Abstract

In this study, a pegmatite ore with a Na₂O/K₂O (5.54-4.29) ratio of 1.29 was studied in a Denver flotation cell in which both at natural and acidic pH using HF and H₂SO₄. Because of the perthitic structure of the ore no significant separation is observed at natural pH. Interestingly, a selective separation was achieved at low pH using HF and H₂SO₄ (pH 2–3). a pegmatite ore composed of 5.53% Na₂O and 4.29% K₂O is upgraded to 10.51% Na₂O and 6.59.02% K₂O with a Na₂O/K₂O = 1.62 in HF medium and to 2.55 in H₂SO₄ medium. It is shown that products recovered in various stages are also considered as commercially significant; especially quartz which is recovered in the tailings in HF medium is suitable for glass industry.

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