The Development of Innovated Complex Process for Treatment of Old Flotation Tailings of Copper-Zinc Sulfide Ore
Valiyev K. Bugubaeva A. Nechaeva A. Artykova A. Melamud V. Stom D. Boduen A. Bulaev A.
April 2024Multidisciplinary Digital Publishing Institute (MDPI)
Molecules
2024#29Issue 7
The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. It was shown that water leaching provided selective extraction of Cu and Zn and comparatively low iron ion extraction. At the same time, acid leaching provided the obtainment of pregnant solutions with high ferric ion concentration, which can be used for oxidative leaching of substandard copper concentrates. Water and acid leaching also provided increased Au recovery by cyanidation. The results suggest that acid leaching can be an effective approach for processing old flotation tailings, which allows the extraction of base metals from these wastes and treating flotation tailings for subsequent cyanidation. Effective flotation treatment methods should also provide environmental load reduction, which is caused by the long-term storage of metal-bearing wastes.
acid leaching , copper , gold , metallurgical wastes , old flotation tailings , sulfide ores , zinc
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Research Institute of Applied Biotechnology, Akhmet Baitursynuly Kostanay Regional University, 47A Baitursynov Str., Kostanay, 110000, Kazakhstan
Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 7/2 60-letiya Oktyabrya Ave., Moscow, 117312, Russian Federation
Baikal Museum SB RAS, 1 Akademicheskaya Str., Listvyanka, 664520, Russian Federation
Faculty of Biology and Soil Studies, Irkutsk State University, 1 Karla Marksa Str., Irkutsk, 664003, Russian Federation
RIVS Group of Companies, 11A Zheleznovodskaya Str., Saint Petersburg, 199155, Russian Federation
Research Institute of Applied Biotechnology
Winogradsky Institute of Microbiology
Baikal Museum SB RAS
Faculty of Biology and Soil Studies
RIVS Group of Companies
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