Abstract
This paper summarizes how the chemical parameters (collector concentration, frother concentration and different mixed frothers) affect the selectivity, kinetics and size wise flotation performance. Three different mixed frothers have been taken for this study. Frother ‘x’ is composed of alcohol and ketone. Frother ‘y’ consists of alcohol and aldehyde group chemicals. Frother ‘z’ is a blended product of alcohol and polyglycol ether. Flotation performance of different mixed chemical systems is correlated with affinity of frothers with air–water interface. Blended frothing molecules of short chain alcohol and polyglycol ether have shown a dramatic impact on the surface activity and flotation performance in term of ash reduction and improvement in coal yield.
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