Pentlandite oxidation in the flotation of a complex nickel ore in saline water

Peng, Y., Wang, B. and Bradshaw, D. (2011) Pentlandite oxidation in the flotation of a complex nickel ore in saline water. Minerals Engineering, 24 1: 85-87. doi:10.1016/j.mineng.2010.09.002


Author Peng, Y.
Wang, B.
Bradshaw, D.
Title Pentlandite oxidation in the flotation of a complex nickel ore in saline water
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2011-01
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.mineng.2010.09.002
Volume 24
Issue 1
Start page 85
End page 87
Total pages 3
Editor B. A. Wills
Place of publication Oxford, U.K.
Publisher Pergamon Press
Collection year 2011
Language eng
Formatted abstract
Flotation of a low grade pentlandite ore containing large amounts of serpentine minerals from Western Australia was conducted with process water having high ionic strength. Nickel recovery was low in the flotation of both fine and coarse fractions. X-ray photoelectron spectroscopy (XPS) analysis indicated that oxidation occurred on both fine and coarse pentlandite particles. To reduce pentlandite oxidation, sodium hydrosulphide (NaHS) and dithionite (Na2S2O4) were added during grinding. It was found that NaHS improved both pentlandite and serpentine mineral flotation and deteriorated pentlandite separation from serpentine, whilst Na2S2O4 improved pentlandite flotation without affecting serpentine flotation and therefore increased pentlandite separation from serpentine.

Keyword Coarse particle flotation
Fine particle flotation
Oxidation
Pentlandite
Saline water
Serpentine
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 28 September 2010

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
School of Chemical Engineering Publications
Official 2011 Collection
 
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Created: Mon, 22 Nov 2010, 10:28:46 EST by Dr Yongjun Peng on behalf of School of Chemical Engineering