In depth analysis of alumina removal from iron ore fines using teetered bed gravity separator
- Sarkar, B
- Das, Avimanyu
- Roy, Subrata
- Rai, S K
DOIAbstract
The performance of floatex density separator (FDS) for alumina removal from iron ore fines of size <1˙0 mm has been studied. Screw classifier feed containing 4˙28% alumina has been used as the raw feed material. Desliming in hydrocyclone helps to reduce the alumina content down to 3˙39% by removing high alumina bearing ultrafine particles. Experimental campaign was undertaken considering a factorial design of experiments with three factors, namely teeter water rate, bed pressure and feed pulp density, to quantify the influence of various parameters. It was found that in single stage processing in FDS, 72% of the feed alumina could be removed. A concentrate containing 1˙66% alumina could be achieved at a yield of ∼57% in FDS. Higher teeter w...
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