2025, Extractive Metallurgy and Process Innovations, str. 335-340
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Selective recovery of copper from hydrometallurgical processing of e-waste
(naslov ne postoji na srpskom)
Projekat: VEGA project of the Ministry of Education, Science and Technology of the Slovak Republic 1/0678/23 APVV project of the Ministry of Education, Research, Development and Youth of the Slovak Republic APVV-23-0051
Sažetak
(ne postoji na srpskom)
One of the environmental aspects of processing electronic waste using hydrometallurgical methods is the generation of waste solutions. Solutions after leaching and recovery of target metals are destined for disposal and contain valuable non-ferrous metals such as Cu, Sn, Ni, and others. Their disposal leads to wasting their material potential. The aim of this work is to propose a method by which selected non-ferrous metals can be selectively recovered from these solutions prior to disposal. The results of the experimental work show that the combination of pH adjustment with sodium hydroxide followed by cementation with iron is a suitable procedure for copper displacement from the solution. The cemented copper contains impurities. Removal of these impurities is possible by washing in sulfuric acid. pH adjustment can also be achieved using waste material containing copper. The results confirm that copper can be selectively recovered from waste solutions.
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