Based on the results of flotation rate experiments and the first-order kinetic model of narrow grain size coal slime,the key parameters of coal slime flotation kinetics were studied,including the calculation of the maximum recoveryε∞ of combustible,determination of the flotation order nand variation of the flotation rate constant K.The results show that the empirical solution of the maximum combustible recoveryε∞is more appropriate than the model solution.The stages of flotation kinetics of narrow size clas...