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A large number of precious metals such as molybdenum, gold, uranium and much more are obtained from sulfide ores. Currently, a large number of hydrometallurgical methods are used to extract precious metals, which in turn are outdated in this field. In this regard, it is necessary to develop new modern methods for extracting all valuable components from sulfide ores. One of these methods is the process of bio-leaching with the use of microorganisms. The use of this method in mining companies will help reduce the ri...

In the early 80-ies near the village of Shantobe, Akmola region, a heap leaching manufactory was built. Since 1985, the manufactory processes productive solutions, and the commercial product of the manufactory is a regenerate containing up to 40.0 g / l of uranium. This product is processed at the mining and smelting factory (SMCC) in the city of Stepnogorsk to produce U3O8 uranium oxide. The share of heap leaching accounts for 25.0% of uranium according to control No. 1. But, in connection with the difficulty of ...

New efficient ways of processing mineral raw materials are one of the determinants of scientific and technological progress. In recent years, there has been a tendency to reduce the metal content and complicate the mineral composition of processed ore raw materials, and increase requirements for environmental protection. All this leads to a rise in the cost of mining and extraction of useful components. The ever-growing demand for metals leads to the need to use poor ore, deposits lying at great depths, dumps of m...

The temperature makes considerable impact on gold-bearing minerals decomposition. So, by the Russian scientists on an example of May deposit concentrate it has been shown that the increase in temperature of a pulp to 34 - 36В°? intensifies oxidation of gold-bearing mineral - arsenopyrite: after the lapse of 48 hours oxidation degree arsenopyrite reached 95%. On the basis of studying kinetics biooxidation of sulphidic minerals by microorganisms association at various temperature modes in some research institutes of...