Laboratory Flotation Studies of Tennessee Phosphates in the Presence of Slimes.
Lamont WE; Spruiell CE Jr.; Brooks DR; Feld IL
NTIS: PB 206 891 :17 pages
Flotation studies of phosphate-bearing waste pond materials, low- grade washer products, and raw ores, all from the Tennessee Brown Phosphate District, showed that these types of materials could be treated without desliming to recover high-grade phosphate concentrates. The investigation showed that fine grinding before flotation was a requisite for increased recovery of the phosphate values, and that the optimum ph conditions were in the range of 10.0 to 10.5 When using anionic collectors. Multiple-cleaning of the rougher phosphate concentrate was required to produce high-grade concentrates. Phosphate recoveries ranged from 60 to 82 percent and were inversely related to the grade of concentrate produced.
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