Ultrafine particles in ground sulfide ores: A comparison of four Cu-Ni ores from Siberia, Russia
| Autor: | Sergey Karasev, Yuri Mikhlin, Mikhail N. Volochaev, Alexander Romanchenko, Sergey Vorobyev, Ekaterina Burdakova, Evgeny Kamenskiy |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Sulfide Scanning electron microscope Metallurgy Geochemistry Beneficiation Geology 010501 environmental sciences 010502 geochemistry & geophysics 01 natural sciences chemistry X-ray photoelectron spectroscopy Electron diffraction Dynamic light scattering Geochemistry and Petrology Transmission electron microscopy Ultrafine particle Economic Geology 0105 earth and related environmental sciences |
| Zdroj: | Ore Geology Reviews. 81:1-9 |
| ISSN: | 0169-1368 |
| DOI: | 10.1016/j.oregeorev.2016.10.024 |
| Popis: | Nano-, submicro- and micrometer mineral particles may have an important role in beneficiation of metal ores and environmental impact, but their origin and characteristics are poorly understood. Here, we report data for the yield and the composition of fine fractions, and surfaces of several ground Cu-Ni sulfide ores studied using laser diffraction, scanning electron microscopy and energy dispersive X-ray analysis, X-ray photoelectron spectroscopy. Colloidal particles were characterized using dynamic light scattering, zeta-potential measurement, transmission electron microscopy and electron diffraction. The production of fines by dry milling was found to increase from about 0.01 vol.% to 0.2 vol.% for submicrometer particles and from ~ 0.5 vol.% to about 1.5 vol.% for particulate material less than 5 μm in the following order: Noril'sk disseminated low sulfide ore ≤ Noril'sk Cu-rich sulfide ore |
| Databáze: | OpenAIRE |
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