RESEARCH ON THE BENEFICIATION OF THE EPIRUS PHOSPHATE ROCK (eng)
- (eng) In this paper the beneficiation of the unaltered phosphate rocks of Kosmira, Epirus, by flotation is described. This work is a continuation of our earlier research on the flotation of the altered phosphate rocks of Epirus. The unaltered phosphate rock contained 14,70% P2O5 and was subjected to crushing and grinding to a fineness of 95%-by wt-100 mesh. The slimes so produced representing 33,7% by wt of the run-of-mine ore, and containing 14% P2O5 (30,3% of the original P2O5 content) were rejected. The remaining material was subjected to a flotation treatment whereby calcite was floated as follows: The ore was conditioned with orthophosphoric acid as PH conditioner, Reagent 710 of American Cyanamid as collector and Texapon K12 as frothing agent. The calcite was then floated under a pulp density of 20% solids. The floated material being 33,5% by wt of the run-of-nine ore and containing 3.76% P2O5 (8,2% of the original P2O5 content) was rejected. The rest, being 32,8% by wt of the run-of-mine ore and containing 29,19 8% P2O5 (61,5% of the original P2O5 content), represents the concentrate.
(gre) Γίνεται μελέτη για τον εμπλουτισμό των φωσφωριτών της Ηπείρου η οποία οδηγεί σε συμπεράσματα τα οποία ποικίλλουν ανάλογα με τον τύπο του υπό μελέτη μεταλλεύματος, γίνεται δε σύγκριση των αποτελεσμάτων για κάθε τύπο μεταλλεύματος.
ΕΡΕΥΝΑΙ ΕΠΙ ΤΟΥ ΕΜΠΛΟΥΤΙΣΜΟΥ ΤΩΝ ΦΩΣΦΩΡΙΤΩΝ ΤΗΣ ΗΠΕΙΡΟΥ
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