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Processing of arsenic-pyritous gold ores of the Republic of Kazakhstan's deposits


Short description:


Pyro-hydrometallurgical technology of processing of resistant arsenic-pyritous ores is developed, it provides throughout recovery of gold in commercial product at 91-93%, allows utilization of arsenic by 98% as an insoluble sulfide compound. By this technology, precious metals can be obtained as Dore alloy, or in the form of ingot of gold and ingot of silver.


Electromembrane technology for extraction of precious metals on the liquid electrode with the regeneration of cyanide solutions is developed, it provides throughout recovery of gold in metal at 95-­98%.


Use of electromembrane method for extracting gold from the heap leach solutions will enhance the recovery of gold at the existing facilities up to 90% after replacing the method of concentrating on the resin and coal to the way of electroextraction on the electrolytic electrode.


Level of readiness:


Technology is ready to testing.


Availability of patents:


Technology is protected by patents.





JSC «GMK Kazahaltyn».





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