Flotation process response of Ok Tedi fluorine bearing minerals

Pangum, L.S., Manlapig, E.V., Mackinnon, I.D.R., & Lauder, D.W. (1997) Flotation process response of Ok Tedi fluorine bearing minerals. In Hancock, G.E. (Ed.) GEM 97 : PNG Exploration and Mining Conference Proceedings, Australasian Institute Mining & Metallurgy, Madang, Papua New Guinea, pp. 173-180.

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Orebodies at Ok Tedi contain a number of different fluorine bearing minerals. Some of these minerals report to concentrate and are responsible for the presence of the penalty element, fluorine, within the concentrate. Previous analytical work has tended to examine geological samples for content, rather than determine the metallurgical behaviour of the different mineralogical species. This investigation utilised X-Ray Diffraction combined with Scanning Electron Microscope/Electron Microprobe to identify the fluorine bearing minerals in flotation test products. Seven fluorine bearing minerals were identified, viz., talc, phlogopite, amphibole (tremolite and actinolite), sphene, apatite, biotite and clay. Talc was found exclusively in the skarn ore type. Phlogopite and amphiboles (tremolite and actinolite) were found to occur in both skarn and porphyry ores, while sphene, apatite, biotite and clay were found only in the porphyry ores. Of the fluorine bearing minerals observed, only talc exhibited natural hydrophobicity to any significant degree. Phlogopite and the amphibole minerals were found to be hydrophillic, whilst the remaining minerals occurred in insufficient quantities to determine the flotation behaviour. Ok Tedi copper concentrate fluorine content prior to skarn ore treatment in the mill (typically 350ppm) was previously identified as deriving from phlogopite, while talc was believed to be the source of intermittent high concentrate fluorine contents when skarn ores were treated. This paper provides supporting evidence for this belief, and reports the nature of fluorine bearing mineral flotation behaviour.

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ID Code: 57462
Item Type: Conference Paper
Refereed: Yes
Additional Information: WOS:000071281700023; ISI Document Delivery No.: BK12Y
Times Cited: 0
Cited Reference Count: 0
Pangum, LS Manlapig, EV Mackinnon, IDR Lauder, DW
Proceedings Paper
Port Moresby Branch PNG Geology, Exploration and Mining Conference (GEM 97)
Oct, 1997
Madang, papua n guinea
Clunies ross house 191 royal parade, parkville victoria, 3052, australia
Keywords: metallurgy of copper ore, fluorine bearing minerals, mineral processing, floatation behaviour, mineralogy
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Mineralogy and Crystallography (040306)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > RESOURCES ENGINEERING AND EXTRACTIVE METALLURGY (091400) > Mineral Processing/Beneficiation (091404)
Divisions: Current > Institutes > Institute for Future Environments
Deposited On: 27 Feb 2013 03:31
Last Modified: 28 Jun 2017 14:44

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