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Installation of process equipment for the production of copper concentrate started at Udokan

Installation of process equipment for the production of copper concentrate started at Udokan
Udokan Copper LLC has started the installation of equipment at the construction site of the thickening and decantation area.

In the thickening and decantation area, the bulk concentrate, which has undergone atmospheric leaching, will undergo the thickening procedure in special tanks. Thickening is a process of separating solid and liquid fractions based on the natural settling of solid particles under the influence of gravity and reagents. In the process of thickening, the solid fraction settles and goes through the decantation stage, and the liquid fraction, in the form of rich solutions, is sent for further processing to the hydrometallurgical plant.

After the countercurrent decantation, the solid sediment is sent to sulphide flotation (beneficiation method). The final sulphide concentrate is thickened and filtered. The result is a commercial sulphide copper concentrate with a copper content of about 45%.

Alexey Yaschuk, Deputy General Director - Operation Officer of Udokan Copper LLC, noted: “Processing of Udokan ore with its complex composition will be carried out at the plant using the unique process flowsheet that combines concentration and hydrometallurgical processing”. According to him, as of today such technologies are not used neither in Russia, nor in the CIS countries.

25 March 2021