Investigation of gold content in the bio-oxidation process
Tulkin NurmurodovNavoi State University of Mining and Technologies, Navoi, 210100, UzbekistanNodira SaidovaNavoi State University of Mining and Technologies, Navoi, 210100, UzbekistanOybek AshurovJSC Navoi Mining and Metallurgical Company, Navoi, 210100, UzbekistanGulrukh RakhimovaNavoi State University of Mining and Technologies, Navoi, 210100, UzbekistanO. U. FuzaylovNavoi State University of Mining and Technologies, Navoi, 210100, UzbekistanJakhongir NarzullaevNavoi State University of Mining and Technologies, Navoi, 210100, Uzbekistan
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In this study, the process of bio-oxidation of flotation concentrate from the flotation of gold-sulfide ores and sorption cyanidation of the bio-oxidation product were analyzed, and the content of dispersed gold in pyrite, arsenopyrite, and carbonaceous matter was determined. The article also presents the results of laboratory studies on the behavior of gold ions at different stages of leaching, analysis of the gold content in solid samples after acid and alkaline treatment, as well as a semi-quantitative elemental composition. The formation of jarosite minerals was studied at high concentrations of chloride ions and on the surface of pyrite and negatively affects the oxidation of pyrite/arsenopyrite.
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