Abstract
The floatability of composite particles in a phosphate ore was studied by QEM∗SEM (Quantitative Evaluation of Materials by Scanning Electron Microscopy). The particles were classified according to their calcium phosphate content. The flotation recovery values for each class of composite particles were obtained both experimentally and theoretically. By using the weighted linear regression analysis, the correlation between the experimental and theoretical recovery values is close to linear and supports the proposition that the floatability of a composite particle is the average of the floatabilities of its component minerals weighted by the volume fraction of each mineral.
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