|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 2 van 8 gevonden artikelen
| Titel: |
Alkaline leaching of mechanically activated berthierite and boulangerite |
| Auteur: |
Marcela Achimovičová Peter Baláž |
| Verschenen in: |
Acta Montanistica Slovaka |
| Paginering: | Jaargang 11 (2006) nr. speci 2 pagina's 274-279 |
| Jaar: |
2006 |
| Inhoud: |
In this study, changes in the surface area, morphology and the leachability of antimony from mechanically activated berthierite FeSb2S4, boulangerite - Pb5Sb4S11 by a high-energy planetary mill were investigated. It appears, that an extraction of antimony from these complex sulphosalts in the alkaline solution of sodium sulphide is positively affected by the mechanical activation. An influence of milling on the mineral particle size and shape was studied by scanning electron microscopy. The temperature dependencies of alkaline leaching of berthierite were investigated in the interval of 323-363 K. The resulting experimental activation energies EA were 0.11 kJ.mol-1 and 6.78 kJ.mol-1 for mechanically activated berthierite. The values EA are characteristic for a process controlled by diffusion as the rate controlling step of leaching reaction. |
| Uitgever: |
Technical University of Kosice, the Faculty of Mining, Ecology, Process Control and Geotechnologies (F BERG) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 8 gevonden artikelen
| << vorige | volgende >> |