MICROSTRUCTURAL AND ELEMENTAL CHARACTERIZATION OF ZINC PRODUCTION CAKE BY SCANNING ELECTRON MICROSCOPY AND ENERGY-DISPERSIVE X-RAY SPECTROSCOPY
Keywords:
zinc production cake; SEM; EDS; elemental mapping; hydrometallurgical processing; zinc residues; metal recovery; microstructure.Abstract
Zinc production cakes generated during hydrometallurgical processing contain valuable metals and represent a potential secondary resource. In this study, the microstructural and elemental characteristics of zinc production cake samples were investigated using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and elemental mapping. SEM analysis revealed a heterogeneous and porous morphology consisting of agglomerated fine particles. EDS results showed that the sample was mainly composed of oxygen (27.2 wt.%), zinc (25.3 wt.%), iron (16.8 wt.%), and sulfur (14.6 wt.%), with smaller amounts of copper, sodium, calcium, silicon, bromine, and magnesium. Elemental mapping confirmed the widespread distribution of Zn, O, S, and Fe, indicating the presence of oxide, hydroxide, and sulfate phases. The results demonstrate that zinc production cake possesses a complex microstructure and contains significant amounts of recoverable metals, highlighting its potential for secondary resource recovery and sustainable waste management.
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