Next Article in Journal / Special Issue
Integrated Approaches for the Study of Real Mineral Flotation Systems
Previous Article in Journal
Effect of Sludge Amendment on Remediation of Metal Contaminated Soils
Previous Article in Special Issue
A Study of the Effect of Djurliete, Bornite and Chalcopyrite during the Dissolution of Gold with a Solution of Ammonia-Cyanide
Open AccessArticle

The Adsorption of n-Octanohydroxamate Collector on Cu and Fe Oxide Minerals Investigated by Static Secondary Ion Mass Spectrometry

School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
Ian Wark Research Institute, University of South Australia, Mawson Lakes, SA 5046, Australia
Queensland Micro- and Nanotechnology Centre, School of Biomolecular and Physical Sciences, Griffith University, Nathan, QLD 4111, Australia
Author to whom correspondence should be addressed.
Minerals 2012, 2(4), 493-515;
Received: 12 September 2012 / Revised: 26 November 2012 / Accepted: 4 December 2012 / Published: 10 December 2012
(This article belongs to the Special Issue Advances in Mineral Processing)
The feasibility of investigating the adsorption of n-octanohydroxamate collector on copper and iron oxide minerals with static secondary ion mass spectrometry has been assessed. Secondary ion mass spectra were determined for abraded surfaces of air-exposed copper metal, malachite, pseudomalachite and magnetite that had been conditioned in aqueous potassium hydrogen n-octanohydroxamate solution, as well as for the corresponding bulk CuII and FeIII complexes. In each case, the chemical species present at the solid/vacuum interface of a similarly prepared surface were established by X-ray photoelectron spectroscopy. The most abundant positive and negative metal-containing fragment ions identified for the bulk complexes were also found to be diagnostic secondary ions for the collector adsorbed on the oxide surfaces. The relative abundances of those diagnostic ions varied with, and could be rationalised by, the monolayer or multilayer coverage of the adsorbed collector. However, the precise mass values for the diagnostic ions were not able to corroborate the different bonding in the copper and iron hydroxamate systems that had been deduced from photoelectron and vibrational spectra. Parent secondary ions were able to provide supporting information on the co-adsorption of hydroxamic acid at each conditioned surface. View Full-Text
Keywords: flotation (surface chemistry); base metal minerals; reagents flotation (surface chemistry); base metal minerals; reagents
Show Figures

Figure 1

MDPI and ACS Style

Buckley, A.N.; Denman, J.A.; Hope, G.A. The Adsorption of n-Octanohydroxamate Collector on Cu and Fe Oxide Minerals Investigated by Static Secondary Ion Mass Spectrometry. Minerals 2012, 2, 493-515.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Search more from Scilit
Back to TopTop