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Ore-dressing process

Gold ore-dressing technologies (VNIItsvetmet)

The major developments for gold ore processing are the various technological schemes.

Process procedure for design are developed.




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Development of technologies for processing man-made structures with the extraction of precious metals (VNIItsvetmet)

Combined technology of extraction of gold and non-ferrous metals from man-made formations which are composed as spoiled tails of ore-processing and gold extraction plants of Kazakhstan was developed. This technology uses gravity, flotation, hydrometallurgical methods of ore processing, ultra-fine reduction of man-made materials, the original methods of conditioning the pulp, new reagent regimes.

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Heap leaching of gold and copper from chats and anthropogenic wastes (Kazmekhanobr)

Technology for processing of oxidized gold-copper ore and oxidized copper ore by heap leaching to produce in the form of commercial products of gold and copper is developed.



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Technology sorption of gold by ion-exchange resins (Kazmekhanobr)

Technology sorption of gold from effluents and solutions by the use of effective sorption apparatus and electrolysers designed by Kazmekhanobr is developed.



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Technology of complex processing of vanadium black-shale ores of Big Karatau (RSE «NC CPMRM RK»)

Technology of complex processing of vanadium black-shale ores of Big Karatau by the use of sulfuric autoclave leaching in the presence of elemental sulfur is developed. The high degree of extraction of vanadium - 85%, molybdenum - 80%, uranium - 99%, ΣREE - 75% is achieved. Accompanying products - carbon black, aluminum sulfate, silica and metallurgical flux is obtained.

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