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Conference Proceedings

First AusIMM International Geometallurgy Conference (GeoMet) 2011

Conference Proceedings

First AusIMM International Geometallurgy Conference (GeoMet) 2011

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Characterising Liberation and Flotation Potential Using Image Analysis, Simulated Fragmentation and Small-Scale Flotation

A critical aspect of geometallurgy is quantifying mineralogical and textural relationships that affect mineral processing (eg, liberation and recovery). However, to date, this has been an expensive and time consuming venture and only minimal amounts of this type of data are typically available to be included in the mine planning process. Our research is focused on developing methods that will produce the required mineralogical and textural data rapidly and inexpensively. New methods of characterising liberation potential from image analysis of coarse particulate material and direct small-scale flotation measurement are compared with measurement of liberation at final grind size (ie conventional tests on MLA). The new tests are designed to rank the liberation potential of samples in order to classify an ore deposit into domains of low, medium and high liberation potential. This parameter can then be used to adjust the cutoff used to differentiate ore from waste. Results to date show that all tests provide the same ranking for the samples. The measurement based on coarse particulate material compares favourably to the results from MLA analyses on the same samples. Further work is being carried out to determine which of the tests will be the most effective in terms of time, effort and cost
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  • Published: 2011
  • PDF Size: 0.109 Mb.
  • Unique ID: P201110036

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