Cleaning of Dulmial-Punjab Coal by Froth Flotation

Abstract

This study was undertaken to assess the cleaning potential of Dulmial-Punjab coal by froth flotation.Release analysis was performed to determine the optimum flotation response of the coal. Number of batchflotation tests were performed to investigate the effects of various parameters such as particle size, impellerspeed, collector dosage, frother dosage and conditioning time on clean coal yield and ash content. It wasfound that maximum yield of 51.25% with 39.5% ash content was achieved at impeller speed, collectordosage, frother dosage and conditioning time of 1600 RPM, 1200 g/t, 200 g/t and 10 min, respectively.