| Autor: |
Moreno-Saldaña, S. I., Martínez-Gómez, V. J., Valle-Cervantes, S., Lucho-Chigo, R., Rojas-Montes, J. C., Fuentes-Aceituno, J. C., Pérez-Garibay, R. |
| Předmět: |
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| Zdroj: |
JOM: The Journal of The Minerals, Metals & Materials Society (TMS); May2021, Vol. 73 Issue 5, p1353-1361, 9p |
| Abstrakt: |
The purpose of this study was to determine the maximum amount of lead that can be electrodeposited on a graphite cathode during the application of the electro-remediation technique. The lead comes from the reduction of soil contaminated with galena. The project was divided into three sections: the first was an electrochemical study at the microelectrolysis level carried out to evaluate the behavior of galena (lead sulfide, PbS) in the cathodic zone using different electrolytes where the reduction potentials of galena were determined; the second stage consisted of laboratory experiments on the leaching of PbS in mining tailings; finally, the maximum electrodeposition of lead on graphite electrodes was evaluated. Different electrolytes at different concentrations were studied as variables. The microelectrolysis level results show that ferric chloride (FeCl3) is a faster leaching agent than hydrochloric acid (HCl) or sodium chloride. However, in the case of the electrodeposition of lead, the HCl electrolytic medium was the best of the tested solutions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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