Cost-Effective Extraction of Zinc, Aluminium, and Lead from their Lamprophyre Dyke’s Mineralization, South-West Mersa Alam, Egypt | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 68, Issue 8, August 2025, Page 241-252 PDF (619.07 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2024.338159.10846 | ||||
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| Authors | ||||
Somia T. Mohamed1; Abeer A. Emam1; Wael M. Fathy1; Amr B. ElDeeb   2
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| 1Chemistry Department, Faculty of Science for girles, Al-Azhar University in Cairo, Egypt. | ||||
| 2Mining and petroleum department, Faculty of Engineering, Al-Azhar University, Nasr City, 11884, Cairo, Egypt. | ||||
| Abstract | ||||
| The Lamprophyric Dykes cut cataclastic rocks in NNW-SSE trends via share zones. The recorded minerals are mostly Zn-Mn oxide, an extract of the element Franklinite ZnFe2O4. Zinc and manganese oxide minerals are represented essentially by franklinite and woodruffite. The current study aims at the extraction of valuable metals including Al, Zn and Pb from Lamprophyric Dykes using cost-effective technology. The parameters affecting the extraction of Al, Zn and Pb from the used sample include the concentration of reagent, leaching time and temperature, and solid/ liquid ratio have been investigated. The kinetics and the mechanism of the leaching process was also studied. It has been noted that under the optimum leaching conditions, the leaching efficiencies for Al, Pb and Zn were 98.67%, 98.98% and 99.98%, respectively. Dissolution thermodynamic analysis has also been studied and the activation energies for leaching the different metal ions were 16.189, 19.66 and 15.867 kJ/mol for Pb, Al and Zn, respectively. | ||||
| Keywords | ||||
| Alkaline leaching; Hydrometallurgy; Zinc; Aluminium; Lead; Leaching Kinetics | ||||
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