AP19676951 – Development of a resource-saving, combined technology for complex processing of multicomponent dust from non-ferrous metallurgy to produce marketable products

Purpose: Investigation of the physico-chemical foundations of hydrometallurgical processes. Technological experiments on extraction of lead, copper and rhenium. The following tasks have been solved to achieve this goal: 1. The selection and scientific justification of a hydrometallurgical scheme for the extraction of lead, copper, and rhenium was carried out based on the construction of a general concept for dust processing technology 2. Laboratory experiments on cinder leaching were conducted, the characteristics of the products obtained were studied, and optimal process parameters were determined depending on acid consumption, temperature, and duration of the process 3. Laboratory experiments have been conducted to extract copper and rhenium from an acidic solution into commercial products: cementation isolation of copper and extraction of rhenium from solution, establishment of optimal process parameters. 4. The results were evaluated. A general hydrometallurgical scheme for the extraction of copper and rhenium from an acid solution has been constructed.

Relevance: Arsenic-containing lead dusts formed during copper smelting are complex multicomponent man-made raw materials, the disposal of which is difficult due to the high content of toxic and difficult-to-recover components. The development of an effective hydrometallurgical technology with preliminary reduction firing and subsequent extraction of valuable metals (Pb, Cu, Re) ensures not only resource conservation, but also a reduction in environmental stress. The relevance of the project is due to the need for comprehensive waste recycling and maximum extraction of valuable components with minimal environmental impact.

Scientific supervisor:  Candidate of technical sciences, Professor, Nurlan Dosmukhamedov

Results obtained:  The study investigated the composition and occurrence forms of components in fine dust from electrostatic precipitators of copper smelting production, including the distribution of metals and impurities. Thermodynamic calculations and experimental studies of reducing roasting with natural gas were carried out, enabling the determination of optimal conditions for arsenic removal and ferrite decomposition. A hydrometallurgical processing scheme was developed, including roasting, leaching, and subsequent recovery of copper and rhenium from solutions. Optimal parameters for each stage of the process were established experimentally, ensuring high extraction efficiencies of target metals. Additional studies were conducted on copper cementation and rhenium extraction, resulting in the production of high-quality commercial products. As a result, an integrated technology for dust processing was developed, demonstrating high metal recovery rates and confirmed technical and economic efficiency.

List of publications with links to them

1. Dosmukhamedov N., Zholdasbay E., Argyn A. Extraction of Pb, Cu, Zn and As from Fine Dust of Copper Smelting Industry via Leaching with Sulfuric Acid // Sustainability. Switzerland. 2023. Vol. 15, Issue 22, No. 15881 (WOS, Q2, Scopus, percentile – 87%). https://doi.org/10.3390/su152215881.
2. Dosmukhamedov N., Zoldasbay E., Argyn A., Kurmanseitov M., Icheva Yu., Klyshbekova Zh. To the choice of technology for processing lead dust of copper production: Analysis of methods of dust recycling // EJH. 2023. No. 4 (RSCI). https://world-science.ru/en/issue/view?id=563.
3. Досмухамедов Н.К., Жолдасбай Е.Е., Курмансейтов М.Б., Аргын А.А. Особенности распределения Pb, Cu, Zn и As между продуктами выщелачивания тонкой пыли медеплавильного производства серной кислотой // МЖФиПИ. 2023. №10 (RSCI). https://doi.org/10.17513/mjpfi.13581.
4. Dosmukhamedov N.K., Zholdasbay E.E., Argyn A.A., Kurmanseitov M.B., Icheva Yu.B. On the issue of handling non-ferrous metallurgy dust // VIII International Scientific and Practical Conference “New problems of science and ways of their solution”, Paris, France, 2023. https://doi.org/10.5281/zenodo.10161214.
5. Zoldasbay E.E., Argyn A.A., Dosmukhamedov N.K. Analysis of the thermal regime of converting of copper-lead matte with high-sulfur copper concentrate // Kompleksnoe Ispolzovanie Mineralnogo Syra. 2024; 329(2):82–91 (WOS, КОКНВО). https://doi.org/10.31643/2024/6445.19.
6. Dosmukhamedov N., Takishov A., Zholdasbay E., Argyn A. Extraction of arsenic from fine dust of copper smelters by reduction roasting with natural gas // Sustainable Environment Research. 2024. Vol. 34, Article 20 (WOS, Q2, Scopus, Q1, percentile – 88%). https://doi.org/10.1186/s42834-024-00228-8.
7. Dosmukhamedov N., Zholdasbay E., Argyn A., Aitenov K. Behavior of As, Pb, Cu, and Zn under conditions of reduction roasting of fine dust generated by a copper smelter with natural gas // Metallurgist. 2024. Vol. 3. P. 1–9 (WOS, Q4, Scopus, Q3, percentile – 42%). https://doi.org/10.1007/s11015-024-01764-9.
8. Досмухамедов Н.К., Жолдасбай Е.Е., Ичева Ю.Б. Извлечение Cu, Zn, Pb из огарка от обжига тонкой конвертерной пыли медного производства выщелачиванием серной кислотой // Горный журнал Казахстана. 2024. №5. С. 44–50 (КОКНВО). https://minmag.kz/ru/2024/05/31/%e2%84%965-2024/.
9. Dosmukhamedov N., Kaplan V., Zholdasbay E. Characterization of dust from copper-lead production // VIII International Scientific and Practical Conference “Theoretical and practical perspectives of modern science”, Stockholm, Sweden, 2024. https://doi.org/10.5281/zenodo.10950374.
10. Dosmukhamedov N., Kaplan V., Zholdasbay E. Analysis of converter dusts of non-ferrous metallurgy // VIII International Scientific and Practical Conference “Questions. hypotheses. answers: science XXI century”, Toronto, Canada, 2024. https://doi.org/10.5281/zenodo.11222240.
11. Dosmukhamedov N., Argyn A., Zholdasbay E. Investigation of the distribution of non-ferrous metals during the leaching of a stub // XIII International Scientific and Practical Conference “Modern science: theoretical and practical view”, Madrid, Spain, 2024. https://doi.org/10.5281/zenodo.13124742.
12. Dosmukhamedov N.K., Zholdasbay E.E., Argyn A.A., Icheva Yu.B., Klyshbekova Zh.E. Technology for extraction of Pb, Cu, Zn from a feed based on lead cake from leached dust generated by reduction-oxidation blowing of melt // Kompleksnoe Ispolzovanie Mineralnogo Syra. 2025; 334(3):78–90 (WOS, КОКНВО). https://doi.org/10.31643/2025/6445.30.
13. Dosmukhamedov N.K., Zholdasbay E.E., Argyn A.A., Icheva Yu.B., Kurmanseitov M.B. Technology for processing balanced feed charge based on copper-, lead-containing products // Kompleksnoe Ispolzovanie Mineralnogo Syra. 2026; 336(1):96–104 (WOS, КОКНВО). https://doi.org/10.31643/2026/6445.09.
14. Dosmukhamedov N.K., Zholdasbay E.E., Argyn A.A., Icheva Yu.B., Kurmanseitov M.B. Enlarged tests on the processing of copper-lead mattes obtained after reductive smelting of balanced feed charge // Kompleksnoe Ispolzovanie Mineralnogo Syra. 2026; 337(2):75–84 (WOS, КОКНВО). https://doi.org/10.31643/2026/6445.19.
15. Dosmukhamedov N., Zholdasbay E., Koishina G., Icheva Yu., Myrzabekova K. Extraction of copper and rhenium from the sulfuric-acid leaching solutions of cinder // Metallurgist. 2025. Vol. 9. P. 2–12 (WOS, Q4, Scopus, Q3, percentile – 42%). https://doi.org/10.1007/s11015-025-02012-4.
16. Dosmukhamedov N., Shambulayev B., Dityatovskiy L., Zholdasbay Ye., Argyn A. Determination of quantitative ratios (mechanical and dissolved) of copper, gold and silver losses in Vanyukov furnace slags under the conditions of the Balkhash copper smelter in Kazakhstan // Recycling. 2025. Vol. 10, 181 (WOS, Q4, Scopus, Q3, percentile – 86%). https://doi.org/10.3390/recycling10050181.
17. Dosmukhamedov N., Shambulayev B., Dityatovskiy L., Zholdasbay Ye. Comprehensive study of the distribution of metals during the smelting of copper-containing raw materials in the Vanyukov furnace at the Balkhash copper smelter // Advances in Science and Technology Research Journal. 2025. Vol. 19(10). P. 347–358 (WOS, Q4, Scopus, Q3, percentile – 46%). https://doi.org/10.12913/22998624/208173.
18. Досмухамедов Н.К., Жолдасбай Е.Е., Ичева Ю.Б., Курмансейтов М.Б. Способ удаления мышьяка из тонкой пыли цветной металлургии. Заявка на патент №2025-76555 от 17.09.2025 г.