Hydrometallurgical treatment of mining waste from Bor - Serbia in aim of copper recovery 2023 All rights reserved Proceedings International October Conference on Mining and Metallurgy (54 ; 2023 ; Borsko jezero) application/pdf 1917659 bytes https://unilib.phaidrabg.rs/o:4123 cobiss:134552073 Avramović, Ljiljana Stevanović, Zoran Trifunović, Vanja Marković, Radmila Božić, Dragana Urošević, Daniela Dimitrijević, Silvana Keywords: flotation tailings, beaker leaching, high pressure leaching, copper recovery. info:eu-repo/semantics/conferenceProceedings Abstract: Flotation tailings deposited on the Old Flotation Tailing Dump in Bor contains 0.2-0.4% Cu and represents a significant resource for recovery of copper and other useful components. The results of experimental laboratory tests of the copper recovery process from the flotation tailings using the beaker leaching (BL) and high pressure leaching (HPL) are given in this paper. By the use of beaker leaching, the degree of copper recovery of 70% and iron of 12% at temperature of 60°C, time of 24 hours and concentration of sulfuric acid of 15 g/l was achieved. A high degree of copper recovery of 99% was achieved by the high pressure leaching using water as an leaching reagent at a temperature of 180°C and pressure of 1.5 MPa. eng