Reducing the Concentrate Ash Content of Coal Flotation by Changing the Operating Parameters

One of the most important industries in the country is the steel industry, which is the most important coke consumer in this industry. One of the important parts of the coke production is the appropriate quality of coal, which the ash content should be low according to the standards. In this research, an attempt was made to increase the recovery of the flotation unit and reduce the ash content of the Alborz-Sharghi coal washing plant. Three stages of flotation tests were designed. The amounts of kerosene as the collector and MIBC as the frother were set and the best result was obtained in the slurry solids concentration of ۱۰ percent and the particle size of -۵۰+۵۰۰ microns, which decreased the ash content from ۱۴.۶% to ۵.۹% and increased the recovery from ۴۹. ۶% to ۷۴.۶%. After applying the circulating load, the recovery and ash both decreased and the total recovery reached ۶۹.۹% and the ash of the final product reached ۱۸.۶%.

کلیدواژه ها:

Ash ، Coal ، Flotation ، solid content ، particle size ، circulating load