The local critical coalescence concentration l-CCC presents a relationship between frother concentration and the gas flow rate Q(g)' at which coalescence starts to occur at a capillary tube. Such a relationship is used in ...

Frother usage in cationic iron ore flotation still is scarcely employed in current applications and, consequently, the mechanisms involved directly on the synergic interaction between frother and cationic collector are not ...

There is considerable room for the development of joint application of frothers and amine on iron ore reverse cationic flotation. The use of the frothers in this application is few explored, because in pH usually applicable ...

In mineral industry Mining industry normally looks for optimization of reagents related to flotation of iron ore, focusing on to achieve a more sustainable consumption, which leads to a new generation of reagents that, ...

Coal macerals can be separated using flotation process by taking advantage of differences in their surface properties. In this work, the effect of pH, air velocity (Jg) and frother concentration (FC) on the vitrinite ...

Mathematical models for the calculation of gas holdup in liquid-gas systems from experimental measures of the electrical conductance at several frother levels are presented in this paper. Experimental data were taken by a ...

Reverse cationic flotation has been widely utilized in the concentration of iron ores. The efficiency of the process strongly depends on the characteristics of the froth phase which is function of the used system of chemical ...

The present work has evaluated the hematite direct flotation, through bench scale tests, with the natural - 150m fraction of an itabiritic ore of low iron content (26.0%) from the iron quadrangle in Minas Gerais, Brasil. ...