Sorting mined material
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United States of America Patent
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Jan 28, 2014
Grant Date -
Jul 21, 2011
app pub date -
Sep 11, 2009
filing date -
Sep 11, 2008
priority date (Note) -
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Abstract
A method of sorting mined material to separate the mined material is disclosed. The method comprises exposing particles of the mined material to microwave energy and heating the particles depending on the susceptibility of the material in the particles. The method also comprises thermally analyzing the particles using the temperatures of the particles as a basis for the analysis to indicate composition differences between particles. The thermal analysis step includes thermally assessing particles against a background surface. The thermal analysis step also includes heating the background surface to a temperature that is different to the temperature of the particles to provide a thermal contrast between the particles and the background surface. The method also comprises sorting the particles on the basis of the results of the thermal analysis.
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