Journal
INTERNATIONAL JOURNAL OF MINERAL PROCESSING
Volume 93, Issue 2, Pages 155-164Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.minpro.2009.07.011
Keywords
Cuprite; Surface adsorption; Dithiophosphate collectors; X-ray photoelectron spectroscopy
Funding
- Commonwealth of Australia
- Australian Synchrotron, Victoria Australia [BL141D]
- AMIRA International
- South Australian Government
- NSRRC
- South Australian Museum [618365]
- Harold Gallasch, Australian Minerals
Ask authors/readers for more resources
The interaction of freshly abraded surfaces of cuprite, Cu(2)O, with neutral or mildly alkaline aqueous solutions of diethyl or di-n-butyl dithiophosphate (DTP) has been investigated by means of conventional and synchrotron X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structure spectroscopy. It was confirmed that DTP adsorbs readily on Cu atoms in the surface layer of the mineral treated with solutions of the collector at pH values near 7 and 9 in the presence of air. and renders the surface hydrophobic. When cuprite is treated with relatively high concentrations of DTP for sufficiently long periods, collector can also be adsorbed as CuDTP, but the coverage does not exceed a thin layer of CuDTP on the adsorbed DTP monolayer, unlike the situation with Cu metal or chalcocite where a thick multilayer can be formed. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available