated mining complex consists of multiple components such as mines, crushers, stockpiles, leach pads, processing mills, waste dumps, metallurgical plants, means of transportation and customers
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