Theoretical and Experimental Aspects of Influence of Temperature on Kinetics of Carbonaceous Materials Froth Flotation

The relation between rate constant k1 and absolute temperature T for graphite, anthracite, coal floated with only frother was investigated using combined theoretical empirical approaches. It determined that the lnk1 1/T is curvilinear requires a polynomial of second degree sufficient approximation experimental data points. Therefore, well-known Arrhenius formula chemical reactions, predicting linear relation, cannot be used relating 1/T. Available in literature thermodynamic kinetic considerations show reactions equilibrium processes first order = lnk?1-?Ho /RT +?So/R, where ?Ho standard enthalpy change, ?So entropy R gas k?1 reverse reaction, our case disintegration bubble-particle aggregate. Assuming performed batch flotation tests long time provide an quantity called ultimate or maximum recovery, values as well process were determined. found depended on two constants (?Ho ?So) variables (1/T f(1/T)).