Development of a model for serpentine quantification in nickel laterite minerals by infrared spectroscopy

Basile, Andrew, Hughes, Jeffrey, McFarlane, Angus J. and Bhargava, Suresh K. (2010) Development of a model for serpentine quantification in nickel laterite minerals by infrared spectroscopy. Minerals Engineering, 23 5: 407-412.


Author Basile, Andrew
Hughes, Jeffrey
McFarlane, Angus J.
Bhargava, Suresh K.
Title Development of a model for serpentine quantification in nickel laterite minerals by infrared spectroscopy
Journal name Minerals Engineering  (ERA 2012 Listed)    (ERA 2010 Rank A*)   Check publisher's open access policy
Publication date 2010-04
Sub-type Article
DOI 10.1016/j.mineng.2009.11.018
Volume number 23
Issue number 5
ISSN 0892-6875; 1872-9444
Start page 407
End page 412
Total pages 6
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Formatted abstract An investigation into the possibility of using infrared techniques to quantify serpentine in nickel laterite ores was carried out. Results obtained from this preliminary study confirmed that high confidence in serpentine content prediction is possible obtaining RMSEP and R2 values of 1.76 and 0.97 respectively.

One hundred and forty mineral mixtures simulating limonite, transition and saprolite horizons of a Western Australian nickel laterite deposit were prepared. Diffuse reflectance infrared Fourier transform spectroscopy spectra obtained from these mixtures were used as a training set to prepare a quantitative model for serpentine content using Partial least squares multivariate analysis.

The model in turn was validated by predicting the serpentine content of 20 synthetic mixtures with confidence. The model was applied to 10 natural ores from various deposits, diversity between the synthetic and natural ore assemblages meant the analysis was qualitative. Model development using real ore samples would be required to enable incorporation of the intrinsic properties of the natural serpentine and the ore mineralogy in general.
Keyword Diffuse reflectance infrared Fourier
Transform spectroscopy
Serpentine
Leaching
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Tue, 09 Aug 2011, 15:55:44 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre