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Information × Registration Number 0299U001894, 0196U010495 , R & D reports Title The developing of an ecologically pure technology of the Ukrainian deposits sulphide and arsenicum-bearing gold ores reprocessing popup.stage_title Head Sidyakina G.G., Registration Date 05-10-1999 Organization The Ukrainian State Institute of Mineral Resourses popup.description2 It is offered the biooxidation of sulphide minerales and the break-down of gold included there, that make it possible to increase the gold recovery at the further cyanidation process by (20-70)%. It has been carried out pilot tests which confirmed the high effectiveness of biooxidation process of arsenopyrite gold- bearing concentrates. A technology of the purification of technological solutions from arsenicum has been developed. It has been shown the feasibility of the utilization of biological and chemical reagents as gold dissolvents (as the substitutes of cyanides). The project has been made and large- scale mobil technological plant of gold placer for the reprocessing of gross samples that have been tested under field conditions and exhibited tne high effectiveness has been created. The rationality of the electric and magnetic separation methods while Ukrainian gold ores are dressed has been established. It has been carried out the job of a quest of reagents which are able to flocculate sele ctively and recovery the fine parts of free gold. The gold recovery depending on the ore composition and reagent-collector type may be increased by (30-35)%. Product Description popup.authors popup.nrat_date 2020-04-03 Close