The present investigations were carried out on Bataknala (BKN) phosphate deposits in Hazara (NWFP). Chemical, infrared spectral and thermogravimetric analyses showed these deposits to be of high-grade containing P2O5 mineral content greater than 30%. However, because of the presence ch high content of undesirable impurities, especially magnesia (%MgO. = 2.03 +/- 0.15), the phosphate ore is not acceptable to NFC for phosphate fertilizer production in the country. In the present study, efforts have been made to upgrade BKN ore employing particle size reduction and flotation techniques. Details of these investigations alongwith the results of chemical analyses, infrared spectral and thermogravimetric studies carried wt on the phosphate ore are described and discussed.
MOHAMMAD RIAZ ,MAHMOOD A KHWAJA ,ISMAT KHATTAK ,
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