Phosphate beneficiation by calcination. Prediction of P2O5 in the product,mining and plant control |
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| Authors: | D. Issahary I. Pelly |
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| Affiliation: | 1. “Negev Phosphates Ltd”, Oron, and Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva, Israel;2. Department of Geology and Mineralogy, Ben Gurion University of the Negev, Beer Sheva, Israel |
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| Abstract: | A method is described to predict P2O5 content in the product (of phosphate beneficiation by calcination) as a function of the composition of an untreated and also of a washed raw material. The method consisted of: (a) developing an on-line multielement analysis by XRF; (b) finding the elemental and mineralogical relationships in the product, by factor analysis; (c) determination of the independent variables; (d) finding the relationships between the concentrations of the impurity variables in the raw material and in the product; (e) developing a linear model to predict P2O5 content. The predictions are used for mining and for plant control. |
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| Keywords: | Author to whom correspondence should be addressed. |
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