The effect of reagents and reagent mixtures on froth flotation of coal fines

Demineralization of low grade coal – A review

“…Reagent used and type of the reagent are important factors in froth flotation. The effect of reagents and reagent mixtures on flotation of bituminous coal fines (23.95% ash) was investigated [52]. The highest recoveries ( 490%) were achieved in the presence of conventional reagents like MIBC or sodium dodecyl sulfate (SDS).…”

An overview of reverse flotation process for coal

“…It has also (Zhang et al, 2013). been found by Horsley and Smith (1951) that in order to obtain equal recoveries larger quantities of reagents are required for anthracite and lignite coals than for bituminous coals. In order to make the process successful for these types of coal, different reagents or surfactants have been tried by many researchers (Erol et al, 2003;Moxon and Keast-Jones, 1986;Read et al, 1989;Cebeci, 2002;Ofori et al, 2012;Jia et al, 2002). The works had done so far have not been able to establish any universal reagent for enhancement of floatability of such coals.…”

Enhancing fluidization stability and improving separation performance of fine lignite with vibrated gas‐solid fluidized bed

“…These mainly include hydraulic jigging, [8,9] dense medium cyclone separation, [10] hydraulic shaking tables, froth flotation, [11][12][13] etc. However, lignite easily degrades in water and shows a sliming property.…”