o:5954 Leaching of flotation tailings with a solution of sulfuric acid and ionic liquid en Abstract: This paper presents the results of leaching flotation tailings containing 0.13% of copper and 4.22 % of iron. The experiments were carried out in a sulfuric acid solution (H2SO4) and an ionic liquid solution 1- butyl-3-methyl-imidazolium hydrogen sulfate ([bmim]HSO4). Concentrations of the reagents of 0.01 mol/dm3 and 0.05 mol/dm3 were tested. When leaching with sulfuric acid, the leaching degree of copper was 71.05% at the lower concentration of solution and 76.59% at the higher concentration of solution. When flotation tailings was leached in an ionic liquid solution with the same concentrations, the leaching degree of copper was 72.57% (for 0.01 mol/dm3) and 77.10% (for 0.05 mol/dm3), respectively. The results showed that the leaching rate of copper increased in the first 5-10 minutes of the reaction due to the presence of oxide minerals and then slightly increased with time. The dissolution of iron was <3% under the tested conditions. These results indicate that the ionic liquid 1-butyl-3-methyl-imidazolium hydrogen sulfate ([bmim]HSO4) can be used as agent for the leaching process of flotation tailings. Keywords: leaching, flotation tailings, sulfuric acid, ionic liquids. 91552100 138029833 1552100 978-86-6305-140-9 2024-11-02T10:24:37.764Z 44 no 46 Dragana Marilović Tehnički fakultet u Boru, Univerzitet u Beogradu 55478281 0000-0001-8301-750X 2023 46 Grozdanka Bogdanović Tehnički fakultet u Boru, Univerzitet u Beogradu 13713767 0000-0002-1013-4075 2023 46 Sanja Petrović Institut za rudarstvo i metalurgiju Bor 60041481 0000-0001-5197-1614 2023 application/pdf 2415425 https://unilib.phaidrabg.rs/o:5954 no yes 1 70 622 92000004 71A03 Proceedings International October Conference on Mining and Metallurgy (54 ; 2023 ; Borsko jezero) 456 459 2023