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Multistage Recycling of Aluminum Casting Slags: Metal Extraction and Salt Flux Regeneration

B. P. KulikovLaboratory of X-Ray Research and Analysis Methods, Siberian Federal University, 660041 Krasnoyarsk, RussiaNikolay DombrovskiySchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaА. А. KosovichSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaE. G. PartykoSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaYu. N. MansurovDepartment of Wagons and Wagon Economy, Tashkent State Transport University, Tashkent 100067, UzbekistanP. O. YuryevSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaN. A. StepanenkoSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaYuriy Viktorovich BaykovskiySchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaAlexander Vasilyevich DurnopyanovSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaRuslan BalanevSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, RussiaMaxim BaranovSchool of Non-Ferrous Metals, Siberian Federal University, 660041 Krasnoyarsk, Russia

Recyclingjournal2026en

ABI

Annotatsiya

The depletion of natural resources remains an acute global problem, highlighting the importance of developing sustainable technologies that enable the simultaneous extraction of metals and recycling of waste. This paper describes a study of a technology for recycling aluminum slag from foundries to produce secondary aluminum alloy and regenerated flux. Research and processing methods include X-ray phase and spectral analysis of slag composition, multi-stage grinding in a jaw crusher and planetary mill, screening for fraction separation, and selective dissolution of the oxide–salt phase in water or hydrochloric acid followed by filtration and evaporation; obtaining regenerated flux based on phase diagrams of chloride systems; and briquetting and remelting of the extracted aluminum. The technology ensures the extraction of up to 85% of the metallic aluminum from slag and the production of regenerated flux based on the NaCl–KCl–MgCl2 system with a low melting point.

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Mavzular

Bauxite Residue and Utilization Extraction and Separation Processes Aluminum Alloy Microstructure Properties

Identifikatorlar

DOI: 10.3390/recycling11030052

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