| Pacific Rim Symposium on Surfaces, Coatings and Interfaces (PacSurf 2014) | |
| Nanomaterials | Monday Sessions |
| Session NM-MoE |
| Session: | Nanomaterials Characterization & Reactivity I |
| Presenter: | Akira Otsuki, University of Lorraine, France |
| Correspondent: | Click to Email |
binder was investigated to produce quality pellets by properly controlling the surface properties of
minerals and to beneficiate low grade/fine iron ores. The results showed that zeta potential of
hematite-bentonite mixture did not change with the bentonite dosage. On the other hand, the type and
amount of gangue minerals greatly affected the zeta potential of the mineral mixture with bentonite.
Specifically, the amount of silica presented in the system governed the changes in zeta potential due to
the bentonite adsorption on silica surface and its charge while alumina had no effect. This is due to
their nature of the charges and interaction with bentonite. This study indicated that the mineral
composition of iron ores significantly affected the surface charge of the ore, and can noticeably
influence the quality of pellets formed by iron ores with the binder.