AbstractsChemistry
Optimising regrinding chemistry
| Institution: | University of South Australia |
|---|---|
| Department: | |
| Degree: | PhD |
| Year: | 2010 |
| Keywords: | Flotation reagents; Surface chemistry; Sulfide minerals |
| Record ID: | 1037366 |
| Full text PDF: | http://itupl-ura1.ml.unisa.edu.au:80/R/?func=dbin-jump-full&object_id=unisa46168 |
Abstract
The chemistry during regrinding is critical to flotation. It has significant effects on mineral surface properties and can lead to different mineral floatabilities. This research seeks to quantify contributing factors to changes in mineral flotation behavior with grinding and regrinding. The influence of the particle breakage mechanism on mineral floatability is also investigated. In this research, sulphide mineral surface species and hydrophobicity were analyzed by a range of techniques, including X-ray photoelectron spectroscopy (XPS), surface area measurement (BET), ethylene diamine-tetra acid (EDTA) extraction and contact angle measurements.
